介绍了环Sal-核苷酸方法的概念扩展。抗 HIV 活性核苷类似物 d4T 1 的新环盐衍生物的特征是掺入了可酶切的羧酸酯部分,目的是将三酯捕获在细胞内(“锁定”概念)。描述了在环Sal部分的3-或5-位带有不同酯基的环Sal-三酯。令人惊讶的是,只有乙酰基酯和乙酰丙酸酯在 CEM 细胞提取物中容易裂解,而烷基酯被发现是稳定的。尽管如此,在体外抗 HIV 检测中,大多数化合物实现了胸苷激酶旁路,从而证明它们至少充当核苷酸传递系统。†为了纪念和庆祝 Leroy B. Townsend 教授 70 岁生日。
New Developments of the “Lock-in” ModifiedcycloSal-d4TMPs
摘要:
New developments of the "lock-in" modified cycloSal-d4TMP are reported. Novel prodrugs with variations in the linker chain were introduced. The synthesis, hydrolysis properties in different media (PBS, CEM/0- and liver extracts) and the antiviral activities against HIV are shown.