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Flavonoid compound from Maclura Pomifera and Maclura tinctoria Jurnal 1 : “Flavonoid from Maclura tinctoria From the first journal we explaining about the main structure of flavonoid . The chemical structures of compounds 1-5 were determined by comparison of their melting points and UV spectra as well as other spectroscopic data with literature values. Compounds 6 and 7, structure identifcation is the subject of this study. The FABMS of 6 suggesting the molecular formula C 21 H 22 O 11 . The UV spectrum showed a major absorbance at 286 nm characteristic of a flavanone skeleton. A singlet at d 12.14, which disappeared on deuterium exchange, indicated a C-5 hydroxyl.The proton at C-2 appeared as a double doublet at d 5.64 (J = 13 and 3 Hz). The equatorial proton of C-3 appeared at d 2.64 as a double doublet. In the 13C NMR spectrum, the signals for C-2 and C-3 appeared at d 74.2 and 41.5, respectively. A two-proton signal at d 5.88 appearing as a singlet was assigned to H-6 and H-8. A two-proton signal at d 6.56 appearing as a multiplet was assigned to H-3' and H-5' and a one-proton signal at d 7.3 was assigned to H-6'. These 1H NMR data indicated that the A ring was hydroxylated at positions 5 and 7, while the B ring at 2' and 4'. The 13C NMR data further established the hydroxylation at C-2' since the chemical shift of C-2 resonated at d 74.1 indicative of the presence of a 2'- oxysubstituent. 1H NMR resonances at d 3.5±3.2 and six signals in the 13C NMR spectrum at 100.9±61.6 indicated the presence of an O-sugar moiety. A loss of 162 mass units from the molecular ion in the FABMS and a signal at d 61.6, represent a CH2 group suggested a hexose moiety. The anomeric glucose proton appeared at d 4.8 as a doublet with a coupling constant for H-10/H-20 of J = 7.5 Hz, indicating a b-linkage of the glucose unit to the aglycone. The above data with the 13C NMR spectrum (DEPT sequence) were found to be consistent with a flavanone glucoside structure. The glucose unit was placed on the C-4' position based on the value of the proton of the anomeric carbon (d 4.8) and the HMBC correlation observed between the anomeric proton of glucose and carbon 4'. Thus, 6 was assigned as 5,7,2 '- trihydroxyflavanone4'-O-b-D-glucoside. Compound 7, was named C 23 H 24 O 11 . An isoflavone skeleton was suggested by UV absorbance at 259 nm in the proton 1H NMR spectrum of a one proton singlet at d 8.22. The UV value of band II (ring A) at d 259 nm was about 6 nm nearer in the UV than the equivalent 5-hydroxyisoflavone glycoside (1a). The 13CNMR spectrum provided additional conformation of the lack of a free 5-OH group as the carbonyl signal of 7 resonated at d 175.1 instead of 180.0 as shown in the spectrum of compound 1a. The 7-hydroxyl group was free as indicated by a bathochromic shift in band II (ring A) of 11 nm upon the addition of sodium acetate. The 1H NMR spectrum showed a one proton singlet at d 6.44 indicating that ring A was trisubstituted. From HMBC data

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Page 1: Resume Kabah 2 Fix

Flavonoid compound from Maclura Pomifera and Maclura tinctoria

Jurnal 1 : “Flavonoid from Maclura tinctoriaFrom the first journal we explaining about the main structure of flavonoid . The chemical structures of

