Triethylamine → 1-{(R)-3-[2-(4-{1-[2-(2-Methoxy-ethoxy)-ethyl]-1H-benzoimidazol-2-yl}-[1,4]diazepan-1-yl)-ethyl]-3-phenyl-pyrrolidin-1-yl}-1-(2-methoxy-5-tetrazol-1-yl-phenyl)-methanone

Participants

Reaction Steps

Heat a mixture of 2-[1,4]diazepan-1-yl-1-[2-(2-methoxy-ethoxy)-ethyl]-1H-benzoimidazole dihydroiodide (0.71 g, 1.24 mmol), methanesulfonic acid 2-{(S)-1-[1-(2-methoxy-5-tetrazol-1-yl-phenyl)-methanoyl]-3-phenyl-pyrrolidin-3-yl}-ethyl ester (0.60 g, 1.27 mmol, example 47.2) and acetonitrile (10 mL), triethylamine (1.2 mL, 8.61 mmol) and acetonitrile (15 mL) at 85° C. for 18 hours. Quench the reaction and purify the crude product as described in Example 113 to afford 0.51 g of the title compound, Rf=0.40 (silica gel, dichloromethane:methanol:30% ammonium hydroxide, 90:10:0.1). The compound may be converted to the dihydrochloride salt by methods well known in the art.

Provenance & Evidence