Sodium Chloride → HCID 23112209, compound

Participants

Reaction Steps

Into 20 ml of 1,2-dichloroethane were suspended 500 mg of a mixture of 2-(piperidin-1-ylmethyl)biphenyl-4-carboxylic acid and 1.5 equivalents of sodium chloride, and then 174 mg of 3-methoxyaniline dissolved in 2 ml of 1,2-dichloroethane was added thereto. Under ice cooling, 694 mg of O-benzotriazol-1-yl-N,N,N′,N′-tetramethyluronium hexafluorophosphate and 211 μl of N-methylmorpholine were added thereto, followed by 30 hours of stirring at room temperature. Water was added to the reaction solution and the organic layer was extracted with chloroform. The organic layer was dried over anhydrous magnesium sulfate, followed by removal of the solvent by evaporation. The obtained residue was purified by silica gel column chromatography (chloroform:methanol:aqueous ammonia) to obtain N-(3-methoxyphenyl)-2-(piperidin-1-ylmethyl)biphenyl-4-carboxamide. The compound was dissolved in 3 ml of ethyl acetate and then 1 ml of a 4M ethyl acetate solution of hydrochloric acid was added thereto. The solvent was removed by evaporation and crystallization was effected from ethanol to obtain 103 mg of N-(3-methoxyphenyl)-2-(piperidin-1-ylmethyl)biphenyl-4-carboxamide hydrochloride as a white powder.

Provenance & Evidence