Method of using 4-anilinoquinazoline derivatives as analgesic and
申请人:Sankyo Company Limited
公开号:US04322420A1
公开(公告)日:1982-03-30
A method of using 4-anilinoquinazoline derivatives of formula (I): ##STR1## (in which: R.sup.1 represents a hydrogen atom, a halogen, atom, a trifluoromethyl group or a nitro group; R.sup.2 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, an alkoxy group or a halogen atom; and R.sup.3 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group) and pharmaceutically acceptable salts thereof are, provided that R.sup.1 does not represents a hydrogen atom or a chlorine atom in the 6- position when R.sup.2 and R.sup.3 both represent hydrogen atoms, as an analgesic and anti-inflammatory in the treatment of mammals. These compounds can be prepared by heating the appropriate 4-haloquinazoline with an appropriate aniline or aniline derivative.