| abstract |
The invention relates to novel thiosemicarbazonethiones of formula (I) wherein R1 is lower alkyl, lower alk-2-en-1-yl or also lower alk-2-yn-1-yl, R2 and R3 are each independently of the other hydrogen or lower alkyl or, taken together, are lower alkylidene, R4 is hydrogen, lower alkyl, lower alkoxy, aryl or aryl-lower alkyl, R5 is lower alkyl, aryl, aryl-lower alkyl, unsaturated or saturated heterocyclyl-lower alkyl, or is also lower alkyloxycarbonyl-lower alkyl, and the salts thereof, to a process for the preparation of these compounds, to pharmaceutical compositions containing them, and to the use thereof as medicaments. |