Phytochemical investigation of Bulbophyllum wendlandianum (Kraenzl.) Dammer led to the isolation of twenty-three compounds 1–23 (flavanthrinin 1, coelonin 2, lusianthridin 3, densiflorol B 4, plicatol B 5, batatasin-lll 6, gigantol 7, 5-hydroxy-3,3′-dimethoxy-2-(p-hydroxybenzyl) bibenzyl 8, 2,2-dimethyl-5-hydroxy-6-carboxy-7-(2-phenylethyl) 9, tristin 10, p-hydroxybenzyl ethyl ether 11, p-hydroxybenzaldehyde 12, hydroquinone 13, coniferaldehyde 14, p-hydroxybenzyl alcohol 15, 3,4-dihydroxy benzaldehyde 16, stigmasterol 17, β-sitosterol 18, ergosterol peroxide 19, (+)pinoresinol 20, n-butyl sulfoxide 21, tridec-4E-en-l-yl acetate 22, ethyl linolate 23) including five phenanthrenes 1–5, five bibenzyls 6–10, six phenols 11–16, three sterols 17–19, one lignan 20, one n-butyl sulfoxide 21 and two fatty acids 22–23. The structures of these compounds were elucidated by spectroscopic analyses. This is the first report of isolation of compounds 1–23 from Bulbophyllum wendlandianum and compounds 8–9, 11, 13, 15–16 and 19–23 within genus Bulbophyllum. Compound 21 is a new natural product, isolated from a natural source for the first time. Furthermore, the chemotaxonomic significance of the isolates was also discussed.

的植物化学物质调查石豆兰wendlandianum（Kraenzl。）Dammer导致23化合物的隔离1-23（flavanthrinin 1，coelonin 2，lusianthridin 3，densiflorol乙4，plicatol乙5，batatasin-LLL 6，gigantol 7，5-羟基-3,3'-二甲氧基-2-（p羟基苄基）联苄8，2,2-二甲基-5-羟基-6-羧基-7-（2-苯基乙基）9，tristin 10，p羟基苄基乙基醚11，对羟基苯甲醛12，氢醌13，松柏醛14，p羟基苄基醇15，3,4-二羟基苯甲醛16，豆17，β谷甾醇18，麦角甾醇过氧化物19，（+）松脂醇20，正丁基亚砜21，十三碳4E烯-乙酸-1-酯22，亚麻酸乙酯23），包括五个菲1-5，五个联苄6-10，六个酚11-16，三个甾醇17-19，一个木脂素20，一个正丁基亚砜21和两种脂肪酸22–23。通过光谱分析阐明了这些化合物的结构。这是化合物的分离的第一报告1-23从石豆兰wendlandianum和化合物8-9，11，13，15-16和19-23属内石豆兰。化合物21是一种新的天然产物，首次从天然来源中分离出来。此外，还讨论了分离株的化学分类学意义。