| abstract |
Cis derivatives of formula ** see formula ** wherein R1 is hydrogen, halogen or C1-7 alkyl; R 2 / R 3 are independently from each other, hydrogen, halogen, CN, C 1-7 alkyl, C 1-7 alkyl substituted by halogen, C 1-7 alkoxy or C 1-7 alkoxy substituted by halogen; X is -O- or -N (R) -; R is hydrogen or C1-7 alkyl; and pharmaceutically acceptable acid addition salts thereof. |