Triethylamine → HCID 86744880, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 3.6 parts of 1-[5,5-bis(4-fluorophenyl)pentyl]-3-methylpiperazine, 3 parts of N-(4-acetyl-2,6-dichlorophenyl)-2-chloroacetamide, 1.9 parts of N,N-diethylethanamine and 45 parts of N,N-dimethyformamide was stirred for 20 hours at 70° C. The reaction mixture was evaporated and the residue was taken up in a mixture of sodium carbonate and water. The product was extracted with dichloromethane. The extract was washed with water, dried, filtered and evaporated. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol (98:2 by volume) as eluent. The pure fractions were collected and the eluent was evaporated. The residue was converted into the hydrochloride salt in 2-propanol and 2,2'-oxybispropane. The product was filtered off and dried in vacuo at 40° C., yielding 1.74 parts (22.8%) of N-(4-acetyl-2,6-dichlorophenyl)-4-[5,5-bis(4-fluoro-phenyl)pentyl]-2-methyl-1-piperazineacetamide dihydrochloride, 2-propanol(1:1), sesquihydrate; mp. 176.3° C. (compound 54).

Provenance & Evidence