Bioactive Secondary Metabolites from Tecomella undulata

被引：0

作者：

Ahmad, Shabir ^{[1
]}

Musaddiq, Sara ^{[1
]}

Saleem, Muhammad ^{[1
]}

Riaz, Naheed ^{[1
]}

Fatima, Sundas ^{[1
]}

Yaqoob, Asma ^{[1
]}

Jabbar, Abdul ^{[1
]}

Nasim, Faiz-ul-Hassan ^{[1
]}

机构：

[1] Islamia Univ Bahawalpur, Dept Chem, Bahawalpur 63100, Pakistan

来源：

JOURNAL OF THE CHEMICAL SOCIETY OF PAKISTAN | 2014年 / 36卷 / 06期

关键词：

Tecomella undulata; Bignoniaceae; Flavonoid glycoside; Megastigmane; Methanolic extract; ANTIBACTERIAL ACTIVITY; CONSTITUENTS; FLAVAGLINES; GLUCOSIDE; GLYCOSIDE; LEAVES; BARK;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Chromatographic purification of the methanolic extract of Tecomella undulata yielded a new flavonoid glycoside; kaempferol-3-O-beta-D-[3''',4'''di-p-E-coumaroyl-alpha-L-rhamnosyl(1 -> 6)] galactoside (1), two new megastigmanes; (6R 7Z)-9,10-dihydroxy-4,7-megastigmadien-3-one (2) and (6E)-9,10-dihydroxy-4,6-megastigmadien-3-one (3) along with three known compounds; (6R 9S)-9,10-dihydroxy-4-megastigmaen-3-one (4) quercetin-3-galactoside (5) and 3'-dimethoxy-5,6,4'-trihydroxyflavon (6). All the isolates 1-6 were characterized by the combination of 1D (H-1, C-13), 2D (COSY, HSQC and HMBC) NMR data and high resolution mass spectrometric analysis. In antibacterial assay, compound 1 showed moderate inhibitory activity against Escherichia coli and Salmonalla typhi.

引用

页码：1122 / 1128

页数：7

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