Discovery of N-methyl-4-(4-methoxyanilino)quinazolines as potent apoptosis inducers. Structure–activity relationship of the quinazoline ring
作者:Nilantha Sirisoma、Azra Pervin、Hong Zhang、Songchun Jiang、J. Adam Willardsen、Mark B. Anderson、Gary Mather、Christopher M. Pleiman、Shailaja Kasibhatla、Ben Tseng、John Drewe、Sui Xiong Cai
DOI:10.1016/j.bmcl.2010.01.155
日期:2010.4
A small group at the 5-position was found to be well tolerated. At the 6-position a small group like an amino was preferred. Substitution at the 7-position was tolerated much less than at the 6-position. Replacing the carbon at the 8-position or both the 5- and 8-positions with nitrogen led to about 10-fold reductions in potency. Replacement of the quinazoline ring with a quinoline, a benzo[d][1,2,3]triazine
作为我们发现和发展诱导凋亡的N-甲基-4-(4-甲氧基苯胺基)喹唑啉类新抗癌药的努力的继续,我们探索了在喹唑啉的5、6、7位上的取代以及对喹唑啉的取代。喹唑啉由其他含氮杂环组成。发现在5位的一小群人被很好地耐受。在6-位上,像氨基这样的小基团是优选的。7位取代的耐受性远低于6位。用氮取代8位或5位和8位的碳会导致效能降低约10倍。用喹啉,苯并[ d]取代喹唑啉环] [1,2,3]三嗪或异喹啉环表明,在1位的氮对于活性很重要,而在2位的碳可以被氮取代,而在3位的氮可以替代可以用碳代替。通过SAR研究,发现几种5或6取代的类似物(例如2a和2c)具有接近于铅化合物N-(4-甲氧基苯基)-N,2-二甲基喹唑啉-4-胺(1g, EP128495,MPC-6827,Azixa®)。