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S1
Electronic Supplementary Information
One-pot Palladium catalyzed ligand and metal oxidant-free aerobic oxidative isocyanide insertion
leading to 2-amino-substituted-4(3H)-quinazolinones
Shinde Vidyacharan, N. C. Chaitra, A. Sagar and Duddu S. Sharada*
Department of Chemistry, Indian Institute of Technology (IIT) Hyderabad, Ordnance Factory Estate
Campus, Yeddumailaram – 502 205, Medak District, Telangana, India.
Table of Contents
Experimental section……………………………………………………………… (S2)
General procedure for the synthesis of 2-amino-substituted-4(3H)-quinazolinones.. (S2)
Spectral data of all compounds (5a-5s)…………….…………………………… (S3-S8)
Copies of 1H,
13C NMR spectra of all compounds (5a-5s)……………………… (S9-S28)
References…………………………………………………………………………………… (S28)
S2
Experimental Section
General: IR spectra were recorded on a Bruker Tensor 37 (FTIR) spectrophotometer. 1H NMR spectra
were recorded on Bruker Avance 400 (400 MHz) spectrometer at 295 K in CDCl3; chemical shifts (δ in
ppm) and coupling constants (J in Hz) are reported in standard fashion with reference to either internal
standard tetramethylsilane (TMS) (δH = 0.00 ppm) or CHCl3 (δH = 7.25 ppm). 13
C NMR spectra were
recorded on Bruker Avance 400 (100 MHz) spectrometer at RT in CDCl3; chemical shifts (δ in ppm) are
reported relative to CHCl3 (δC = 77.00 ppm). In the 1H-NMR, the following abbreviations are used
throughout: s = singlet, d = doublet, t = triplet, q = quartet, qui = quintet, m = multiplet and br s = broad
singlet, sept = septet. The assignment of signals were confirmed by 1H and
13C spectral data. High-
resolution mass spectra (HR-MS) were recorded on an Agilent 6538 UHD Q-TOF using multimode
source. Microwave experiments were carried out with CEM Discover LabmateTM
instrument in 10 ml
vial, closed vessel, Power: 250W, Temperature: 60 °C-100 oC for 50-100 minutes. Melting points were
determined using melting point apparatus manufactured by GUNA enterprises, India and are uncorrected.
All small scale reactions were carried out using standard syringe-septum technique. Reactions were
monitored by TLC on silica gel using a combination of hexane and ethyl acetate as eluents. Solvents were
distilled prior to use.
General Procedure for the synthesis of 2-amino-substituted-4(3H)-quinazolinones (5a-5v):
In an oven dried schlenk tube under argon atmosphere, were added isatoic anhydride (1 equiv, 0.609
mmol), amine (1 equiv, 0.609 mmol) and activated 4Å molecular sieves (150 mg) followed by addition of
dry DMSO (2 mL). The reaction mixture was stirred at 110 oC for 30 min to 4 h. The completion of first
step was monitored by TLC. Once dinucleophile was formed Pd(OAc)2 (5 mol%), CyNC (1.5 equiv.,
0.913 mmol) were added in same pot under argon atmosphere. It was evacuated and filled with O2 by
using a balloon. The resulting reaction mixture was heated at 110 oC. Progress of the reaction was
monitored by TLC, which took 15-17 h. The reaction mixture was then quenched with water and the
product was extracted with ethyl acetate. The organic layer was dried over Na2SO4 and concentrated in
vacuo. The crude product was purified by column chromatography on silica gel using petroleum
ether/ethyl acetate as eluent, which afforded the desired product (5a-5w). All the compounds were
confirmed by FTIR, 1H NMR,
13C NMR and HR-MS Spectral analyses. Among 22 compounds,
19 are unknown and 3 (5a, 5i & 5m) are known.
S3
Spectral data of all compounds (5a-5s):
3-Benzyl-2-(cyclohexylamino)quinazolin-4(3H)-one (5a):[1]
White solid (75%), Mp 106-108 oC.
[TLC control Rf(1) = 0.30, Rf(5a) = 0.70 (petroleum ether/ethyl acetate 8:2, UV detection)]. IR (MIR-
ATR, 4000–600 cm-1
): ʋmax = 3324, 3059, 2921, 1627, 1584, 1517, 1487, 1384, 1230, 1198, 1029, 951,
751, 640.
1H NMR (CDCl3, 400 MHz): δH = 8.18 (dd, 1H, Ja = 8.1 and Jb = 1.2 Hz), 7.60-7.56 (m, 1H), 7.38-7.30
(m, 4H), 7.29-7.26 (m, 1H), 7.17 (t, 1H, J = 7.6 Hz), 5.32 (s, 2H), 4.36 (d, 1H, J = 6.8 Hz), 3.99-3.91 (m,
1H), 1.83 (dd, 2H, Ja = 8.6 and Jb = 3.7 Hz), 1.53-1.46 (m, 3H), 1.40-1.29 (m, 2H), 1.18-0.98 (m, 3H). 13
C
NMR (CDCl3, 100 MHz): δC = 163.2, 149.5, 149.2, 135.3, 134.4, 129.4, 128.2, 127.4, 126.6, 124.9, 122.4,
116.9, 49.7, 44.6, 42.5, 25.6, 24.2.
HR-MS (ESI+) m/z calculated for [C21H24N3O]+ = [M+H]
+: 334.1914; found: 334.1901.
2-(Cyclohexylamino)-3-(4-methoxybenzyl)quinazolin-4(3H)-one (5b): White solid (78%), Mp 130-132 oC. [TLC control Rf(1) = 0.30, Rf(5b) = 0.80 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3421, 2999, 2928, 2852, 1662, 1610, 1578, 1561, 1475, 1450,
1346, 1247, 1176, 1033, 982, 765, 693.
1H NMR (CDCl3, 400 MHz): δH = 8.18 (dd, 1H, Ja = 7.8 and Jb = 1 Hz ), 7.60-7.56 (m, 1H), 7.37 (d, 1H,
J = 8.3 Hz), 7.21 (d, 2H, J = 8.8 Hz), 7.17 (m, 1H), 6.88 (d, 2H, J = 8.3 Hz), 5.26 (s, 2H), 4.44 (d, 1H, J =
6.8 Hz), 3.99-3.93 (m, 1H), 3.79 (s, 3H), 1.88-1.86 (dd, 2H, Ja = 8.1 and Jb = 3.7 Hz ), 1.54-1.52 (m, 3H),
1.41-1.32 (m, 2H), 1.20-1.15 (m, 1H), 1.10-1.01 (m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 163.4,
159.7, 149.4, 149.3, 134.3, 127.9, 127.3, 127.2, 124.9, 122.3, 116.9, 114.7, 55.3, 49.7, 44.1, 32.6, 25.6,
24.3.
