New Peroxy Triterpenes from the Aerial Roots of Ficus microcarpa
摘要:
Six new triterpenes, 3 beta -acetoxy-12 beta ,13 beta -epoxy-11 alpha -hydroperoxyursane (1), 3 beta -acetoxy-11 alpha -hydroperoxy-13 alphaH-ursan-12-one (2), 3 beta -acetoxy-1 beta ,11 alpha -epidioxy-12-ursene (3), (20S)-3 beta -acetoxylupan-29-oic acid (4), (20S)-3 beta -acetoxy-20-hydroperoxy-30-norlupane (5), and 3 beta -acetoxy-18 alpha -hydroperoxy-12-oleanen-11-one (6), together with 3 beta -acetoxy-12-oleanen-11-one (7), were isolated from the aerial roots of Ficus microcarpa. Compounds 1-3, 5, and 6 were characterized as new peroxytriterpenes. The structures of 3 and 6 were confirmed by X-ray crystallography, and their structures were elucidated by spectroscopic and chemical methods.
New Peroxy Triterpenes from the Aerial Roots of <i>Ficus </i><i>m</i><i>icrocarpa</i>
作者:Yi-Ming Chiang、Yueh-Hsiung Kuo
DOI:10.1021/np0004808
日期:2001.4.1
Six new triterpenes, 3 beta -acetoxy-12 beta ,13 beta -epoxy-11 alpha -hydroperoxyursane (1), 3 beta -acetoxy-11 alpha -hydroperoxy-13 alphaH-ursan-12-one (2), 3 beta -acetoxy-1 beta ,11 alpha -epidioxy-12-ursene (3), (20S)-3 beta -acetoxylupan-29-oic acid (4), (20S)-3 beta -acetoxy-20-hydroperoxy-30-norlupane (5), and 3 beta -acetoxy-18 alpha -hydroperoxy-12-oleanen-11-one (6), together with 3 beta -acetoxy-12-oleanen-11-one (7), were isolated from the aerial roots of Ficus microcarpa. Compounds 1-3, 5, and 6 were characterized as new peroxytriterpenes. The structures of 3 and 6 were confirmed by X-ray crystallography, and their structures were elucidated by spectroscopic and chemical methods.