| Literature DB >> 29671765 |
Ivo Jose Curcino Vieira1, Elaine Rodrigues Figueiredo2, Milena Gonçalves Curcino Vieira3, Almir Ribeiro de Carvalho Junior4, Michel de Souza Passos5, Samyra Imad da Silva Boeno6, Otoniel Aquino Azevedo7, Raimundo Braz-Filho8,9.
Abstract
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.Entities:
Keywords: Meliaceae; Trichilia casaretti; cycloartane-type; triterpenes
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Year: 2018 PMID： 29671765 PMCID： PMC6017113 DOI： 10.3390/molecules23040949
Source DB: PubMed Journal: Molecules ISSN： 1420-3049 Impact factor: 4.411