|
|
|
|
Bioactive secondary metabolites from tecomella undulata
|
|
|
|
|
|
|
|
نویسنده
|
ahmad s. ,musaddiq s. ,saleem m. ,riaz n. ,fatima s. ,yaqoob a. ,jabbar a. ,nasim f.-u.-h.
|
|
منبع
|
journal of the chemical society of pakistan - 2014 - دوره : 36 - شماره : 6 - صفحه:1122 -1128
|
|
چکیده
|
Chromatographic purification of the methanolic extract of tecomella undulata yielded a new flavonoid glycoside; kaempferol-3-o-β-d-[3 ⌄,4⌄di-p-e -coumaroyl-α-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 (1h,13c),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.
|
|
کلیدواژه
|
Bignoniaceae; Flavonoid glycoside; Megastigmane; Methanolic extract.; Tecomella undulata
|
|
آدرس
|
department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan, department of chemistry,baghdad-ul-jadeed campus,islamia university of bahawalpur, Pakistan
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Authors
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|