New Mustard Prodrugs for Antibody-Directed Enzyme Prodrug Therapy: Alternatives to the Amide Link
作者:Robert I. Dowell、Caroline J. Springer、David H. Davies、Elizabeth M. Hadley、Philip J. Burke、F. Thomas Boyle、Roger G. Melton、Thomas A. Connors、David C. Blakey、Anthony B. Mauger
DOI:10.1021/jm950671l
日期:1996.1.1
Antibody-directed enzyme prodrug therapy (ADEPT) is a two-step approach for the treatment of cancer which seeks to generate a potent cytotoxic agent selectively at a tumor site. In this work described the cytotoxic agent is generated by the action of an enzyme CPG2 on a relatively nontoxic prodrug. The prodrug 1 currently on clinical trial is a benzamide and is cleaved by CPG2 to a benzoic acid mustard
抗体导向酶前药疗法(ADEPT)是一种用于癌症治疗的两步法,旨在在肿瘤部位选择性地产生有效的细胞毒剂。在这项工作中,描述了细胞毒性剂是通过酶CPG2对相对无毒的前药产生的。当前正在临床试验中的前药1是苯甲酰胺,并被CPG2裂解为苯甲酸芥子气药物1a。我们合成了一系列新的前药3-8,其中的苯甲酰胺键已被例如氨基甲酸酯或脲基取代。这些替代链接中的一些已被证明是CPG2的良好底物,因此是ADEPT的新候选者。源自这些前药中最好的一种的活性药物3a和4a是有效的细胞毒剂(1-2 microM),大约是1a的100倍。前药3和4的细胞毒性降低了约100-200倍,