Abstract Rotundatin, a new 9,10-dihydrophenanthrene derivative was isolated from the orchid, Dendrobium rotundatum , which also afforded the known stilbenoids 2,7-dihydroxy-3,4,6-trimethoxyphenanthrene, 2,7-dihydroxy-3,4,6-trimethoxy-9,10-dihydrophenanthrene, nudol, moscatin and batatasin-III. Rotundatin was shown to be 2,5,9-trihydroxy-4-methoxy-9,10-dihydrophenanthrene from spectral and chemical evidence.

中文翻译：

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Rotundatin，一种来自 Dendrobium rotundatum 的新型 9,10-二联菲衍生物

摘要 Rotundatin 是一种新的 9,10-二氢菲衍生物，是从兰花 Dendrobium rotundatum 中分离出来的，它也提供了已知的芪类 2,7-二羟基-3,4,6-三甲氧基菲、2,7-二羟基-3,4、 6-三甲氧基-9,10-二氢菲、nudol、moscatin 和 batatasin-III。光谱和化学证据表明 Rotundatin 是 2,5,9-三羟基-4-甲氧基-9,10-二氢菲。