PROCESS FOR PREPARING DERIVATIVES OF PHTALAZINE

摘要

1480591 Substituted phthalazines BOOTS CO Ltd 28 Oct 1974 [31 Oct 1973] 50623/73 Heading C2C The invention comprises compounds of the formula or their enol or enthiol forms of formula in which Q is COOH, CH 2 OH or COOR 6 wherein R 6 is an ester forming group; X is oxygen or sulphur; R is hydrogen or alkyl; Z is hydrogen or acyl; Ar is an aryl group unsubstituted in the positions ortho to the point of attachment to the phthalazine ring and the ring J is substituted, or a pharmaceutically acceptable salt with an inorganic or organic base of any compound which is an acid. The compounds of the invention are used as therapeutic agents.