N-(2,6-dimethylphenyl)-2-piperazin-1-ylacetamide

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (±)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[[3-fluoro-5-(trifluoromethyl)phenyl]methyl]-4-piperidinone (0.01 mol) and N-(2,6-dimethylphenyl)-1-piperazine-acetamide (0.01 mol) in 2-propanol (150 ml) was hydrogenated at 50C with platinum on activated carbon (5%; 2 g) as a catalyst in the presence of titanium(IV)isopropoxide (2.84 g) and thiophene solution (1 ml). After uptake of hyrogen, the catalyst was filtered off and the filtrate was evaporated. The residue was taken up in CH2Cl2 and H2O. The organic layer was separated, washed several times with H2O, dried, filtered over dicalite and the solvent was evaporated. This fraction was purified by HPLC over silica gel (eluent: CH2Cl2/CH3OH 98/2). Two pure fractions were collected and their solvents were evaporated. The residue was dried, yielding 0.72 g (10%) of (±)-cis-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[[3-fluoro-5-(trifluoromethyl)phenyl]methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 140) and 0.88 g (12%) of (±)-trans-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[[3-fluoro-5-(trifluoro-methyl)phenyl]methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 141). After uptake of hyrogen, the catalyst was filtered off the filtrate was evaporated The organic layer was separated washed several times with H2O dried filtered over dicalite the solvent was evaporated This fraction was purified by HPLC over silica gel (eluent: CH2Cl2/CH3OH 98/2) Two pure fractions were collected their solvents were evaporated The residue was dried

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (±)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[[3-fluoro-5-(trifluoromethyl)phenyl]methyl]-4-piperidinone (0.01 mol) and N-(2,6-dimethylphenyl)-1-piperazine-acetamide (0.01 mol) in 2-propanol (150 ml) was hydrogenated at 50C with platinum on activated carbon (5%; 2 g) as a catalyst in the presence of titanium(IV)isopropoxide (2.84 g) and thiophene solution (1 ml). After uptake of hyrogen, the catalyst was filtered off and the filtrate was evaporated. The residue was taken up in CH2Cl2 and H2O. The organic layer was separated, washed several times with H2O, dried, filtered over dicalite and the solvent was evaporated. This fraction was purified by HPLC over silica gel (eluent: CH2Cl2/CH3OH 98/2). Two pure fractions were collected and their solvents were evaporated. The residue was dried, yielding 0.72 g (10%) of (±)-cis-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[[3-fluoro-5-(trifluoromethyl)phenyl]methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 140) and 0.88 g (12%) of (±)-trans-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[[3-fluoro-5-(trifluoro-methyl)phenyl]methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 141). After uptake of hyrogen, the catalyst was filtered off the filtrate was evaporated The organic layer was separated washed several times with H2O dried filtered over dicalite the solvent was evaporated This fraction was purified by HPLC over silica gel (eluent: CH2Cl2/CH3OH 98/2) Two pure fractions were collected their solvents were evaporated The residue was dried

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (±)-1-[3,5-bis(trifluoromethyl)benzoyl]-5-(phenylmethyl)-3-pyrrolidinone (0.0037 mol) and N-(2,6-dimethylphenyl)-1-piperazineacetamide (0.0037 mol) in methanol (150 ml) was hydrogenated at 50° C. with palladium on activated carbon (10%, 1 g) as a catalyst in the presence of tiophene solution (1 ml). After uptake of hydrogen, the catalyst was filtered off and the filtrate was evaporated. The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 95/5). The desired fractions were collected and the solvent was evaporated. The residue was dried and then crystallized from DIPE. The precipitate was filtered off and dried, yielding 0.35 g (15%) of (±)-cis-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-5-(phenylmethyl)-3-pyrrolidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 131). After uptake of hydrogen, the catalyst was filtered off the filtrate was evaporated The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 95/5) The desired fractions were collected the solvent was evaporated The residue was dried crystallized from DIPE The precipitate was filtered off dried

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (±)-1-[3,5-bis(trifluoromethyl)benzoyl]-5-(phenylmethyl)-3-pyrrolidinone (0.0037 mol) and N-(2,6-dimethylphenyl)-1-piperazineacetamide (0.0037 mol) in methanol (150 ml) was hydrogenated at 50° C. with palladium on activated carbon (10%, 1 g) as a catalyst in the presence of tiophene solution (1 ml). After uptake of hydrogen, the catalyst was filtered off and the filtrate was evaporated. The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 95/5). The desired fractions were collected and the solvent was evaporated. The residue was dried and then crystallized from DIPE. The precipitate was filtered off and dried, yielding 0.35 g (15%) of (±)-cis-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-5-(phenylmethyl)-3-pyrrolidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 131). After uptake of hydrogen, the catalyst was filtered off the filtrate was evaporated The residue was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 95/5) The desired fractions were collected the solvent was evaporated The residue was dried crystallized from DIPE The precipitate was filtered off dried

