Hydrochloric Acid → HCID 68706710, compound

Participants

Reaction Steps

To a solution of 5-(5-{(1R)-1-[(tert-butoxycarbonyl)amino]-1-methyl-2-phenylethyl}-1,3,4-oxadiazol-2-yl)-2′-cyanobiphenyl-3-carboxylic acid (Intermediate XVIII, 500 mg. 0.95 mmol) in dioxane (5 mL) at rt was added a solution of HCl in dioxane (7 mL of 4N HCl in dioxane, 28 mmol) and the solution allowed to stand for 1 hour at rt. The solvent was then evaporated at reduced pressure to give 5-[5-(1-amino-1-methyl-2-phenylethyl)-1,3,4-oxadiazol-2-yl]-2′-cyanobiphenyl-3-carboxylic acid (Intermediate XIX) as the derived hydrochloride salt. 1H NMR (400 MHz, CD3OD) δ 8.71 (t, J=1.5 Hz, 1H), 8.45-8.42 (m, 2H), 7.94 (dd, J=7.8, 1 Hz, 1H), 7.85 (dt, J=7.8, 1Hz, 1H), 7.72 (d, J=7.6 Hz, 1H), 7.66 (dt, J=7.6, 1.1 Hz), 7.34-7.28 (m, 3H), 7.15-7.09 (m, 2H), 3.47 (s, 2H), 1.90 (s, 3H). LCMS [(M)+H]+=425.

Provenance & Evidence