Two Novel Cycloartane-Type Triterpenes from Trichilia casaretti C. DC. (Meliaceae).

Ivo Jose Curcino VieiraElaine Rodrigues FigueiredoMilena Gonçalves Curcino VieiraAlmir Ribeiro de Carvalho JuniorMichel de Souza PassosSamyra Imad da Silva BoenoOtoniel Aquino AzevedoRaimundo Braz Filho

Published in: Molecules (Basel, Switzerland) (2018)

Two new triterpenes cycloartane-type, named 24-methylencycloartan-12-oxo-3β,22α-diol and trichiliol, were isolated from the leaves of Trichilia casaretti C. DC. together with three known triterpenes—24-methylencycloart-3β,22-diol, 22,25-dihydrocycloart-23(E)-en-3β-ol, and 22(R)-hydroxycycloart-24-en-3-ol. These compounds were characterized on the basis of their spectral data, mainly 1D (¹H and 13C) and 2D NMR (¹H-¹H-COSY, ¹H-¹H-NOESY, HMQC, HSQC, and HMBC), and mass spectra (EI-MS and HR-ESI-MS), also involving comparison with data from the literature.

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