目的 研究云南红豆杉Taxu yunnanensis种子的化学成分。方法 通过色谱技术进行分离纯化，利用核磁共振技术鉴定化合物的结构。结果 从云南红豆杉种子中分离得到12个紫杉烷类化合物，分别鉴定为7-表-10-去乙酰基紫杉醇（1）、9α, 10β-二乙酰基-2α-羟基-5α-桂皮酰基-3, 11-环化紫杉烷-4(20)-烯-13-酮（2）、2α, 7α, 10β-三乙酰基-9α-羟基-5α-桂皮酰基-3, 11-环化紫杉烷-4(20)-烯-13-酮（3）、2α-乙酰基-9α, 10β-二羟基-5α-桂皮酰基紫杉烷-4(20), 11-二烯-13-酮（4）、2α, 7β, 9α, 10β-四乙酰基-5α-桂皮酰基-11, 12-环氧紫杉烷-4(20)-烯-13-酮（5）、7β, 9α, 10β-三乙酰基-5α-桂皮酰基紫杉烷-4(20), 11-烯-13α-醇（6）、9-去乙酰基紫杉宁A（7）、5α-去桂皮酰基紫杉欧吉酚（8）、2α, 5α, 10β, 13α-四乙酰基-1β, 7β, 9α-三羟基-4, 20-环氧紫杉烷-11-烯（9）、7β, 9α, 10β-三乙酰基-2α, 5α, 13α-三羟基紫杉烷-4(20), 11-二烯（10）、7, 9, 10, 13-tetra-O-deacetylabeobaccatin VI（11）、taxacustin（12）。结论 化合物2、3、7～12为首次从该植物中分离得到。

Objective To study the chemical constituents from the seeds of Taxus yunnanensis. Methods The chemical constituents in the seeds of T. yunnanensis were isolated by chromatography and identified by a comprehensive analysis on the spectral data. Results Twelve taxanes were isolated from the seeds of T. yunnanensis and identified as 7-epi-10-deacetyltaxol (1), 2- deacetoxytaxuspine C (2), 9α-hydroxy-2α, 7α, 10β-triacetoxy-5α-cinnamoyloxy-3, 11-cyclotaxa-4(20)-en-13-one (3), 2α-acetoxy- 5α-cinnamoyloxy-9α, 10β-dihydroxy-taxa-4 (20), 11-diene-13-one (4), dantaxusin C (5), taxezopidine H (6), 9-deacetyltaxinine A (7), 5α-decinnamoyltaxagifine (8), taxumairol B (9), 2α, 5α, 13α-trihydroxy-7β, 9α, 10β-triacetoxy-taxa-4(20), 11-diene (10), 7, 9, 10, 13-tetra-O-deacetylabeobaccatin VI (11), and taxacustin (12). Conclusion Compounds 2, 3, and 7—12 are isolated from T. yunnanensis for the first time.