Rg. Menon et E. Purushothaman, SYNTHESIS AND BIOLOGICAL PROPERTIES OF 2-MERCAPTOPYRIMIDO-[5,4-C]CINNOLIN-4(3H)-ONES AND THEIR S-ALKYL DERIVATIVES, Journal of the Indian Chemical Society, 70(6), 1993, pp. 533-536
The synthesis of some hitherto unreported 2-mercaptopyrimido[5,4-c]cin
nolin-4(3H)-ones (4) is described. Treatment with alkyl halides under
basic conditions yielded the S-alkyl derivatives. The synthesised comp
ounds are characterised by spectral and analytical data. Most of the c
ompounds of the series exhibit promising antibacterial and antifungal
activities.