Plant tissue cultures of Tripterygium wilfordii Hook F produced the cytotoxic diterpene triepoxides tripdiolide (1) and triptolide (2) in yields that were 16 and 3 times greater, respectively, than those observed in the plant itself. Other diterpenes, dehydroabietic acid (3) and 15-hydroxy-18-norabieta-3,8,11,13-tetraene-3-oic acid methyl ester (4) were also isolated. Co-occuring in these cultures were the cytotoxic quinone-methides, celastrol (5), compound 6, and compound 7. Other triterpenes produced were oleanolic acid (8) and polpunonic acid (9). β-Sitosterol (17) was also isolated. The proposed structure of 4 was confirmed by synthesis starting from compound 3. Cytotoxic data are reported, and a possible biosynthetic relationship among dehydroabietic acid, compound 4, and tripdiolide (1) is presented.
Tripterygium wilfordii Hook F的植物组织培养产生细胞毒性二萜三环氧化物tripdiolide(1)和triptolide(2),其产量分别比植物本身观察到的产量高出16倍和3倍。其他二萜类化合物,脱氢松香酸(3)和15-羟基-18-去甲松香酸-3,8,11,13-四烯-3-酸甲酯(4)也被分离出来。这些培养物中还共存有细胞毒性醌甲醛类化合物celastrol(5)、化合物6和化合物7。其他生成的三萜类化合物包括齐墩果酸(8)和聚戊酸(9)。β-谷甾醇(17)也被分离出来。化合物4的拟议结构通过从化合物3出发的合成得到证实。报道了细胞毒性数据,并提出了脱氢松香酸、化合物4和tripdiolide(1)之间可能的生物合成关系。