HR-MS (ESI+) m/z calculated for [C22H26N3O2]+ = [M+H]
+: 364.2020; found: 364.2003.
2-(Cyclohexylamino)-3-(4-methylbenzyl)quinazolin-4(3H)-one (5c): White solid (78%), Mp 138–140 oC. [TLC control Rf(1) = 0.30, Rf(5c) = 0.70 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3422, 2926, 2853, 1659, 1562, 1475, 1346, 1224, 1147, 1069, 986,
765, 695. 1H NMR (CDCl3, 400 MHz): δH = 8.18 (dd, 1H, J = 7.8 Hz), 7.59-7.55 (m, 1H), 7.37 (d, 1H, J =
8.3 Hz), 7.18-7.16 (m, 5H), 5.28 (s, 2H), 4.4 (d, 1H, J = 6.8 Hz), 3.90-3.99 (m, 1H), 2.33 (s, 3H), 1.80-
1.87 (m, 2H), 1.50 (d, 3H, J = 10.3 Hz), 1.30-1.41 (m, 2H), 1.12-1.19 (m, 1H), 0.99-1.08 (m, 1H).13
C
NMR (CDCl3, 100 MHz): δC = 163.2, 149.5, 149.3, 138.0, 134.3, 132.21, 130.0, 127.3, 126.6, 124.9,
122.4, 116.9, 49.8, 44.4, 32.5, 25.6, 24.2, 21.1.
HR-MS (ESI+) m/z calculated for [C22H26N3O]+ = [M+H]
+: 348.2070; found: 348.2056.
2-(Cyclohexylamino)-3-(3,4-dimethoxybenzyl)quinazolin-4(3H)-one (5d) : Orange solid (75%), Mp
100-102 oC. [TLC control Rf(1) = 0.30, Rf(5d) = 0.60 (petroleum ether/ethyl acetate 8:2, UV detection)].
S4
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3413, 2928, 2853, 1667, 1580, 1475, 1380, 1260, 1141, 1027,
766, 694.
1H NMR (CDCl3, 400 MHz): δH = 8.17 (dd, 1H, Ja = 7.8 and Jb = 1 Hz), 7.59-7.55 (m, 1H), 7.36 (d, 1H,
J = 8.3 Hz), 7.16 (t, 1H, J = 7.6 Hz), 6.82-6.78 (m, 3H), 5.24 (s, 1H), 4.51 (d, 1H, J = 7.3 Hz), 3.95 (dt,
1H, Ja = 6.6 and Jb = 3.1 Hz), 3.86 (s, 3H), 3.81 (s, 3H), 1.88-1.85 (m, 2H), 1.53 (d, 3H, J = 8.3 Hz),
1.37-1.31 (m, 3H), 1.14-1.10 (m, 3H). 13
C NMR (CDCl3, 100 MHz): δC = 163.2, 149.9, 149.5, 149.4,
149.0, 134.3, 127.8, 127.3, 124.9, 122.4, 119.0, 116.9, 109.7, 56.0, 55.9, 49.8, 44.6, 32.6, 25.6, 24.8.
HR-MS (ESI+) m/z calculated for [C23H28N3O3]+ = [M+H]
+: 394.2125; found: 394.2129.
2-(Cyclohexylamino)-3-(3-methoxybenzyl)quinazolin-4(3H)-one (5e): White solid (65%), Mp 108–
110 oC. [TLC control Rf(1) = 0.30, Rf(5e) = 0.70 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1): ʋmax = 3423, 2969, 2853, 1662, 1579, 1563, 1476, 1347, 1261, 1147,
1049, 985, 766, 694.
1H NMR (CDCl3, 400 MHz): δH = 8.19 (dd, 1H, Ja = 7.8 and Jb = 1.0 Hz), 7.62-7.57 (m, 1H), 7.38 (d,
1H, J = 8.3 Hz), 7.31-7.27 (m, 1H), 7.18 (t, 1H, J = 7.1 Hz), 6.86 (dd, 2H, Ja = 7.1 and Jb = 4.2 Hz), 6.82
(s, 1H), 5.30 (s, 2H), 4.41 (d, 1H, J = 6.8 Hz), 3.97 (dd, 1H, Ja = 7.6 and Jb = 4.2 Hz), 3.78 (s, 3H), 1.86
(dd, 2H, Ja = 8.3 and Jb = 3.9 Hz), 1.55-1.49 (m, 3H), 1.42-1.33 (m, 2H), 1.21-1.15 (m, 1H), 1.10-1.02
(m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 163.1, 160.5, 149.4, 149.2, 136.9, 134.3, 130.4, 127.3, 124.9,
122.4, 118.9, 116.8, 113.78, 112.2, 55.3, 49.7, 44.6, 32.5, 25.5, 24.2.
HR-MS (ESI+) m/z calculated for [C22H26N3O2]+ = [M+H]+: 364.2020; found: 364.2003.
2-(Cyclohexylamino)-3-(4-fluorobenzyl)quinazolin-4(3H)-one (5f): White solid (68%), Mp 118-120 oC. [TLC control Rf(1) = 0.30, Rf(5f) = 0.60 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3435, 2930, 2854, 1659, 1557, 750, 663.
1H NMR (CDCl3, 400 MHz): δH = 8.17 (dd, 1H, Ja= 8.1 and Jb = 1.2 Hz), 7.61-7.57 (m, 1H), 7.38 (d, 1H,
J = 7.38 Hz), 7.20-7.16 (m, 1H), 7.06 (t, 2H, J = 8.6 Hz), 5.29 (s, 2H), 4.27 (d, 1H, J = 7.3 Hz), 4.00-3.94
(m, 1H), 1.90-1.86 (m, 2H), 1.52 (d, 3H, J = 10.3 Hz), 1.42-1.33 (m, 2H), 1.18-1.14 (m, 1H), 1.08-1.00
(m, 2H). 13C NMR (CDCl3, 100 MHz): δC = 163.7, 163.1, 161.3, 149.4, 148.9, 134.5, 131.1, 131.0, 128.4,
128.3, 127.3, 125.0, 122.5, 116.8, 116.4, 116.2, 49.8, 43.9, 32.6, 25.6, 24.3.
HR-MS (ESI+) m/z calculated for [C21H23FN3O]+ = [M+H]
+: 352.1820; found: 352.1804.
