Thiazoles

Abstract

Novel thiazoles of formula I ##STR1## wherein R.sub.1 and R.sub.4 are lower alkyl, lower alk-2-en-1-yl or lower alk-2-yn-1-yl, R.sub.2 and R.sub.3 are each independently of the other hydrogen or lower alkyl or together form lower alkylidene, and R.sub.5 and R.sub.6 are each hydrogen or lower alkyl or together form oxo, and R.sub.5 ' and R.sub.6 ' have the same definitions as R.sub.5 and R.sub.6, with the proviso that at least one of the substituent pairs R.sub.5 and R.sub.6 or R.sub.5 ' and R.sub.6 ' together form oxo, and salts thereof, processes for the preparation of the said compounds, pharmaceutical compositions comprising them and the use thereof as medicinal active ingredients.

Dependencies are inferred from the claim text.