Structure−Activity Relationship of 3-Substituted <i>N</i>-(Pyridinylacetyl)-4- (8-chloro-5,6-dihydro-11<i>H</i>-benzo[5,6]cyclohepta[1,2-<i>b</i>]pyridin-11-ylidene)- piperidine Inhibitors of Farnesyl-Protein Transferase: Design and Synthesis of in Vivo Active Antitumor Compounds
作者:F. George Njoroge、Bancha Vibulbhan、Dinananth F. Rane、W. Robert Bishop、Joanne Petrin、Robert Patton、Mathew S. Bryant、K.-J. Chen、Amin A. Nomeir、C.-C. Lin、Ming Liu、Ivan King、Jianping Chen、Suining Lee、Bohdan Yaremko、Janet Dell、Philip Lipari、Michael Malkowski、Zujun Li、Joseph Catino、Ronald J. Doll、V. Girijavallabhan、Ashit K. Ganguly
DOI:10.1021/jm970464g
日期:1997.12.1
Ras farnesyl-protein transferase (FPT) inhibitors are described. A comprehensive structure-activity relationship (SAR) study of compounds arising from substitution at the 3-position of the tricyclic pyridine ring system has been explored. In the case of halogens, the chloro, bromo, and iodo analogues 19, 22, and 28 were found to be equipotent. However, the fluoro analogue 17 was an order of magnitude
描述了新型三环Ras法呢基蛋白转移酶(FPT)抑制剂。已经探索了由三环吡啶环系统的3位取代产生的化合物的全面构效关系(SAR)研究。对于卤素,发现氯,溴和碘类似物19、22和28等价。但是,氟类似物17的活性降低了一个数量级。较小的烷基取代基(例如甲基)会产生非常有效的FPT抑制剂(SCH 56580),而引入较大的取代基(例如化合物33的叔丁基或化合物29或苯基)会导致FPT抑制剂失活。3位的极性基团(如氨基5,烷基氨基6和羟基12)的活性较低。化合物SCH 44342在体内没有明显的抗肿瘤活性,3-溴取代的吡啶基N-氧化物酰胺类似物38是有效的FPT抑制剂,以50 mpk的qid给药和10 mpk的52%给药时,可使肿瘤生长降低81%。这些化合物是非肽类,不包含巯基。它们选择性抑制FPT,而不抑制香叶基香叶基蛋白转移酶1(GGPT-1)。它们还抑制COS猴肾细胞中的H-Ras加工和Ras转化细胞的软琼脂生长。