compounds 1-5 were determined by comparison of their melting points and UV spectra as well as other spectroscopic data with literature values. Compounds 6 and 7, structure identifcation is the subject of this study. The FABMS of 6 suggesting the molecular formula C21H22O11. The UV spectrum showed a major absorbance at 286 nm characteristic of a flavanone skeleton. A singlet at d 12.14, which disappeared on deuterium exchange, indicated a C-5 hydroxyl.The proton at C-2 appeared as a double doublet at d 5.64 (J = 13 and 3 Hz). The equatorial proton of C-3 appeared at d 2.64 as a double doublet. In the 13C NMR spectrum, the signals for C-2 and C-3 appeared at d 74.2 and 41.5, respectively. A two-proton signal at d 5.88 appearing as a singlet was assigned to H-6 and H-8. A two-proton signal at d 6.56 appearing as a multiplet was assigned to H-3' and H-5' and a one-proton signal at d 7.3 was assigned to H-6'. These 1H NMR data indicated that the A ring was hydroxylated at positions 5 and 7, while the B ring at 2' and 4'. The 13C NMR data further established the hydroxylation at C-2' since the chemical shift of C-2 resonated at d 74.1 indicative of the presence of a 2'-oxysubstituent. 1H NMR resonances at d 3.5±3.2 and six signals in the 13C NMR spectrum at 100.9±61.6 indicated the presence of an O-sugar moiety. A loss of 162 mass units from the molecular ion in the FABMS and a signal at d 61.6, represent a CH2 group suggested a hexose moiety. The anomeric glucose proton appeared at d 4.8 as a doublet with a coupling constant for H-10/H-20 of J = 7.5 Hz, indicating a b-linkage of the glucose unit to the aglycone. The above data with the 13C NMR spectrum (DEPT sequence) were found to be consistent with a flavanone glucoside structure. The glucose unit was placed on the C-4' position based on the value of the proton of the anomeric carbon (d 4.8) and the HMBC correlation observed between the anomeric proton of glucose and carbon 4'. Thus, 6 was assigned as 5,7,2 '-trihydroxyflavanone4'-O-b-D-glucoside.

Compound 7, was named C23H24O11. An isoflavone skeleton was suggested by UV absorbance at 259 nm in the proton 1H NMR spectrum of a one proton singlet at d 8.22. The UV value of band II (ring A) at d 259 nm was about 6 nm nearer in the UV than the equivalent 5-hydroxyisoflavone glycoside (1a). The 13CNMR spectrum provided additional conformation of the lack of a free 5-OH group as the carbonyl signal of 7 resonated at d 175.1 instead of 180.0 as shown in the spectrum of compound 1a. The 7-hydroxyl group was free as indicated by a bathochromic shift in band II (ring A) of 11 nm upon the addition of sodium acetate. The 1H NMR spectrum showed a one proton singlet at d 6.44 indicating that ring A was trisubstituted. From HMBC data this proton showed correlations with carbons 5 and 8 instead of 6 and 9, therefore it was assigned to position 6. Ring B showed a pattern of three one-proton signals at d 7.08, d 6.77 and d 6.91, the mutiplicity of which showed not coupled to each other. The size of the coupling constants (1.7 and 8.2 Hz) is characteristic of meta and ortho couplings as found in a 3',4 '-oxygenated flavonoids. The presence of two methoxyl groups in the molecule was indicated by a peak in the 1H NMR spectrum at d 3.79 appearing as a singlet and integrating for 6 protons and from long-range COSY connectivities the positions of the methoxyl group on ring A and ring B were conformed since cross-peaks from H-6 to OMe were found as well as from H-2' to OMe. The 13C NMR spectrum showed signals at d 73.6, 71.2, 79.1, 70.9, 81.9 and 61.6 characteristic of a C-glucoside. The glucose residue was assigned to position 8 based on HMBC correlations. The conformation of the anomeric proton was deduced to be b based on the signal at d 4.7 appearing as a doublet with a coupling constant of 9.5 Hz. The structure of 7 was thus established as orobol 5,3'-di-O-methyl-8-C-glucoside.

Jurnal 2 : “Development of sorbents for immunoaffinity extraction of isoflavonoids”Despite the high number of isoflavonoid compounds and the different degrees of their complexity, it is

reasonable to expect that the simplest isoflavones (e.g. daidzein and genistein) should be present in all isoflavonoid-producing species as the precursors of the more complex ones. Their detection thus may be used as an indicator of the presence of the isoflavonoid metabolic branch in the newly studied taxa. This reasoning led us to develop an off-line combination of immunoaffinity chromatography (IAC) and HPLC–ESI-MS for the detection of simple isoflavones in plant extracts. Detection of these secondary metabolites in non-legumes is impeded by the complex matrix of plant material and low concentration of the analytes. In this study, we

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present a combination of immunoaffinity chromatography (IAC) and HPLC–ESI-MS as a new tool for the detection of isoflavonoids.

Ini adalah ligan-ligan konjugat yang digunakan sebagai imunogen untuk mensintesis senyawa isoflavonoid dimana struktur dasar dari imunogen tersebut sudah mengandung gugus isoflavon. Nama dari senyawa ligan tersebut adalah anti-7-O-carboxymethyl-daidzein (A) dan anti-4’0-O-carboxymethyl-genistein (B).

