| abstract |
Process for its preparation, pharmaceutical compositions containing them and their use in therapies. Claim 1: A compound having structure 1: wherein n = 0, 1: wherein R1 and R2 are fused and form a methylene group (CH2), a carbonyl group (C = O), or an oxalyl group (O = CC = O); R3 is selected from the group consisting of hydrogen, methyl, ethyl, n-propyl, cyclopropyl, cyclo-butyl, allyl, propargyl, hydroxyethyl, 3-fluorpropyl and 2-fluorethyl, and pharmaceutically acceptable acid addition salts thereof. |