- TRICYCLIC PYRROLE DERIVATIVES USEFUL AS 5-HT SELECTIVE AGENTS
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The invention relates to tricyclic pyrrole derivatives useful as 5-HT selective agents of the formula STR1 wherein R 1 to R 4 are, independently, hydrogen, halogen, lower alkyl, phenyl, cycloalkyl or lower alkoxy and R 2 additionally is lower alkoxycarbonyl, acyloxy or mesyloxy;R 5 to R 7 are, independently, hydrogen or lower alkyl;X is--CH 2 CH(C 6 H. sub.5)--,--CH=C(C 6 H 5)--,--YCH 2--,--CH=CH--or--(CR 11 R 12) n ;R 11 and R 12 are, independently, hydrogen, phenyl, lower alkyl or halogen;n is 1 to 3 andy is O or S,as well as pharmaceutically acceptable salts of basic compounds of formula I with pharmaceutically acceptable acids.
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