HCID 57215384, compound → HCID 57003213, compound

Participants

Reaction Steps

A mixture of (2R,3S)-2-benzyloxymethyl-4-methanesulfonyl-1-(4-methoxybenzenesulfonyl)-3-methylpiperazine (330 mg) and palladium hydroxide (40 mg) in dioxane (5 ml) and MeOH (5 ml) was hydrogenated in hydrogen at 3.5 atm and ambient temperature for 1 day. The catalyst was removed by filtration through a celite pad and the pad was washed with MeOH. The filtrate and combined washings were concentrated in vacuo. The residue was purified by SiO2 column chromatography (eluent: AcOEt/n-hexane 60%, then MeOH/AcOEt 1%) to give 253 mg of (2R,3S)-2-hydroxymethyl-4-methanesulfonyl-1-(4-methoxybenzenesulfonyl)-3-methylpiperazine.

Provenance & Evidence