HCID 86615667, compound → HCID 86615666, compound

Participants

Reaction Steps

Heat the mixture of (S)-(4-{5-[(3,5-Bis-trifluoromethyl-benzyl)-(2-methyl-2H-tetrazol-5-yl)-amino]-7,9-dimethyl-8-trifluoromethyl-2,3,4,5-tetrahydro-benzo[b]azepin-1-ylmethyl}-cyclohexyl)-acetic acid methyl ester (0.0950 g, 0.129 mmol) in 5.0 N NaOH (1 mL) and methanol (2 mL) under reflux for 2 h. Evaporate the solvents and re-dissolve in water (10 mL). Adjust to pH=7 by adding 2.0 N HCl. Extract with ethyl acetate (2×10 mL). Combine organic layers, dry over anhydrous sodium sulfate and filter. Remove the solvent under reduced pressure. Chromatograph the residue over silica gel, eluting with ethyl acetate/hexanes (0-100%), to provide the title compound as a white foam (0.0620 g, 67%). MS (ES+): 721 (M+H); 719 (M−H).

Provenance & Evidence