Two new acylated triterpenoid saponins from Tetrapleura tetraptera

Noté, OP; Mitaine-Offer, Anne Claire; Miyamoto, Tomofumi; Paululat, Thomas; Pegnyemb, DE; Lacaille-Dubois, MA

doi:10.1055/s-0028-1084487

Cited by 2 publications

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“…Investigation of the chemical composition of A. coriaria stem bark has led to the identification of lupeol, lupenone, benzyl alcohol, betulinic acid, (+)-catechin and acacic acid lactone [39], and 43 other compounds including hexanal, (2,4-dinitrophenyl)hydrazine; hydroquinone and 7-hydroxy-3′methoxyflavone, trimethylsilyl ether [46]. In the root bark extracts, Gummiferaoside C and Coriariosides A-E were earlier characterized [43,48]. Recently, we reported the presence of lupenone, lupeol, betulinic acid, betulin and benzyl alcohol in the leaves of this species sampled from Mbarara district of Western…”

Section: Introductionmentioning

confidence: 99%

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

2022

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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 OH stretching (3362.30 cm-1), C=O (1660.08 cm-1), CO stretching (1369.46 cm-1 and 1319.00 cm-1) and CN 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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Section: Introductionmentioning

confidence: 99%