3-(2-Chlorobenzyl)-2-(cyclohexylamino)quinazolin-4(3H)-one (5g): White solid (72%), Mp 108-110 oC. [TLC control Rf(1) = 0.30, Rf(5g) = 0.70 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3386, 2927, 2854, 1656, 1558, 1472, 1344, 1215, 1065, 830, 755,
663.
1H NMR (CDCl3, 400 MHz): δH = 8.08-8.06 (m, 1H), 7.51-7.47 (m, 1H), 7.30 (dd, 2H, Ja= 16.9 and Jb =
8.1 Hz), 7.16-7.11 (m, 1H), 7.09-7.04 (m, 3H), 5.34 (s, 2H), 4.28 (d, 1H, J = 7.3 Hz), 3.89 (dtd, 1H, Ja =
10.1, Jb = 6.7 and Jc = 3.9 Hz), 1.82-1.78 (m, 2H), 1.47 (d, 3H, J = 8.8 Hz), 1.31-1.22 (m, 2H), 1.08-1.00
S5
(m, 3H). 13
C NMR (CDCl3, 100 MHz): δC = 163.2, 149.5, 148.5, 134.5, 132.6, 132.4, 129.6, 129.4, 128.2,
127.9, 127.3, 125.0, 122.4, 116.7, 50.1, 41.1, 32.7, 25.6, 24.5.
HR-MS (ESI+) m/z calculated for [C21H23ClN3O]+ = [M+H]
+: 368.1524; found: 368.1509.
3-(2-(1H-indol-2-yl)ethyl)-2-(cyclohexylamino)quinazolin-4(3H)-one (5h): Yellow solid (62%), Mp
108-110 oC. [TLC control Rf(1) = 0.30, Rf(5h) = 0.50 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3381, 2928, 2853, 1653, 1562, 1349, 1248, 1147, 1011, 891, 741,
663.
1H NMR (CDCl3, 400 MHz): δH = 8.40 (br s, 1H), 8.02 (d, 1H, J = 8.3 Hz), 7.54 (d, 1H, J = 7.3 Hz), 7.43-
7.39 (m, 1H), 7.26 (d, 1H, J = 7.8 Hz), 7.18 (d, 1H, J = 8.3 Hz), 7.13-7.09 (m, 1H), 7.07-6.99 (m, 2H),
6.77 (s, 1H), 4.17 (t, 2H, J = 6.1 Hz), 3.61 (d, 1H, J = 7.3 Hz), 3.44-3.41 (m, 1H), 3.15 (t, 2H, J = 6.1 Hz),
1.44-1.33 (m, 6H), 1.16-0.99 (m, 3H), 0.80-0.74 (m, 1H). 13
C NMR (CDCl3, 100 MHz): δC = 163.3,
149.6, 149.3, 136.7, 134.2, 126.8, 126.6, 124.8, 123.2, 122.8, 120.2, 118.0, 117.1, 111.9, 111.8, 49.7,
43.5, 31.9, 25.5, 24.8, 24.1.
HR-MS (ESI+) m/z calculated for [C24H27N4O]+ = [M+H]
+: 387.2179; found: 387.2162.
3-Benzyl-2-(tert-butylamino)quinazolin-4(3H)-one (5i):[1]
White solid (40%), Mp 110–112 oC. [TLC
control Rf(1) = 0.30, Rf(5i) = 0.60 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3435, 3032, 2961, 2925, 1672, 1584, 1567, 1477, 1362, 1208,
1148, 976, 766, 695.
1H NMR (CDCl3, 400 MHz): δH = 8.18 (dd, 1H, Ja = 8.1 and Jb = 1.2 Hz), 7.58-7.56 (m, 1H), 7.38-7.31
(m, 4H), 7.26 (d, 2H, J = 7.3 Hz), 7.19-7.15 (m, 1H), 5.3 (s, 2H), 4.32 (s, 1H), 1.32 (s, 9H). 13
C NMR
(CDCl3, 100 MHz): δC = 163.3, 149.1, 148.4, 135.5, 134.2, 129.3, 128.2, 127.3, 126.7, 125.3, 122.4,
116.9, 52.6, 44.9, 28.8.
HR-MS (ESI+) m/z calculated for [C19H22N3O]+ = [M+H]
+: 308.1757; found: 308.1744.
2-(Tert-butylamino)-3-cyclohexylquinazolin-4(3H)-one (5j): White solid (32%), Mp 82–84 oC. [TLC
control Rf(1) = 0.30, Rf(5j) = 0.60 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3496, 2930, 2856, 1669, 1568, 1519, 1478, 1361, 1205, 1137,
953, 764, 697.
1H NMR (CDCl3, 400 MHz): δH = 8.07 (dd, 1H, Ja = 8.2 and Jb = 1.2Hz), 7.54-7.50 (m, 1H), 7.34-7.26
(m, 1H), 7.12-7.08 (m, 1H), 5.14 (br s, 1H), 4.6 (br s, 1H), 2.16-2.04 (m, 2H), 1.94-1.70 (m, 6H), 1.60-
1.42 (m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 163.5, 148.7, 148.3, 133.9, 127.1, 124.8, 122.1, 52.6,
30.4, 29.3, 26.6, 25.7.
HR-MS (ESI+) m/z calculated for [C18H26N3O]+ = [M+H]
+: 300.2070; found: 300.2057.
3-(2-Bromophenyl)-2-(cyclohexylamino)quinazolin-4(3H)-one (5k): White solid (48%), Mp 162-164 oC. [TLC control Rf(1) = 0.30, Rf(5k) = 0.50 (petroleum ether/ethyl acetate 8:2, UV detection)].
S6
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3288, 2920, 2851, 1735, 1631, 1602, 1567, 1474, 1329, 1231,
1119, 1020, 957, 758, 648.
1H NMR (CDCl3, 400 MHz): δH = 8.13 (dd, 1H, Ja = 7.8 and Jb =1 Hz), 7.82 (dd, 1H, Ja = 8.1 and Jb = 1.2
Hz), 7.63-7.59 (m, 1H), 7.56-7.52 (m, 1H), 7.44-7.37 (m, 3H), 7.18-7.14 (m, 1H), 4.07-4.02 (m, 1H), 3.71
(d, 1H, J = 7.3Hz), 2.04-1.92 (m, 2H), 1.70-1.57 (m, 3H), 1.45-1.31 (m, 3H), 1.18-1.02 (m, 2H). 13
C
NMR (CDCl3, 100 MHz): δC = 162.0, 149.8, 147.9, 134.7, 134.5, 134.3, 131.4, 130.9, 129.5, 127.3, 125.0,
123.6, 122.4, 117.4, 49.8, 32.9, 32.8, 29.7, 28.8, 26.4, 25.6, 24.6, 24.5.
