Synthesis of new nucleoside phosphoraziridines as potential site-directed antineoplastic agents
作者:Robert G. Breiner、William C. Rose、Joseph A. Dunn、Joan E. MacDiarmid、Thomas J. Bardos
DOI:10.1021/jm00171a039
日期:1990.9
With the aim of increasing the selectivity of the 2,2-dimethylphosphoraziridine type antitumor agents toward the intracellular site of DNA synthesis, a series of new compounds was synthesized in which the reactive bis(2,2-dimethyl-1-aziridinyl)phosphinyl (2,2-DMAP) group was linked through a carbamate or amide linkage to thymidine or cytosine nucleoside moieties. The 3'- and 5'-(2,2-DMAP)carbamates
为了提高2,2-二甲基磷杂氮杂吡啶类抗肿瘤剂对DNA合成的细胞内位点的选择性,合成了一系列新的化合物,其中反应性双(2,2-二甲基-1-叠氮基)次膦酰基(通过氨基甲酸酯或酰胺键将2,2-DMAP)基团连接至胸苷或胞嘧啶核苷部分。发现胸腺嘧啶(1和2)的3'-和5'-(2,2-DMAP)氨基甲酸酯非常不稳定,因此通过使5'-和3'反应制备相应的O-乙酰基衍生物5和6 -乙酰基胸苷分别用二氯异氰酸根合膦氧化物氧化,然后加入2,2-二甲基氮丙啶和三乙胺。胸腺嘧啶14和15的3'-和5'-(2,2-DMAP)酰胺是通过使适当的胸苷胺与bis(2,2-二甲基-1-叠氮基)次膦酰氯(17)。通过使O-过乙酰化胞嘧啶核苷的盐酸盐与三乙胺和POCl3反应,制得胞苷,2'-脱氧胞苷和胞嘧啶阿拉伯糖苷(分别为18、19和20)的N4-(2,2-DMAP)酰胺随后,用2,2-二甲基氮丙啶和三乙胺分别得到相应的N