2-chloro-N-[2,6-di(propan-2-yl)phenyl]acetamide

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-(Chloroacetyl)-2,6-diisopropylaniline (196.3 mg), N-pentyl-N-[[2′-[N-(triphenylmethyl)tetrazol-5-yl]-1,1′-biphenyl-4-yl]methyl]amine (430.0 mg), potassium iodide (70 mg) and triethylamine (0.6 g) were suspended in dimethylformamide (3 mL). The resulting mixture was heated to about 80° C., and then stirred at that temperature. Three hours later, the reaction mixture was cooled, ethyl acetate (30 mL) was added, and the mixture was washed four times with brine (50 mL, each). The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was subjected to chromatography on a silica gel column (hexane/ethyl acetate) to afford N-[[[(2,6-diisopropylphenyl)amino]carbonyl]methyl]-N-pentyl-N-[[2′-[N-(triphenylmethyl)tetrazol-5-yl]-1,1′-biphenyl-4-yl]methyl]amine (196.4 mg). Yield: 33%. Three hours later, the reaction mixture was cooled the mixture was washed four times with brine (50 mL The organic layer was dried over anhydrous sodium sulfate concentrated under reduced pressure

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: N-(Chloroacetyl)-2,6-diisopropylaniline (196.3 mg), N-pentyl-N-[[2′-[N-(triphenylmethyl)tetrazol-5-yl]-1,1′-biphenyl-4-yl]methyl]amine (430.0 mg), potassium iodide (70 mg) and triethylamine (0.6 g) were suspended in dimethylformamide (3 mL). The resulting mixture was heated to about 80° C., and then stirred at that temperature. Three hours later, the reaction mixture was cooled, ethyl acetate (30 mL) was added, and the mixture was washed four times with brine (50 mL, each). The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was subjected to chromatography on a silica gel column (hexane/ethyl acetate) to afford N-[[[(2,6-diisopropylphenyl)amino]carbonyl]methyl]-N-pentyl-N-[[2′-[N-(triphenylmethyl)tetrazol-5-yl]-1,1′-biphenyl-4-yl]methyl]amine (196.4 mg). Yield: 33%. Three hours later, the reaction mixture was cooled the mixture was washed four times with brine (50 mL The organic layer was dried over anhydrous sodium sulfate concentrated under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 18.8 g of N-(2,6-diisopropylphenyl)-2-chloroacetamide, 8.9 g of ethyl 2-mercaptoacetate, 20.4 g of potassium carbonate, and 100 ml of dimethyl sulfoxide was stirred at room temperature for 1 hour, and a mixture of 25 ml of concentrated hydrochloric acid and 100 ml of water was added thereto. The reaction mixture was extracted with 300 ml of ethyl acetate, and the extract was washed successively with a 1N hydrochloric acid aqueous solution, a sodium hydrogencarbonate aqueous solution, and a saturated sodium chloride aqueous solution, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure to yield 22.6 g of N-(2,6-diisopropylphenyl)-2-(ethoxycarbonylmethylthio)acetamide as white needle crystals (m.p.=124.0°-125.0° C.). was added The reaction mixture was extracted with 300 ml of ethyl acetate the extract was washed successively with a 1N hydrochloric acid aqueous solution a sodium hydrogencarbonate aqueous solution, and a saturated sodium chloride aqueous solution, and dried over magnesium sulfate The solvent was evaporated under reduced pressure

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir: