Triethylamine → HCID 57964394, compound

Participants

Reaction Steps

To a solution of 200 mg (0.46 mmol) of (4-{2-[4-(3-trifluoromethylphenyl)piperazin-1-yl]ethyl}cyclohexylidene)acetic acid, hydrochloride in 5 mL of dichloromethane stabilized on amylene are successively added 63 mg (0.46 mmol) of 1-hydroxybenzotriazole, 88 mg (0.46 mmol) of 3-ethyl-1-(3-dimethylaminopropyl)carbodiimide hydrochloride and 140 mg (1.4 mmol) of triethylamine. The mixture is stirred for 15 minutes then 45 mg (0.46 mmol) of N,O-dimethylhydroxylamine hydrochloride are added. The mixture is stirred overnight at room temperature, then evaporated under reduced pressure. The residue is dissolved in ethyl acetate and washed twice with water. The organic phase is dried over magnesium sulfate, filtered and concentrated under reduced pressure. The residue is purified over 10 g of silica gel (eluant dichloromethane/methanol 98/2) to give 143 mg (71%) of N-methoxy-N-methyl-2-(4-{2-[4-(3-trifluoromethylphenyl)piperazin-1-yl]ethyl}cyclohexylidene)acetamide as an oil.

Provenance & Evidence