2-Phenylglutaric anhydride → 4-{3-[2-(2-methyl-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)ethyl]-1,2,4-oxadiazol-5-yl}-2-phenylbutanoic Acid

Participants

Reaction Steps

The procedure for the preparation of the product of EXAMPLE 8 was repeated using 2-phenylglutaric anhydride (Aldrich) in the place of 3,3-tetramethyleneglutaric anhydride to provide a 55:45 mixture of the title products as a gum. 1H (CD3OD) δ 1.90 (2H, m); 2.15-2.35 (2H, comp. band); 2.32/2.40 (3H, s); 2.42-2.53 (1H, comp. band); 2.69/2.76 (2H, t); 2.85 (1H, m); 2.92-3.04 (4H, comp. band); 3.45 (2H, t); 3.66/4.39, (1H, t); 7.23-7.40 (5H, comp. band), 7.44/7.52 (1H, s).

Provenance & Evidence