Synthesis of new pyrazolothiazole derivatives from 4-thiazolidinones

Abstract

The synthesis of new 2,3,5,6-aryl substituted tetrahydro-2H-pyrazolo[3,4-d]thiazoles 4a-j as potential biologically active compounds by the cyclocondensation of phenyl hydrazine with new 5-arylidene derivatives 2a-j of 2,3-disubstituted-1,3thiazolidin-4-ones la-e is reported.