Pyrimidine derivatives R 0510 Synthesis and Biological Study of Oxopyrimidines and Thiopyrimidines of 2-(2,4-Dichlorophenyl)imidazo[1,2-a]pyridin-3-carbaldehyde. -A variety of new title compounds (III) (24 examples) is synthesized and evaluated for antimicrobial and antifungal in vitro activities. -(LADANI, M. J.; TALA, S. D.; AKBARI, J. D.; DHADUK, M. F.; JOSHI*, H. S.; J. Indian Chem.