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (±)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(3,5-difluorophenyl)methyl]-4-piperidinone (0.0058 mol), N-(2,6-dimethylphenyl)-1-piperazineacetamide (0.0058 mol) and titanium(IV)isopropoxide (0.0064 mol) in 2-propanol (5 ml) was stirred at RT overnight. NaBH4 (0.0116 mol) and ethanol (15 ml) were added. The mixture was stirred for 2 days. Water (5 ml) was added and the mixture was stirred for 10 minutes. CH2Cl2 (200 ml) was added. The organic layer was separated, dried, filtered and the solvent was evaporated. This fraction was purified by HPLC over silica gel (eluent: CH2Cl2/CH3OH 98/2 to 90/10 over a 30-minute period). Two pure fractions (F1 and F2) were collected and their solvents were evaporated. F1 was purified by column chromatography over RP18 (eluent: NH4OAc (0.5% in H2O)/CH3CN 40/60). The pure fractions were collected and the solvent was evaporated. The residue was dried, yielding 0.33 g (8%) of (±)-cis-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(3,5-difluorophenyl)methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 132). F2 was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 100/0 to 92/8 over a 30-minute period). The pure fractions were collected and the solvent was evaporated. The residue was dissolved in CH2Cl2, filtered and the solvent was evaporated. The residue was dried, yielding 0.24 g (6%) of (±)-trans-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(3,5-difluorophenyl)methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 133). The mixture was stirred for 2 days the mixture was stirred for 10 minutes The organic layer was separated dried filtered the solvent was evaporated This fraction was purified by HPLC over silica gel (eluent CH2Cl2/CH3OH 98/2 to 90/10 over a 30-minute period) Two pure fractions (F1 and F2) were collected their solvents were evaporated F1 was purified by column chromatography over RP18 (eluent: NH4OAc (0.5% in H2O)/CH3CN 40/60) The pure fractions were collected the solvent was evaporated The residue was dried

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (±)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(3,5-difluorophenyl)methyl]-4-piperidinone (0.0058 mol), N-(2,6-dimethylphenyl)-1-piperazineacetamide (0.0058 mol) and titanium(IV)isopropoxide (0.0064 mol) in 2-propanol (5 ml) was stirred at RT overnight. NaBH4 (0.0116 mol) and ethanol (15 ml) were added. The mixture was stirred for 2 days. Water (5 ml) was added and the mixture was stirred for 10 minutes. CH2Cl2 (200 ml) was added. The organic layer was separated, dried, filtered and the solvent was evaporated. This fraction was purified by HPLC over silica gel (eluent: CH2Cl2/CH3OH 98/2 to 90/10 over a 30-minute period). Two pure fractions (F1 and F2) were collected and their solvents were evaporated. F1 was purified by column chromatography over RP18 (eluent: NH4OAc (0.5% in H2O)/CH3CN 40/60). The pure fractions were collected and the solvent was evaporated. The residue was dried, yielding 0.33 g (8%) of (±)-cis-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(3,5-difluorophenyl)methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 132). F2 was purified by column chromatography over silica gel (eluent: CH2Cl2/CH3OH 100/0 to 92/8 over a 30-minute period). The pure fractions were collected and the solvent was evaporated. The residue was dissolved in CH2Cl2, filtered and the solvent was evaporated. The residue was dried, yielding 0.24 g (6%) of (±)-trans-4-[1-[3,5-bis(trifluoromethyl)benzoyl]-2-[(3,5-difluorophenyl)methyl]-4-piperidinyl]-N-(2,6-dimethylphenyl)-1-piperazineacetamide (compound 133). The mixture was stirred for 2 days the mixture was stirred for 10 minutes The organic layer was separated dried filtered the solvent was evaporated This fraction was purified by HPLC over silica gel (eluent CH2Cl2/CH3OH 98/2 to 90/10 over a 30-minute period) Two pure fractions (F1 and F2) were collected their solvents were evaporated F1 was purified by column chromatography over RP18 (eluent: NH4OAc (0.5% in H2O)/CH3CN 40/60) The pure fractions were collected the solvent was evaporated The residue was dried