APPLICATION OF QUINAZOLINE DERIVATIVES AS INHIBITORS OF THYROSINIC KINASE IN TREATING COLONIC POLYPS

摘要

This invention provides a method of treating or inhibiting colonic polyps in a mammal in need thereof which comprises administering to said mammal a compound having formula (I), wherein X is phenyl which is optionally substituted; R and R1 are each independently, hydrogen, halogen, alkyl, alkoxy, hydroxy or trifluoromethyl; R2 is hydrogen, alkyl, alkoxy, hydroxy or trifluoromethyl; Y is a radical selected from the group consisting of formulae (II), (III), (IV), (V), (VI), (VII) and (VIII). R3 is independently hydrogen, alkyl, carboxy, carboalkoxy, phenyl, or carboalkyl; n = 2-4; or a pharmaceutically acceptable salt thereof, with the proviso that each R3 of Y may be the same or different.