Js. Rao et al., SYNTHESIS OF PYRAZOLE-1-CARBON-1,8-NAPHTHYRIDINES AS ANTIMICROBIAL AGENTS, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 34(8), 1995, pp. 734-735
Condensation of 2-methyl-1,8-naphthyridine-3-carboxolic acid hydrazide
(2) with different acetophenones affords the corresponding acetopheno
ne 2-methyl-1,8-naphthyridine-3-carbonylhydrazones (3), which on treat
ment with POCl3 and DMF furnish the title compound 3-(3-aryl- 4-formyl
pyrazole-1-carbonyl)- 2-methyl-1,8-naphthyridines (4). Some of the com
pounds have shown antifungal and antibacterial activities.