HR-MS (ESI+) m/z calculated for [C20H21BrN3O]+ = [M+H]
+: 398.0863; found: 398.0879.
2-(Cyclohexylamino)-3-phenylquinazolin-4(3H)-one (5l): White solid (35%), Mp 158–160 oC. [TLC
control Rf(1) = 0.30, Rf(5l) = 0.80 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3291, 2921, 2853, 1740, 1601, 1475, 1049, 759, 686.
1H NMR (CDCl3, 400 MHz): δH = 8.01 (dd, 1H, Ja = 8.1 and Jb =1.2 Hz), 7.69-7.58 (m, 2H), 7.42-7.23
(m, 2H), 7.14 (m, 1H), 4.90 (br s, 1H), 3.81 (m, 1H), 2.06 (dd, 1H, Ja = 12.2 and Jb = 2.9 Hz), 1.77-1.72
(m, 3H), 1.65-1.61 (m, 1H), 1.48-1.37 (m, 2H), 1.30-1.18 (m, 3H). 13
C NMR (CDCl3, 100 MHz): δC =
160.1, 150.6, 136.6, 128.7, 124.2, 123.4, 119.9, 113.2, 50.2, 32.9, 25.4, 24.6.
HR-MS (ESI+) m/z calculated for [C20H22N3O]+ = [M+H]
+: 320.1757; found: 320.1739.
3-Benzyl-6-chloro-2-(cyclohexylamino)quinazolin-4(3H)-one (5m):[1]
White solid (75%), Mp 124-126 oC. [TLC control Rf(1) = 0.30, Rf(5m) = 0.70 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3324, 3059, 2921, 1627, 1584, 1384, 1230, 1198, 1065, 951, 756,
640.
1H NMR (CDCl3, 400 MHz): δH = 8.13 (d, 1H, J = 2.4 HZ), 7.5 (dd, 1H, Ja = 8.8 and Jb = 2.4 Hz), 7.38-
7.24 (m, 6H), 5.3 (s, 1H), 4.39 (d, 1H, J = 7.3 Hz), 3.93-3.90 (m, 1H), 1.81 (dd, 2H, Ja = 8.6 and Jb = 3.7
Hz), 1.53-1.46 (m, 3H), 1.37-1.28 (m, 4H), 1.05-0.97 (m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 162.2,
149.3, 148.1, 135.0, 134.6, 129.5, 128.4, 127.6, 126.7, 126.6, 126.5, 117.7, 49.8, 44.7, 32.5, 29.7, 25.5,
24.2.
HR-MS (ESI+) m/z calculated for [C21H23ClN3O]+ = [M+H]
+: 368.1524; found: 365.1518.
6-chloro-2-(Cyclohexylamino)-3-(4-methoxybenzyl)quinazolin-4(3H)-one (5n): White solid (72%),
Mp 98-100 oC. [TLC control Rf(1) = 0.30, Rf(5n) = 0.70 (petroleum ether/ethyl acetate 8:2, UV
detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3321, 3057, 2921, 1629, 1574, 1517, 1482, 1381, 1230, 1247,
1188, 1025, 951, 761, 643.
1H NMR (CDCl3, 400 MHz): δH = 8.12 (d, 1H, J = 2.4 Hz), 7.48 (dd, 1H, Ja = 8.8 and Jb = 2.4 Hz), 7.30-
7.26 (m, 1H), 7.19 (d, 2H, J = 8.3 Hz), 6.88 (d, 2H, J = 8.8 Hz), 5.22 (s, 2H), 4.47 (d, 1H, J = 6.8 Hz),
3.93-3.89 (m, 1H), 3.78 (s, 3H), 1.85 (dd, 2H, Ja = 8.3 and Jb = 3.9 Hz), 1.53-1.51 (m, 3H), 1.39-1.29 (m,
S7
3H), 1.08-0.99 (m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 162.2, 159.6, 149.4, 148.0, 134.6, 128.0,
127.8, 126.6, 126.5, 117.8, 114.8, 55.4, 49.9, 44.3, 32.6, 29.8, 25.5, 24.3.
HR-MS (ESI+) m/z calculated for [C22H25ClN3O2]+ = [M+H]
+: 398.1630; found: 398.1628.
6-Chloro-2-(Cyclohexylamino)-3-(4-methylbenzyl)quinazolin-4(3H)-one (5o): White solid (70%), Mp
136-138 oC. [TLC control Rf(1) = 0.30, Rf(5o) = 0.60 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3421, 2928, 2854, 16160, 1558, 1472, 1365, 1214, 1067, 896, 754,
663.
1H NMR (CDCl3, 400 MHz): δH = 8.13 (d, 1H, J = 2.4 Hz), 7.50-7.48 (m, 1H), 7.30-7.26 (m, 1H), 7.17-
7.12 (m, 5H), 5.25 (s, 2H), 4.44 (d, 1H, J = 6.8 Hz), 3.91 (dt, 1H, Ja = 6.6 and Jb = 3.1 Hz), 2.33 (s, 3H),
1.33 (dd, 2H, Ja = 8.6 and Jb = 3.7 Hz), 1.5 (d, 4H, J = 10.3 Hz), 1.39-1.29 (m, 2H), 1.18-1.13 (m, 1H),
1.07-1.00 (m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 162.2, 149.4, 148.1, 138.2, 134.6, 131.8, 130.1,
127.5, 126.6, 126.5, 126.4, 117.7, 117.8, 49.9, 44.6, 32.5, 25.5, 24.2, 21.1.
HR-MS (ESI+) m/z calculated for [C22H25ClN3O]+ = [M+H]
+: 382.1681; found: 398.1680.
6-Chloro-2-(Cyclohexylamino)-3-(3,4-dimethoxybenzyl)quinazolin-4(3H)-one (5p) : White solid
(72%), Mp 124-126 oC. [TLC control Rf(1) = 0.30, Rf(5p) = 0.60 (petroleum ether/ethyl acetate 8:2, UV
detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3416, 3018, 2932, 2855, 1665, 1561, 1473, 1260, 1214, 1140,
1025, 746, 664.
