Synthesis and biological activity of a new class of cytotoxic agents: N-(3-oxoprop-1-enyl)-substituted pyrimidines and purines
作者:Francis Johnson、K. M. R. Pillai、Arthur P. Grollman、Lucy Tseng、Masaru Takeshita
DOI:10.1021/jm00374a004
日期:1984.8
thymine and adenine compounds are highly cytotoxic to a variety of tumor cell lines and inhibit macromolecular synthesis in cultured HeLa cells. Structure-activity studies, based primarily on the pyrimidine derivatives, reveal that the most potent inhibition occurs when the propenal group is located on the 3-nitrogen of a 2'-deoxyribonucleoside. The 3-(3-oxoprop-1-enyl) derivatives of thymidine, 2'-deoxyuridine
合成了胸腺嘧啶和胞嘧啶的1-(3-氧代丙-1-烯基)衍生物以及腺嘌呤和鸟嘌呤的相应9-取代衍生物(博来霉素,Fe2 +和O2降解DNA的产物)并测试了其生物学活性。胸腺嘧啶和腺嘌呤化合物对多种肿瘤细胞系具有高度细胞毒性,并抑制培养的HeLa细胞中的大分子合成。主要基于嘧啶衍生物的结构活性研究表明,最有效的抑制作用发生在丙烯基位于2'-脱氧核糖核苷的3-氮原子上时。胸苷,2'-脱氧尿苷和5-碘-2'-脱氧尿苷的3-(3-氧代丙-1-烯基)衍生物有力且选择性地抑制了胸苷向DNA中的掺入(IC50大约等于0。5 microM)与用异氧尿苷观察到的结果相当。该系列中的活性化合物易于与含有伯氨基和巯基的亲核试剂反应。这项研究的结果为开发新型细胞毒剂提供了基础。