Abstract The structure of 3′- O -methylbatatasin III, a new bibenzyl of the East Himalayan orchid, Coelogyne ovalis , has been established on the basis of spectral and chemical data. Known 9,10-dihydrophenanthrene derivatives, a bibenzyl and sterols have also been isolated from the orchid.
摘要 基于光谱和化学数据,确定了东喜马拉雅兰花 Coelogyne Ovalis 的新联苄基 3'-O-methylbatatasin III 的结构。已知的 9,10-二氢菲衍生物、联苄和甾醇也已从兰花中分离出来。
Ochrolide, a phenanthropyrone from Coelogyne ochracea
Abstract The structure of ochrolide, 2,6-dihydroxy 7,8-dimethoxyphenanthro(4,5- bcd )pyran-5-one, isolated from the orchid Coelogyne ochracea has been established from spectroscopic evidence.