1H NMR (CDCl3, 400 MHz): δH = 8.1 (d, 1H, J = 2.4 Hz), 7.47 (dd, 1H, Ja = 8.8 and Jb = 2.4 Hz), 7.29-
7.26 (m, 1H), 6.83-6.76 (m, 3H), 5.21 (s, 2H), 4.56 (d, 1H, J =6.8 Hz), 3.94-3.87 (m, 1H), 3.85 (s, 3H),
3.80 (s, 3H), 1.85 (d, 2H, J = 8.8 Hz), 1.53 (d, 3H, J = 8.3 Hz), 1.39-1.30 (m, 2H), 1.23-1.00 (m, 3H).
13C NMR (CDCl3, 100 MHz): δC = 162.3, 150.0, 149.5, 149.1, 148.1, 134.6, 127.5, 126.6, 126.5, 119.0,
117.7, 111.5, 109.7, 56.0, 55.9, 49.9, 44.7, 32.6, 25.5, 24.5.
HR-MS (ESI+) m/z calculated for [C23H27ClN3O3]+ = [M+H]
+: 428.1735; found: 428.1735.
6-Chloro-2-(Cyclohexylamino)-3-(4-fluorobenzyl)quinazolin-4(3H)-one (5q): White solid (68%), Mp
124-126 oC. [TLC control Rf(1) = 0.30, Rf(5q) = 0.70 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3435, 2930, 2854, 1659, 1557, 1310, 1129, 1066, 894, 750, 663.
1H NMR (CDCl3, 400 MHz): δH = 8.1 (d, 1H, J = 2.4 Hz), 7.50-7.48 (m, 1H), 7.30 (d, 1H, J = 8.8 Hz),
7.26-7.21 (m, 2H), 7.05 (t, 2H, J = 8.6 Hz), 5.25 (s, 2H), 4.32 (d, 1H, J = 6.8 Hz), 3.96-3.89 (m, 1H), 1.86
(dd, 3H, Ja = 12.0 and Jb = 3.2 Hz), 1.52 (dd, 3H, Ja = 9.0 and Jb = 4.4 Hz), 1.41-1.30 (m, 2H), 1.19-1.13
(m, 1H), 1.07-0.98 (m, 2H). 13
C NMR (CDCl3, 100 MHz): δC = 163.8, 162.1, 149.0, 148.0, 134.7, 130.8,
130.7, 128.4, 128.3, 127.6, 126.7, 126.4, 117.6, 116.5, 116.3, 50.0, 44.0, 32.6, 25.5, 24.3.
HR-MS (ESI+) m/z calculated for [C21H22ClFN3O]+ = [M+H]
+: 386.1430; found: 386.1431.
S8
6-chloro-3-(2-Chlorobenzyl)-2-(cyclohexylamino)quinazolin-4(3H)-one (5r): White solid (72%), Mp
120-122 oC. [TLC control Rf(1) = 0.30, Rf(5r) = 0.50 (petroleum ether/ethyl acetate 8:2, UV detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3431, 2923, 2852, 1672, 1559, 1472, 1329, 1135, 1033, 824, 745,
622.
1H NMR (CDCl3, 400 MHz): δH = 8.12 (d, 1H, J = 2 Hz), 7.51 (dd, 1H, Ja = 8.8 and Jb = 2.4 Hz), 7.43 (d,
1H, J = 7.8 Hz), 7.31-7.26 (m, 2H), 7.24-7.19 (m, 2H), 7.13-7.11 (m, 1H), 5.42 (s, 2H), 4.42 (d, 1H, J =
6.8 Hz), 3.95 (dtd, 1H, Ja = 10.1, Jb = 6.1 and Jc = 3.9 Hz), 1.89-1.86 (m, 2H), 1.57 (d, 3H, J = 8.3 Hz),
1.40-1.30 (m, 2H), 1.19-1.04 (m, 3H). 13
C NMR (CDCl3, 100 MHz): δC = 162.3, 148.6, 134.8, 132.4,
132.3, 129.7, 129.5, 128.2, 128.0, 127.6, 126.7, 126.5, 117.5, 50.2, 41.2, 32.6, 25.5, 24.5.
HR-MS (ESI+) m/z calculated for [C21H22Cl2N3O]+ = [M+H]
+: 402.1134; found: 402.1134.
6-Chloro-3-(2-(1H-indol-2-yl)ethyl)-2-(cyclohexylamino)quinazolin-4(3H)-one (5s): Pale yellow
(62%), Mp 142-144 oC. [TLC control Rf(1) = 0.30, Rf(5m) = 0.50 (petroleum ether/ethyl acetate 8:2, UV
detection)].
IR (MIR-ATR, 4000–600 cm-1
): ʋmax = 3443, 3373, 2928, 2854, 1669, 1558, 1473, 1344, 1217, 1131,
1067, 896, 749, 662.
1H NMR (CDCl3, 400 MHz): δH = 8.28 (br s, 1H), 8.08 (d, 1H, J = 2.4 Hz), 7.65 (d, 1H, J = 7.8 Hz),
7.45-7.38 (m, 2H), 7.26-7.15 (m, 3H), 6.91 (d, 1H, J = 2Hz), 4.26 (t, 2H, J = 6.1 Hz), 3.74 (d, 1H, J = 7.3
Hz), 3.5 (dtt, 1H, Ja = 10.9, Jb = 7.1 and Jc = 3.6 Hz), 3.26 (t, 2H, J = 6.1 Hz), 1.52-1.41 (m, 5H), 1.26-
1.09 (m, 4H). 13
C NMR (CDCl3, 100 MHz): δC = 162.2, 149.3, 147.9, 136.7, 134.4, 127.3, 126.5, 126.0,
123.1, 122.9, 120.4, 118.0, 117.9, 112.0, 111.9,49.8, 43.6, 31.9, 25.5, 24.8, 24.1.
HR-MS (ESI+) m/z calculated for [C24H26ClN4O]+ = [M+H]
+: 421.1790; found: 421.1788.
S9
Copies of 1H,
13C NMR spectra of all compounds (5a-5s)
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
3.712.543.232.281.030.992.081.132.464.221.091.00
8.1
975
8.1
779
8.1
743
7.5
827
7.3
871
7.3
663
7.3
566
7.3
382
7.3
199
7.3
028
7.2
783
7.2
600
7.1
720
5.3
227
4.3
706
4.3
535
3.9
941
3.9
709
3.9
611
3.9
526
3.9
464
3.9
281
2.1
962
1.8
454
1.8
246
1.8
148
1.4
970
1.4
616
1.3
614
1.3
528
1.3
345
1.3
271
1.1
426
1.0
350
1.0
094
0.0
034
1H NMR (400MHz) spectrum of compound 5a in CDCl3
S10
160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163.
