The aldol synthesis of benzimidazole, benzothiazole and benzothiazoliu
m salt derivatives of chromones is described. The structures of the co
mpounds have been proved by elemental analysis and H-1 NMR spectra. Th
e antimycobacterial activity of some of the prepared compounds have be
en tested in vitro against Mycobacterium tuberculosis (H37RV) and Myco
bacterium fortuitum (1021).