4-Cyanobutanoic acid → 4-(3-chlorophenyl)-3-(2-cyanoethyl)-1-ethyl-7-methyl-1,8-naphthyridin-2(1H)-one

Participants

Reaction Steps

After the treatment of 4-cyanobutanoic acid with sodium methoxide in methanol, the treated compound was reacted with pivaloyl chloride in THF. Thus obtained compound was reacted with 3-(3-chlorobenzoyl)-2-ethylamino-6-methylpyridine under heating. Then, the compound obtained by usual work-up was reacted in ethanol in the presence of sodium methoxide under heating. Thereafter, the reaction mixture was worked up and purified in a usual manner to obtain 4-(3-chlorophenyl)-3-(2-cyanoethyl)-1-ethyl-7-methyl-1,8-naphthyridin-2(1H)-one as a pale yellow solid. MS: 352.

Provenance & Evidence