There was a high number of interfering peaks and an uneven baseline on the chromatogram of the crude extract, even with the analysis in the SIM mode limited just to four selected ions. results of the application of two different genistein-specific immunosorbents: (1) genistein-7 IS, which has high affinity towards genistin; (2) genistein-40 IS, which has high affinity towards sophoricoside and to daidzein. The detection of genistein was more or less expectable in M. pomifera, as genistein is likely to be a metabolic precursor of osajin and pomiferin, the well known isoflavones associated with this plant species. Moreover, several other simple isoflavonoids were detected for the first time in M. pomifera and Ficus carica by means of the off-line combination of IAC and HPLC–ESI-MS. We conclude that the prepared set of immunosorbents can be used in combination with HPLC–ESI-MS as a valuable tool for sensitive detection of simple isoflavonoids as indicators of thepresence of the isoflavonoid metabolic pathway in non-leguminous plants.

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Senyawa Flavonoid dari Maclura pomifera dan Maclura tinctoria

Jurnal 1 : “Development of sorbents for immunoaffinity extraction of isoflavonoids”Dalam suatu bahan alam banyak sekali ditemukan jenis senyawa isoflavonoid dan tingkat kompleksitas

mereka yang berbeda, oleh karena itu dimungkinkan bahwa senyawa isoflavon sederhana (misalnya daidzein dan genistein) dapat ditemukan di semua jenis tanaman penghasil isoflavonoid sebagai prekursor yang lebih kompleks. Keberadaan mereka dapat digunakan sebagai indikator adanya cabang metabolik isoflavonoid dalam penelitian taksa baru. Alasan ini mendorong adanya pengembangan kombinasi kromatografi immunoaffinity (IAC) dan HPLC-ESI-MS untuk mendeteksi isoflavon sederhana dari ekstrak tumbuh-tumbuhan. Deteksi metabolit sekunder tanaman non polong terhambat oleh matriks kompleks bahan tanaman dan konsentrasi rendah dari analit. Dalam penelitian ini, digunakan kombinasi kromatografi immunoaffinity (IAC) dan HPLC-ESI-MS sebagai alat baru untuk mendeteksi isoflavonoid.

Ini adalah ligan-ligan konjugat yang digunakan sebagai imunogen untuk mensintesis senyawa isoflavonoid dimana struktur dasar dari imunogen tersebut sudah mengandung gugus isoflavon. Nama dari senyawa ligan tersebut adalah anti-7-O-carboxymethyl-daidzein (A) dan anti-4’0-O-carboxymethyl-genistein (B). a. b.

Dan berikut adalah beberapa senyawa isoflavon sederhana yang diidentifikasi dengan IAC dan HPLC-ESI-MS :

Sedangkan berikut adalah senyawa isoflavon yang

teridentifikasi memiliki gugus gabungan isoprene atau terpenoid : a. Osajin b.Pomiferin

Dari kromatogram dalam jurnal,ada beberapa puncak yang menyimpang dan dasar yang tidak merata pada kromatogram dari ekstrak kasar, bahkan dengan analisis dalam modus SIM terbatas hanya untuk empat ion yang dipilih. Hasil dari penerapan dua immunosorbents genistein-spesifik yang berbeda: (1) genistein-7 IS, yang memiliki afinitas tinggi terhadap genistin, (2) genistein-40 IS, yang memiliki afinitas tinggi terhadap sophoricoside dan daidzein. Dari hasil menunjukkan senyawa genistein lebih bisa diharapkan dijumpai dalam M. pomifera, seperti genistein yang menjadi prekursor metabolik osajin dan pomiferin, isoflavon yang sangat sering dijumpai dalam Maclura. Kami menyimpulkan bahwa penggunaan immunosorbents dapat digunakan dalam kombinasi dengan HPLC-ESI-MS sebagai alat untuk mendeteksi adanya senyawa isoflavonoid sederhana sebagai indikator adanya jalur metabolisme isoflavonoid pada tanaman M. pomifera.Jurnal 2 : Flavonoid from Maclura tinctoria

Struktur kimia senyawa 1-5 ditentukan dengan perbandingan titik leleh dan spektrum UV serta data spektroskopi lainnya dengan literatur. Senyawa 6 dan 7, adalah sutruktur yang dibahas pada jurnal ini. Berdasarkan FABMS menunjukkan rumus molekul dari senyawa 6 adalah C21H22O11. Spektrum UV

