申请人:PHARMAGENE LAB LTD
公开号:WO2003068227A1
公开(公告)日:2003-08-21
The present invention concerns compounds of formula (I): wherein R1 is selected from the group consisting of H, and optionally substituted C 1-6 alkyl, C 3-7 cycloalkyl, C 3-7 cycloalkyl-C 1-4 alkyl, and phenyl-C 1-4 alkyl;R2 and R3 are either: (i) independently selected from H, R, R', SO2R, C(=O)R, (CH2)nNR5R6, where n is from 1 to 4 and R5 and R6 are independently selected from H and R, where R is optionally substituted C 1-4 alkyl group, and R' is an optionally substituted phenyl- C 1-4 alkyl group, or (ii) together with the nitrogen atom to which they are attached, form an optionally substituted C 5-7 heterocyclic group; R4 is an optionally substituted C 9-14 aryl group; their use as pharmaceuticals, in particular for treating conditions alleviated by antagonism of a 5-HT 2B receptor.