inhibition against several tested cancer cell lines. Benzyl and 4-fluorobenzyl analogs were relatively more active than 3,4-dimethoxy phenethyl and 3,4-methylenedioxy phenethyl analogs. In NCI assays, the best LogGI(50) values were shown by the fluorobenzyl analog against the renal cancer cell line RXF-393 (<-8.0M) and dimethoxy phenethyl analog against the CNS cancer cell line, SF-268 (<-8.0M). The
合成了带有取代的苄基和取代的苯乙基侧链的海洋
生物碱,makaluvamine的类似物,并评估了它们的抗增殖活性。4-甲基,4-
氯和4-
氟取代的苄基类似物在乳腺癌
细胞系MCF-7的IC(50)值分别为2.3 microM,1.8 microM和2.8 microM时具有明显的抗增殖作用。4-甲基,4-
氯和3,4-亚甲二氧基衍
生物在苯乙基类似物中表现出对MCF-7的最佳活性,其IC(50)值分别为2.3 microM,2.8 microM和2.4muM。通常,在苄基和苯乙基系列中,甲氧基取代都会导致活性的轻微损失。苄基,4-
氟苄基,3,4-二
甲氧基苯乙基和3,通过NCI在其60个
细胞系的体外人类癌细胞筛选中测试了4-亚甲基二氧基苯乙基类似物。所有四种化合物对几种测试的癌
细胞系均表现出优异的抑制作用。苄基和4-
氟苄基类似物比3,4-二
甲氧基苯乙基和3,4-亚甲二氧基苯乙基类似物具有更高的活性。在