(2-Methoxyethyl)(methyl)amine → 4-[(2-Methoxyethyl)-methyl-carbamoyl]piperazine-1-carboxylic acid tert-butyl ester

Participants

Reaction Steps

To piperazine-1,4-dicarboxylic acid tert-butyl ester 4-nitro-phenyl ester (500 mg) in THF (5 mL) was added N-(2-methoxyethyl)methylamine (254 mg) and the reaction mixture was heated to reflux for 24 h. The reaction mixture was concentrated in vacuo and purified using flash column chromatography to yield 4-[(2-methoxy-ethyl)-methyl-carbamoyl]-piperazine-1-carboxylic acid tert-butyl ester (304 mg). Treatment of this compound with HCl in DCM/MeOH yielded the desired compound, which was isolated as the hydrochloride salt.

Provenance & Evidence