Hydrochloric Acid → HCID 118160645, compound

Participants

Reaction Steps

5-[2-(2-Acetylamino-2-methoxycarbonyl-ethylsulfanylcarbonyl)-2-(3-tert-butoxycarbonylamino-propionylamino)-ethyl]-imidazole-1-carboxylic acid tert-butyl ester (46a, 0.1028 g, 0.175 mmol) in dry dioxane (2 mL) was added dropwise to 4N HCl in dioxane (5.0 mL, 114 mmol) and the mixture was stirred about 2 hours at room temperature. The reaction mixture was concentrated to dryness and residual volatiles removed in high vacuum. The product was obtained as a white solid. MS: (M+1)+=386.1. 1H NMR (DMSO-d6) δ 9.15 (bm, 1H), 9.11 (s, 1H), 8.48 (bs, 1H), 8.00 (bm, 3H), 7.44 (bs, 1H), 4.69 (bm, 1H), 4.37 (bm, 1H), 3.64-3.56 (bm, 5H), 3.4-3.1 (bm, number of protons obscured by water peak and residual dioxane), 2.93 (bs, 2H), 2.58 (bm, 2H), 1.85, (s, 3H).

Provenance & Evidence