Demethyl derivatives of steganes and deoxypodorhizon, 3, 4, 6, 7, 9, 10, 12, 13, 18, 23, were prepared by the selective demethylation of the methoxy group of steganes and deoxypodorhizon, 2, 5, 8, 11, 22. The cytotoxicity of these derivatives was evaluated against KB cell and was found not to exceed that of the parent steganes. 4-Demethyldexypodorhizon (18) was found to show more potent cytotoxicity than deoxypodorhizon (22).
通过选择性去甲基化 Steganes 和 deoxypodorhizon、3、4、6、7、9、10、12、13、18、23 的甲氧基,制备了 Steganes 和 deoxypodorhizon、2、5、8、11、22 的去甲基衍
生物。对这些衍
生物对 KB 细胞的细胞毒性进行了评估,结果发现它们的细胞毒性不超过母体
甜菜碱。研究发现,4-去甲基二氧
哒嗪(18)比脱氧
哒嗪(22)显示出更强的细胞毒性。