3943
149.
6940
149.
3951
135.
5562
134.
5865
129.
5993
128.
4837
127.
5723
126.
8432
125.
2026
122.
6434
117.
1312
77.6
343
77.3
208
77.0
000
49.9
566
44.8
090
32.7
274
25.8
006
24.4
299
13C NMR (100MHz) spectrum of compound 5a in CDCl3.
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
2.181.132.333.182.143.181.031.032.082.061.082.001.041.061.00
8.1
98.1
98.1
7
7.5
87.5
67.5
67.3
87.3
67.2
27.2
07.1
97.1
77.1
56.8
96.8
7
5.2
6
4.4
54.4
33.9
93.9
83.9
73.9
63.9
53.9
53.9
33.7
9
1.8
81.8
61.8
61.5
41.5
31.5
21.3
81.3
81.3
61.3
5
1.0
61.0
4
1H NMR (400MHz) spectrum of compound 5b in CDCl3
S11
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163.4
1
159.7
5
149.6
8149.5
2
134.5
1128.2
1127.5
3127.4
3125.1
7122.5
8117.2
0114.9
6
77.6
477.3
277.0
0
55.5
7
49.9
9
44.3
5
32.8
1
25.8
324.5
0
13C NMR (100MHz) spectrum of compound 5b in CDCl3.
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
2.151.172.303.272.533.221.031.002.135.251.041.051.00
8.1
926
8.1
730
7.5
998
7.5
961
7.5
790
7.5
619
7.5
582
7.3
798
7.3
590
7.1
867
4.4
060
4.3
889
3.9
929
3.9
831
3.9
660
3.9
599
3.9
501
3.9
416
3.9
354
2.3
318
1.8
747
1.8
662
1.8
442
1.8
356
1.5
166
1.4
909
1.3
724
1.3
638
1.3
467
1.3
381
1.0
485
1.0
228
1H NMR (400MHz) spectrum of compound 5c in CDCl3.
S12
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163.4
454
149.7
013
149.5
409
138.2
978
134.5
573
132.4
647
130.2
555
127.5
942
126.8
650
125.1
953
122.6
215
117.2
041
77.6
343
77.3
135
77.0
000
50.0
077
44.6
996
32.8
003
25.8
663
24.5
028
21.3
967
13C NMR (100MHz) spectrum of compound 5c in CDCl3.
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
2.782.833.003.562.862.832.901.080.952.003.001.011.041.000.97
8.1
767
8.1
596
7.5
912
7.5
741
7.5
558
7.5
521
7.3
724
7.3
517
7.2
600
7.1
818
7.1
622
7.1
439
6.8
285
6.7
882
5.2
408
4.5
172
4.4
989
3.9
636
3.9
562
3.9
477
3.9
391
3.9
318
3.8
597
3.8
377
3.8
132
2.1
864
1.8
808
1.8
600
1.8
539
1.5
435
1.5
227
1.3
797
1.3
711
1.3
528
1.3
455
1.2
452
1.0
888
1.0
582
1.0
326
0.8
676
-0.0
112
1H NMR (400MHz) spectrum of compound 5d in CDCl3.
S13
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163.4
745
150.1
753
149.6
503
149.3
003
134.5
865
128.0
754
127.5
796
125.1
953
122.6
215
119.2
457
117.1
676
111.6
919
109.9
566
77.6
343
77.3
208
77.0
000
56.2
417
56.2
199
49.9
931
44.8
528
32.8
440
25.8
371
24.5
028
13C NMR (100MHz) spectrum of compound 5d in CDCl3.
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
2.161.122.333.250.522.193.251.050.992.111.012.141.061.351.011.071.00
8.1
88.1
88.1
68.1
67.5
87.3
87.3
57.2
77.2
57.1
66.8
66.8
56.8
46.8
36.8
0
4.4
04.3
93.9
93.9
73.9
63.9
53.9
43.9
33.7
6
1.8
61.8
51.8
31.8
21.5
11.4
91.4
81.3
71.3
41.3
4
1.0
51.0
3
1H NMR (400MHz) spectrum of compound 5e in CDCl3.
S14
160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163
.10
160
.48
149
.42
149
.21
136
.95
134
.32
130
.42
127
.33
124
.92
122
.37
118
.76
116
.85
113
.76
112
.18
77.
3277.
2077.
0076.
68
55.
31
49.
70
44.
60
32.
47
25.
5524.
15
13C NMR (100MHz) spectrum of compound 5e in CDCl3.
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
2.151.152.363.162.161.020.992.082.101.082.291.041.051.00
8.1
88.1
88.1
68.1
67.5
97.3
97.3
7
7.2
67.2
67.2
47.1
87.0
87.0
67.0
4
5.2
9
4.2
74.2
64.0
03.9
93.9
83.9
73.9
63.9
5
1.9
01.8
91.8
71.8
61.5
41.5
11.3
91.3
81.3
61.3
61.0
51.0
2
1H NMR (400MHz) spectrum of compound 5f in CDCl3.
S15
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10
Chemical Shift (ppm)
163
.70
163
.07
161
.24
149
.34
148
.90
134
.43
131
.06
128
.37
128
.29
127
.27
124
.97
122
.50
116
.80
116
.41
116
.19
77.
3277.
0076.
69
49.
78
43.
89
32.
60
25.
5224.
25
13C NMR (100MHz) spectrum of compound 5f in CDCl3.
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
3.212.293.152.241.030.982.042.831.462.041.051.01
8.0
88.0
6
7.4
97.3
37.3
17.2
97.2
77.1
67.1
47.0
97.0
77.0
5
5.3
4
4.2
94.2
7
3.9
03.9
03.8
93.8
83.8
73.8
6
1.8
21.8
11.7
91.7
81.4
81.4
61.2
81.2
71.2
51.2
40.9
80.9
50.9
3
1H NMR (400MHz) spectrum of compound 5g in CDCl3.
S16
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163
.42
149
.72
148
.74
134
.73
132
.81
132
.63
129
.85
129
.62
128
.40
128
.10
127
.57
125
.22
122
.66
116
.93
77.
6377.
3277.
00
50.
32
41.
35
32.
91
25.
8024.
76
13C NMR (100MHz) spectrum of compound 5g in CDCl3.
