| abstract |
ABSTRACT OF THE DISCLOSURE This invention relates to a compound of the formula: I or a pharmaceutically acceptable salt thereof, in which formula R1 and R2 are the same or different and each represents a hydrogen atom, a lower alkyl group or a halogen atom, R3 represents a lower alkyl group or a benzyl group, R4 represents a hydrogen atom, a lower alkyl group, a benzyl group or a Ch2CH2CH2- bridge connected to the phenyl ring in ortho-position relative to the N-substituent, R5 represents a hydrogen atom or a methyl group and R6 represents a lower alkyl group, provided that R1 and/or R2 represents a lower alkyl group or a halogen atom when R3 represents a methyl group, R4 represents a methyl group and R5 represents a hydrogen atom. The compounds find use as antidepressants. |