4-Phenylpyrrolo[3,4-c]carbazole-1,3(2H,6H)-dione Inhibitors of the Checkpoint Kinase Wee1. Structure−Activity Relationships for Chromophore Modification and Phenyl Ring Substitution
摘要:
High-throughput screening has identified a novel class of inhibitors of the checkpoint kinase Wee1, which have potential for use in cancer chemotherapy. These inhibitors are based on a 4-phenylpyrrolo[3,4-c]carbazole- 1,3(2H,6H)-dione template and have been shown by X-ray crystallography to bind at the ATP site of the enzyme. An extensive study of the effects of substitution around this template has been carried out, which has identified substituents which lead to improvements in potency and selectivity for Wee1. While retention of the maleimide ring and pendant 4-phenyl group is necessary for potency, replacement of the carbazole nitrogen by oxygen is well tolerated and results in improved Wee1 selectivity against the related checkpoint kinase Chk1. Wee1 potency and selectivity are also enhanced by the incorporation of lipophilic functionality at the 2'-position of the 4-phenyl ring, and Wee1 selectivity against Chk1 is favored by C3-C5 alkyl substitution of the carbazole nitrogen. These studies provide a basis for the design of active analogues of the pyrrolocarbazole lead with improved physical properties.
DOI:
10.1021/jm0512591
作为产物:
描述:
5-甲氧基-1H-吲哚-2-羧酸 、 (苄氧羰基亚甲基)三苯基膦 在
甲醇 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以to give benzyl (2E)-3-(5-methoxy-1H-indol-2-yl)-2-propenoate (2) in a 30.46 g, 87% yield as pale yellow plates的产率得到benzyl (2E)-3-(5-methoxy-1H-indol-2-yl)-2-propenoate
This invention relates to pyrrolocarbazole derivatives according formula I wherein R1, R2, R7, R8, R9, X and Y are as defined in the specification wherein said derivatives specifically inhibit one or both of the checkpoint kinases Wee1 and Chk1
4-Phenylpyrrolo[3,4-<i>c</i>]carbazole-1,3(2<i>H</i>,6<i>H</i>)-dione Inhibitors of the Checkpoint Kinase Wee1. Structure−Activity Relationships for Chromophore Modification and Phenyl Ring Substitution
作者:Brian D. Palmer、Andrew M. Thompson、R. John Booth、Ellen M. Dobrusin、Alan J. Kraker、Ho H. Lee、Elizabeth A. Lunney、Lorna H. Mitchell、Daniel F. Ortwine、Jeff B. Smaill、Leesa M. Swan、William A. Denny
DOI:10.1021/jm0512591
日期:2006.8.1
High-throughput screening has identified a novel class of inhibitors of the checkpoint kinase Wee1, which have potential for use in cancer chemotherapy. These inhibitors are based on a 4-phenylpyrrolo[3,4-c]carbazole- 1,3(2H,6H)-dione template and have been shown by X-ray crystallography to bind at the ATP site of the enzyme. An extensive study of the effects of substitution around this template has been carried out, which has identified substituents which lead to improvements in potency and selectivity for Wee1. While retention of the maleimide ring and pendant 4-phenyl group is necessary for potency, replacement of the carbazole nitrogen by oxygen is well tolerated and results in improved Wee1 selectivity against the related checkpoint kinase Chk1. Wee1 potency and selectivity are also enhanced by the incorporation of lipophilic functionality at the 2'-position of the 4-phenyl ring, and Wee1 selectivity against Chk1 is favored by C3-C5 alkyl substitution of the carbazole nitrogen. These studies provide a basis for the design of active analogues of the pyrrolocarbazole lead with improved physical properties.