4-Heterocyclyl-piperazine-1-carbodithioic acid derivs. - useful e.g. as hepatoprotectors, choleretics, hypocholesterolaemiants and having anti:lithiase activity

摘要

Piperazine derivs. of formula (I) and their alkali addn. salts are new: (one of A and B is N and the other is O, S or N-Y; or B is S and A is Y is H or CH3. R' is H, 1-5C alkyl, phenyl or benzyl. R is halo, 1-5C alkyl or phenyl. When B is S and A is - -R', R + R' may together be -CH=CH-CH=CH-, opt. substd. by one halo or by >=1 1-5C alkyl or alkoxy, so as to form opt. substd. benzothiazolyl).