Faculty of Chemistry, Ho Chi Minh City University of Science (HCMUS), Ho Chi Minh City, Viet Nam.
Phytochemistry. 2011 Feb;72(2-3):290-5. doi: 10.1016/j.phytochem.2010.11.016. Epub 2010 Dec 16.
Friedolanostanes, (22Z,24E)-3β-acetoxy-9α-hydroxy-17,14-friedolanosta-14,22,24-trien-26-oic acid, (22Z,24E)-3β,9α-dihydroxy-17,14-friedolanosta-14,22,24-trien-26-oic acid, (22Z,24E)-9α-hydroxy-3-oxo-17,14-friedolanosta-14,22,24-trien-26-oic acid, a friedocycloartane, (22Z,24E)-3α-hydroxy-17,13-friedocycloarta-12,22,24-trien-26-oic acid, and a benzophenone, benthaphenone, together with known compounds (22Z,24E)-3α,9α-dihydroxy-17,13-friedolanosta-12,22,24-trien-26-oic acid, methyl (24E)-3α,23-dihydroxy-17,14-friedolanosta-8,14,24-trien-26-oate, glutinol, lupeol, and stigmasterol, were isolated from leaves and bark of Garcinia benthami. Their structures were elucidated using spectroscopic techniques, mainly 1-D and 2-D NMR spectroscopy, and chemical correlations.
Friedolanostanes、(22Z,24E)-3β-乙酰氧基-9α-羟基-17,14-弗里多兰烷-14,22,24-三烯-26-酸、(22Z,24E)-3β,9α-二羟基-17,14-弗里多兰烷-14,22,24-三烯-26-酸、(22Z,24E)-9α-羟基-3-氧代-17,14-弗里多兰烷-14,22,24-三烯-26-酸、一种 friedocycloartane、(22Z,24E)-3α-羟基-17,13-friedocycloarta-12,22,24-三烯-26-酸和一种苯并二酮 benthaphenone,以及已知化合物(22Z,24E)-3α,9α-二羟基-17,13-弗里多兰烷-12,22,24-三烯-26-酸、甲基(24E)-3α,23-二羟基-17,14-弗里多兰烷-8,14,24-三烯-26-酸、谷甾醇、羽扇豆醇和豆甾醇,从 Garcinia benthami 的叶和树皮中分离得到。它们的结构通过光谱技术,主要是 1-D 和 2-D NMR 光谱和化学相关性来阐明。