The medicinal potential of the plant pentacyclic triterpene betulin has generated long-term interest focused on various SAR research avenues. The present approach was based on producing further analogues (chimeras) arising from a studied modification of betulin bonded to the Dov-Val-Dil-Dap unit of the powerful anticancer drug dolastatin 10, which provided betulastatins 1 (7b), 2 (11b), 3 (16b), and
植物五环三萜
甜菜碱的药用潜力引起了人们对各种
SAR研究途径的长期关注。本方法基于产生进一步的类似物(嵌合体),该类似物是由于研究到的与强力抗癌药物dolastatin 10的Dov-Val-Dil-Dap单元结合的
甜菜碱的修饰而产生的,从而提供了betulastatins 1(7b),2(11b) ,3(16b)和4(18b)。Betulastatin 1、2和4对六种癌
细胞系表现出中等
水平的癌细胞生长抑制作用。证明Betulastatin 3是最有效的癌细胞生长
抑制剂(GI 50 0.01μg/ mL),似乎值得进一步发展,因为推测的抗癌作用机制混合物可能被证明是有用的。