Vr. Shah et al., SYNTHESIS OF 1,3,4-OXADIAZOLES HAVING NICOTINAMIDE MOIETY AS POTENTIAL ANTIMICROBIAL AGENTS, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 36(1), 1997, pp. 101-103
2-Arylamino-5-p-(nicotinamidophenyl)-1,3, 4-oxadiazoles (5a-q) have be
en synthesised starting from ethyl p-nicotinamidobenzoate (1) which in
turn is obtained by treatment of nicotinic acid with thionyl chloride
followed by reaction with ethyl p-aminobenzoate in pyridine.