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-1,3-thiazolidin-4-ones 1a-e is reported. © 2007 by MDPI.