Department of Chemistry, Saurashtra University, Rajkot-360 005 Manuscript received 15 February 1988, revised 5 September 1988, accepted 23 September 1988 4-THTAZOLIDINONE derivatives have been found to possess wide variety of biological activities1,2. 2-Azetidinone and its derivatives also possess wide therapeutic activities3. With a view to get better therapeutic agents, we have undertaken the prepara��tion of 4-thiazolidinone and 2-azetidinone deriva��tives.