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menunjukkan absorbansi besar di 286 nm identik dengan gugus flavanone. Sebuah singlet di d 12.14, menunjukkan proton hydroxyl C-5. Pada C-2 muncul sebagai doublet ganda pada d 5,64 (J = 13 dan 3 Hz). Proton C-3 muncul di d 2.64 sebagai doublet ganda. Sebuah sinyal dua proton pada d 5,88 muncul sebagai singlet menunjukkan gugus H-6 dan H-8. Sebuah sinyal dua proton pada d 6.56 muncul sebagai multiplet menunjukkan gugus H-3 'dan H-5' dan sinyal satu-proton di d 7.3 menunjukkan gugus H-6 '. Data 1HNMR menunjukkan bahwa cincin A adalah hidroksilasi pada posisi 5 dan 7, sedangkan cincin B pada 2 'dan 4'. Data NMR 13C selanjutnya menunjukkan hidroksilasi pada C-2' karena pergeseran kimia dari C-2 di d 74,1 mengindikasi adanya 2'-oxysubstituent. Resonansi 1H NMR pada d 3,5 ± 3,2 dan enam sinyal dalam spektrum NMR 13C pada 100,9 ± 61,6 mengindikasikan adanya gugus O-Glu. Proton anomerik glukosa muncul di d 4,8 sebagai doublet dengan kopling konstan untuk H-10/H-20 J = 7,5 Hz, menunjukkan hubungan dari unit glukosa menjadi aglikon. Unit glukosa ditempatkan pada posisi 2 ' berdasarkan nilai dari proton dari karbon anomerik (d 4.8) dan korelasi HMBC diamati antara proton anomerik glukosa dan karbon 4' C-4. Dengan demikian, 6 disebut sebagai 5,7,2 '-trihydroxyflavanone 4'-OBD-glucoside.

Senyawa 7, bernama C23H24O11. Sebuah kerangka isoflavon ditunjukan oleh absorbansi UV pada 259 nm. Nilai UV band II (cincin A) di d 259 nm adalah sekitar 6 nm dekat dalam UV daripada setara glikosida 5-hydroxyisoflavone (1a). The 13CNMR spektrum yang tersedia konformasi tambahan dari tidak adanya gugus 5-OH bebas sebagai sinyal karbonil dari 7 bergaung di d 175,1 180,0 bukannya seperti yang ditunjukkan dalam spektrum 1a majemuk. The Spektrum 1H NMR menunjukkan proton singlet di d 6.44 menunjukkan bahwa cincin A tersubstitusi. Dari data yang HMBC proton ini menunjukkan korelasi dengan karbon 5 dan 8 bukan 6 dan 9, karena itu ditugaskan ke posisi 6. Cincin B menunjukkan pola tiga sinyal proton di d 7.08, d 6.77 dan 6.91 d, mutiplicity menunjukkan tidak berdekatan satu sama lain. Ukuran dari konstanta kopling (1,7 dan 8,2 Hz) adalah karakteristik dari meta dan orto kopling seperti yang ditemukan di 3 ', 4' flavonoid-oksida. Adanya dua gugus methoxyl dalam molekul ditandai dengan puncaknya pada 1H spektrum NMR pada d 3,79 muncul sebagai singlet dan mengintegrasikan untuk 6 proton dan dari konektivitas Cosy jangka panjang posisi gugus methoxyl pada cincin A dan cincin B yang sesuai sejak lintas puncak dari H-6 sampai OMe ditemukan serta dari H-2 'untuk OMe. Spektrum 13C NMR menunjukkan sinyal pada d 73,6, 71,2, 79,1, 70,9, 81,9 dan 61,6 karakteristik C-glucoside. Residu glukosa berada posisi 8 berdasarkan korelasi HMBC. Konformasi dari proton anomerik itu disimpulkan menjadi b berdasarkan sinyal pada d 4.7 muncul sebagai doublet dengan konstanta kopling 9,5 Hz. Maka struktur 7 disebut sebagai orobol 5,3 '-di-O-metil-8-C-glucoside. Berikut adalah struktur flavonoid yang telah banyak diidentifikasi pada tanaman Maclura :1 2 3 4 5

Berikut adalah struktur flavonoid baru yang teridentifikasi pada Maclura tinctoria :6 7