| abstract |
An isobenzofuran having the ** formula ** in which: R 1 is hydrogen, halogen, trifluoromethyl, trifluoromethylsulfonyloxy, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-8 cycloalkyl, C 1-6 alkoxy, hydroxy , formyl, acyl, amino, C1-6 alkyl-amino, C2-12 dialkylamino, acylamino, C1-6 alkoxycarbonylamino, aminocarbonylamino, C1-6 alkylaminocarbonylamino, C2-12 dialkylaminocarbonylamino, nitro, cyano, COOH or COO-C1-6 alkyl ; each of R2 and R3 is independently selected from hydrogen, trifluoromethyl, C1-6 alkyl, C2-6 alkenyl, C1-6 alkynyl, C3-8 cycloalkyl and C1-6 alkoxy; their pharmaceutically acceptable acid enantiomers and acid addition salts thereof. |