Chemical Evaluation of Betula Species in Japan. V. Constituents of Betula ovalifolia
摘要：
Two new seco-dammarane-type triterpenes, called ovalifoliolides A and B, were isolated from the methanol extract of fresh leaves of Betula ovalifolia together with 12-O-acetylbetulafolienetriol, (3R)-3,5'-dihydroxy-4'-methoxy- 3',4 -oxo-1,7-diphenyl-1-heptene and rutin. Betulin, betulin 3-caffeate, rhododendrin, (+)-catechin, (+)-catechin 7-O-β-D-xylopyranoside and procyanidin B-3 were also isolated from the bark. Their structures were determined by spectral data and chemical evidence.
展开
DOI：
10.1248/cpb.46.169
被引量：
年份：
1998
通过文献互助平台发起求助，成功后即可免费获取论文全文。
请先登入
相似文献
参考文献
引证文献
辅助模式
0
引用
文献可以批量引用啦~
欢迎点我试用！
