Synthesis and in-vitro anticancer activity of 3-cyano-6,9-dimethyl-4-imino 2-methylthio 4H-pyrimido [2,1-b] [1,3] benzothiazole and its 2-substituted derivatives

The compounds 3, 4-a, 4-d, 5-a, 6-a, 6-b exhibited maximum in-vitro anticancer activity against different cancers lines.