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
1.163.125.531.961.040.982.030.932.121.400.960.991.111.061.001.00
8.4
08.0
38.0
17.5
57.5
47.4
17.2
77.2
57.1
37.1
17.0
57.0
37.0
1
6.7
7
4.1
84.1
74.1
53.6
23.6
03.4
43.4
33.4
23.4
23.4
13.1
63.1
53.1
3
1.4
41.4
11.3
61.3
31.1
31.0
81.0
51.0
20.9
90.7
70.7
60.0
90.0
60.0
3
1H NMR (400MHz) spectrum of compound 5h in CDCl3.
S17
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162.8
6
149.2
4148.9
4
136.3
4133.7
8126.4
3126.1
7124.4
2122.8
2122.3
5121.8
8119.8
4117.6
3116.6
6111.5
5111.4
8
77.0
076.8
876.6
976.3
7
49.2
8
43.0
9
31.5
325.1
424.5
424.4
123.7
3
13C NMR (100MHz) spectrum of compound 5h in CDCl3.
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
10.101.032.191.122.524.281.081.01
8.1
816
8.1
791
8.1
620
7.5
668
7.3
724
7.3
504
7.3
321
7.3
187
7.3
003
7.2
600
7.2
417
7.1
818
7.1
622
5.2
885
4.3
082
1.6
083
1.3
846
1.3
418
1.3
064
1.2
660
1.2
562
1.2
391
0.8
639
0.8
456
0.8
370
0.0
560
-0.0
173
1H NMR (400MHz) spectrum of compound 5i in CDCl3.
S18
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163.
28
149.
0414
8.43
135.
4513
4.18
129.
3112
8.24
127.
2412
6.69
125.
2512
2.42
116.
93
77.3
177
.00
76.6
8
52.5
7
44.8
6
28.8
0
13C NMR (100MHz) spectrum of compound 5i in CDCl3.
S19
8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
3.491.565.821.930.930.051.061.411.041.00
8.0
850
8.0
814
8.0
642
8.0
618
7.5
252
7.5
081
7.5
045
7.3
199
7.2
991
7.2
600
7.1
256
7.1
060
7.0
877
5.1
382
4.5
906
2.0
862
1.9
444
1.9
114
1.8
759
1.8
466
1.8
050
1.7
708
1.5
471
1.5
178
1.4
848
1.2
550
1.1
890
1.1
230
0.8
786
0.8
297
0.0
878
0.0
719
0.0
462
-0.0
015
1H NMR (400MHz) spectrum of compound 5j in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
163
.18
148
.35
147
.96
133
.52
126
.75
124
.42
121
.78
77.
0076.
6976.
37
52.
28
30.
0228.
9426.
2425.
34
13C NMR (100MHz) spectrum of compound 5j in CDCl3.
S20
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
3.203.264.822.360.920.961.153.011.211.120.941.01
8.1
400
8.1
376
8.1
205
7.8
320
7.8
125
7.5
485
7.5
448
7.4
458
7.4
250
7.4
226
7.3
920
7.2
600
7.1
647
4.0
711
4.0
613
4.0
565
4.0
467
4.0
369
4.0
308
4.0
210
3.7
228
3.7
044
2.2
365
2.0
104
1.8
992
1.5
960
1.5
728
1.4
213
1.4
115
1.3
944
1.3
870
1.2
831
1.2
538
1.1
218
1.0
888
1.0
582
0.8
786
-0.0
015
1H NMR (400MHz) spectrum of compound 5k in CDCl3.
160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162.3
225
150.1
242
148.1
337
135.0
167
134.7
834
134.6
157
131.7
065
131.1
888
129.7
888
127.5
942
125.2
974
123.8
829
122.7
236
117.6
343
77.6
343
77.5
177
77.3
135
77.0
000
50.1
244
33.1
794
33.1
211
29.9
858
29.1
036
26.6
975
25.8
444
24.9
257
24.8
236
13C NMR (100MHz) spectrum of compound 5k in CDCl3.
S21
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
3.392.311.192.562.241.040.851.161.480.291.040.271.01
8.0
227
8.0
190
8.0
019
7.9
995
7.6
279
7.6
071
7.5
900
7.4
030
7.2
600
7.2
368
7.1
622
7.1
427
7.1
243
4.9
047
3.8
462
3.8
206
3.8
108
3.8
010
3.7
766
2.0
788
2.0
715
2.0
483
2.0
409
1.7
708
1.7
464
1.7
366
1.4
445
1.4
139
1.2
721
1.2
489
1.2
428
1.2
122
1H NMR (400MHz) spectrum of compound 5l in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10
Chemical Shift (ppm)
160.3
685
150.9
335
136.9
416
129.4
389
129.0
305
125.0
203
124.4
881
123.7
006
120.1
789
113.4
491
77.6
343
77.3
208
77.0
000
50.4
889
33.2
305
25.7
350
24.9
184
13C NMR (100MHz) spectrum of compound 5l in CDCl3.
S22
9 8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
1.062.273.963.342.501.000.982.146.361.080.88
8.1
315
8.1
254
7.5
118
7.4
898
7.3
651
7.3
468
7.3
321
7.3
126
7.2
906
7.2
600
7.2
441
5.2
995
4.3
962
4.3
779
3.9
354
3.9
293
3.9
208
3.9
122
3.9
061
1.8
270
1.8
050
1.7
965
1.4
983
1.4
628
1.3
516
1.3
430
1.3
259
1.3
174
1.2
514
1.0
252
0.9
996
0.8
492
-0.0
039
1H NMR (400MHz) spectrum of compound 5m in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162
.4829
149
.5190
148
.3233
135
.2281
134
.9146
129
.7159
128
.6660
127
.8275
126
.8505
126
.7630
117
.9843
77.
6343
77.
3135
77.
0000
50.
1098
45.
0059
32.
7274
29.
9786
25.
7861
24.
4445
13C NMR (100MHz) spectrum of compound 5m in CDCl3.
S23
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
2.733.393.492.563.211.000.962.052.142.071.301.151.00
8.1
193
8.1
131
7.4
983
7.4
922
7.4
763
7.4
702
7.3
016
7.2
796
7.2
600
7.1
964
7.1
757
6.8
884
6.8
664
5.2
225
4.4
806
4.4
635
3.9
306
3.9
232
3.9
147
3.9
061
3.8
988
3.7
814
3.7
521
1.8
613
1.8
393
1.8
307
1.5
386
1.5
227
1.5
117
1.3
663
1.3
394
1.3
320
1.2
514
1.0
509
1.0
252
0.8
737
-0.0
039
1H NMR (400MHz) spectrum of compound 5n in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162
.1548
159
.5154
149
.3003
147
.9733
134
.4844
127
.9004
127
.3973
126
.7265
126
.5515
126
.3692
117
.7072
114
.7105
77.
