5,6-Dihydro-4-oxo-4H-thieno{8 2,3-b{9 thiopyran-5-carboxamides, and process for the preparation thereof

摘要

This invention relates to 5,6-dihydro-4-oxo-4H-theino[2,3-b]thiopyran-5-carboxamides of the Formula I: I wherein R1 is hydrogen, halogen or lower alkyl; R2 is hydrogen, lower alkyl or aryl; and Ar is aryl or heterocyclic; their pharmaceutically acceptable salts and to processes for their preparation. The compounds of this invention exhibit antibacterial, antifungal and antiallergy activity.