US7772243 — 4-phenylamino-quinazolin-6-yl-amides

USPTO Abstract

This invention provides quinazoline compounds of the formula: wherein: R 1 is halo; R 2 is H or halo; R 3 is a) C 1 -C 3 alkyl, optionally substituted by halo; or b) —(CH 2 ) n -morpholino, —(CH 2 ) n -piperidine, —(CH 2 ) n -piperazine, —(CH 2 ) n —-piperazine-N(C 1 -C 3 alkyl), —(CH 2 ) n -pyrrolidine, or —(CH 2 ) n -imidazole; n is 1 to 4; R 4 is —(CH 2 ) m -Het; Het is morpholine, piperidine, piperazine, piperazine-N(C 1 -C 3 alkyl), imidazole, pyrrolidine, azepane, 3,4-dihydro-2H-pyridine, or 3,6-dihydro-2H-pyridine, each optionally substituted by alkyl, halo, OH, NH 2 , NH(C 1 -C 3 alkyl) or N (C 1 -C 3 alkyl) 2 ; m is 1-3; and X is O, S or NH; or a pharmaceutically acceptable salt thereof, as well as processes and intermediate compounds for making them, useful pharmaceutical compositions and methods of using the compounds in the treatment of proliferative diseases.