Sodium borohydride → 1-[(4-chlorophenyl)methyl]-2-(1,1-dimethylethyl)-4,5,6,7-tetrahydro-1H-benzimidazol-7-ol

Participants

Reaction Steps

To a stirred solution of Intermediate 53 (120 mg) in a mixture of methanol (1.5 mL) and dichloromethane (1.5 mL) at ambient temperature was added sodium borohydride (30 mg) in one charge. The reaction was stirred at ambient temperature under an atmosphere of nitrogen for 2 hr. The reaction was partitioned between ethyl acetate (20 mL) and water (20 mL). The organics were dried (hydrophobic frit) and concentrated in vacuo to give the title compound (85 mg). LC/MS MH+ 319, Rt 1.92 min (5 min run).

Provenance & Evidence