Ammonia methanol → HCID 86751293, compound

Participants

Reaction Steps

(2R)-2-Benzyl-1-[3,5-bis(trifluoromethyl)benzoyl]-4-(methoxycarbonylmethyl)piperazine (0.2 g) was treated with 20% ammonia methanol solution (5 ml), and the resulting mixture was left overnight in a refrigerator. The reaction mixture was concentrated under reduced pressure and the residue was purified on a silica gel column (7 g) eluting with a mixture of dichloromethane and methanol (10:1) to give (2R)-2-benzyl-1-[3,5-bis(trifluoromethyl)benzoyl]-4-(carbamoylmethyl)piperazine. This compound was treated with 4N hydrogen chloride in ethyl acetate solution to give the corresponding hydrochloride (0.18 g) as a white powder.

Provenance & Evidence