Tyrosine Kinase Inhibitors. 17. Irreversible Inhibitors of the Epidermal Growth Factor Receptor: 4-(Phenylamino)quinazoline- and 4-(Phenylamino)pyrido[3,2-<i>d</i>]pyrimidine-6-acrylamides Bearing Additional Solubilizing Functions
作者:Jeff B. Smaill、Gordon W. Rewcastle、Joseph A. Loo、Kenneth D. Greis、O. Helen Chan、Eric L. Reyner、Elke Lipka、H. D. Hollis Showalter、Patrick W. Vincent、William L. Elliott、William A. Denny
DOI:10.1021/jm990482t
日期:2000.4.6
EGFR and erbB2 autophosphorylation in cells. 7-Alkylamino- and 7-alkoxyaminopyrido[3,2-d]pyrimidines were also irreversible inhibitors with equal or superior potency against the isolated enzyme but were less effective in the cellular autophosphorylation assays. Both quinazoline- and pyrido[3,2-d]pyrimidine-6-acrylamides bound at the ATP site alkylating cysteine 773, as shown by electrospray ionization
通过使相应的6-胺与丙烯酸或丙烯酸酐反应,制备被可溶的7-烷基胺或7-烷氧基胺侧链取代的4-苯胺基喹唑啉-和4-苯胺基吡啶并[3,2-d]嘧啶-6-丙烯酰胺。在吡啶并[3,2-d]嘧啶系列中,中间体7-氨基-6-烷基胺是由7-溴-6-氟吡啶并[3,2-d]嘧啶在适当的条件下,通过钯与适当的锡烷偶联而制得的。 0)催化。这证明了引入阳离子增溶侧链的通用方法。评价化合物对分离的EGFR酶的磷酸化的抑制,以及对A431细胞中EGFR的EGF刺激的EGFR自身磷酸化的抑制以及MDA-MB 453细胞中调蛋白刺激的erbB2自身磷酸化的抑制。具有7-烷氧基胺增溶基团的喹唑啉类似物是分离的EGFR酶的有效不可逆抑制剂,IC(50p)值为2至4nM,并有效抑制细胞中的EGFR和erbB2自磷酸化。7-烷基氨基-和7-烷氧基氨基吡啶并[3,2-d]嘧啶也是不可逆的抑制剂,对分离的酶具有相同或更高的效力,但