3208
77.
0000
76.
6865
55.
2720
49.
7962
44.
2038
32.
4722
29.
6359
25.
4725
24.
1893
13C NMR (100MHz) spectrum of compound 5n in CDCl3.
S24
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
2.401.242.653.522.363.431.121.082.324.571.471.151.00
8.1
303
8.1
241
7.5
081
7.5
020
7.4
861
7.4
800
7.3
077
7.2
869
7.2
600
7.1
549
7.1
512
5.2
518
4.4
451
4.4
280
3.9
306
3.9
232
3.9
147
3.9
061
3.8
988
2.3
331
1.8
490
1.8
393
1.8
270
1.8
185
1.5
166
1.4
909
1.3
638
1.3
553
1.3
369
1.3
284
1.0
424
1.0
167
1H NMR (400MHz) spectrum of compound 5o in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162
.5048
149
.6430
148
.3233
138
.4873
134
.8563
132
.1148
130
.3430
127
.7692
126
.8505
126
.7630
118
.0499
77.
6343
77.
5177
77.
3208
77.
0000
50.
1389
44.
8528
32.
7711
25.
8225
24.
4955
21.
4186
13C NMR (100MHz) spectrum of compound 5o in CDCl3.
S25
9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
3.602.192.912.002.672.870.850.931.922.931.230.990.86
8.1
046
8.0
985
7.4
886
7.4
825
7.4
666
7.4
605
7.2
930
7.2
710
7.2
600
6.8
347
6.8
151
6.7
907
6.7
613
5.2
066
4.5
637
4.5
466
3.9
220
3.9
159
3.9
061
3.8
988
3.8
914
3.8
743
3.8
499
3.8
034
1.8
613
1.8
393
1.5
361
1.5
154
1.3
626
1.3
553
1.3
357
1.3
296
1.2
330
1.1
536
1.0
509
1.0
252
0.8
297
-0.0
210
1H NMR (400MHz) spectrum of compound 5p in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162
.4684
150
.1680
149
.6940
149
.3513
148
.2649
134
.7980
127
.6671
126
.8578
126
.6682
119
.2165
117
.9551
111
.6700
109
.8982
77.
6343
77.
5177
77.
3135
77.
0000
56.
2053
56.
1834
50.
0952
44.
9475
32.
7711
25.
7569
24.
4663
13C NMR (100MHz) spectrum of compound 5p in CDCl3.
S26
8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
2.321.232.613.572.601.131.092.292.252.401.231.121.00
8.1
046
8.0
985
7.5
069
7.4
849
7.3
077
7.2
857
7.2
539
7.2
404
7.2
331
7.2
197
7.0
730
7.0
522
5.2
530
4.3
327
4.3
156
3.9
648
3.9
489
3.9
403
3.9
318
3.9
232
3.9
159
1.8
747
1.8
674
1.8
454
1.8
368
1.5
374
1.5
276
1.5
154
1.5
044
1.3
736
1.3
467
1.0
448
1.0
191
0.9
874
-0.0
076
1H NMR (400MHz) spectrum of compound 5q in CDCl3.
160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
164
.0141
162
.3882
161
.5569
149
.2638
148
.2431
134
.9657
130
.9992
130
.9700
128
.6514
128
.5712
127
.8931
126
.9452
126
.6755
117
.9041
116
.7593
116
.5406
77.
6343
77.
5250
77.
3208
77.
0000
50.
2046
44.
2986
32.
8294
25.
7496
24.
5393
13C NMR (100MHz) spectrum of compound 5q in CDCl3.
S27
8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0
Chemical Shift (ppm)
3.602.673.552.391.141.072.301.101.562.161.131.151.00
8.1
205
8.1
156
7.5
216
7.4
996
7.4
935
7.4
421
7.4
226
7.3
187
7.2
967
7.2
600
7.2
099
7.1
378
5.4
181
4.4
256
4.4
085
3.9
807
3.9
636
3.9
550
3.9
464
3.9
379
3.9
293
3.9
220
1.8
955
1.8
833
1.8
723
1.8
649
1.5
838
1.5
630
1.3
699
1.3
626
1.3
430
1.3
345
1.1
010
1.0
754
1.0
485
-0.0
027
1H NMR (400MHz) spectrum of compound 5r in CDCl3.
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
162
.5413
148
.8628
148
.3524
135
.0604
132
.6689
132
.5231
129
.9638
129
.8180
128
.4545
128
.2212
127
.8494
126
.9307
126
.7557
117
.7947
77.
6343
77.
3135
77.
0000
50.
5035
41.
4842
32.
9169
25.
7934
24.
8017
13C NMR (100MHz) spectrum of compound 5r in CDCl3.
S28
8 7 6 5 4 3 2 1 0
Chemical Shift (ppm)
1.353.595.561.990.960.932.000.973.482.081.020.950.97
8.2
806
8.0
814
8.0
752
7.6
352
7.4
470
7.4
311
7.4
250
7.4
006
7.3
810
7.2
453
7.2
209
7.1
989
7.1
720
6.9
141
6.9
092
6.5
939
4.2
789
4.2
642
4.2
483
3.7
497
3.7
313
3.5
138
3.5
040
3.4
954
3.4
857
3.4
771
3.2
718
3.2
571
3.2
412
2.0
336
1.7
268
1.5
276
1.4
897
1.4
836
1.4
494
1.2
440
1.1
817
1.1
597
1.1
524
1.1
279
0.8
773
0.8
480
0.1
831
0.1
574
0.1
281
0.1
012
-0.0
112
1H NMR (400MHz) spectrum of compound 5s in CDCl3
170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0
Chemical Shift (ppm)
161
.8559
149
.3513
147
.5650
136
.3218
134
.0324
126
.9598
126
.1505
125
.6328
122
.7236
122
.5122
119
.9894
117
.6270
117
.5176
111
.6190
111
.4732
77.
0000
76.
6792
76.
3657
49.
3806
43.
2341
31.
4951
25.
1153
24.
5611
24.
4153
23.
6716
13C NMR (100MHz) spectrum of compound 5s in CDCl3
S29
References:
1. Ji. F, Lv. M-F, Yi. W-B and Cai. C., One-pot synthesis of 2-amino-4(3H)-quinazolinones via ring-opening of isatoic anhydride and
palladium-catalyzed oxidative isocyanide-insertion. Org. Biomol. Chem., 2014, 12, 5766