Two New Pentacyclic Triterpenoids, an Alkaloid and a Long-chain Fatty Acid from Albizia Coriaria (Welw ex. Oliver)

FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY(2022)

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摘要
Herein, we report the occurrence of four new compounds in ethanolic extract of Albizia coriaria Welw ex. Oliver leaves along with other compounds previously reported in this species. The compounds were isolated and characterized using column chromatography, Fourier Transform Infrared (FTIR) and gas chromatography/mass spectrometry. FTIR spectrum of the extract showed phenolic O-H stretching (3362.30 cm(-1)), C=O (1660.08 cm(-1)), C-O stretching (1369.46 cm(-1) and 1319.00 cm(-1)) and C-N stretch (1072.44 cm(-1)) which confirmed the presence of alcohols, carboxylic acids and nitrogen-containing compounds. Oleanolic acid (1), oleanolic acid acetate (2), pterin-6-carboxylic acid (3), undecanol (4), betulinic acid (5), betulin (6) and benzyl alcohol (7) were tentatively identified in the extract. Compounds 1-4 are being reported for the first time in Albizia coriaria.
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关键词
Albizia, triterpenes, pterin-6-carboxylic acid, oleanolic acid, undecanol
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