Ammonium formate → HCID 9923900, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 2-((1R)-1-{2-[(benzyloxy)amino]-2-oxoethyl}-4-cyclohexylbutyl)-5-methyl-1,3-oxazole-4-carboxamide (Preparation 74) (133 mg, 0.31 mmol) in ethanol (6 ml) was treated with 5% palladium on barium sulphate (80 mg) and ammonium formate (196 mg, 3.10 mmol) and the mixture was heated at 45° C. for 2.5 hours. The solution was filtered through Arbocel® and the solvent removed from the filtrate under reduced pressure. The residue was azeotroped from dichloromethane (×3) then purified by column chromatography on silica gel eluting with dichloromethane:methanol:0.88 ammonia (98:2:0.2 to 90:10:1) to afford the title compound as a white solid (56 mg).

Provenance & Evidence