3-(2-(4-(1-(2-ethoxyethyl)-1H-benzimidazol-2-yl)[1,4]diazepan-1-yl)ethyl)-3-phenylpyrrolidine hydrochloric acid → 1-(2-Methoxy-5-(1h-tetrazol-5-yl)benzoyl)-3-(2-(4-(1-(2-ethoxyethyl)-1h-benzimidazol-2-yl)[1,4]diazepan-1-yl)ethyl)-3-phenylpyrrolidine

Participants

Reaction Steps

Prepare by the method of Example 56.1 using 2-methoxy-5-(1H-tetrazol-5-yl)benzoic acid and 3-(2-(4-(1-(2-ethoxyethyl)-1H-benzimidazol-2-yl)[1,4]diazepan-1-yl)ethyl)-3-phenylpyrrolidine hydrochloric acid salt (prepared from (−)-3-(2-hydroxyethyl)-3-phenylpyrrolidine (R,R)-di-p-anisoyltartaric acid salt) to give, after chromatography on silica gel eluting sequentially with dichloromethane/methanol/concentrated ammonium hydroxide) 95/5/0.1 dichloromethane/methanol/concentrated ammonium hydroxide) 80/20/0.2, the title compound: Rf=0.81 (silica gel, dichloromethane/methanol/concentrated ammonium hydroxide) 90/10/0.1).

Provenance & Evidence