Triethylamine → HCID 66817419, compound

Participants

Reaction Steps

The resulting crude product 8-[2-(2,6-dimethyl-4-methylamino-phenyl)-ethanesulfonyl]-2-hex-5-enyl-1,3,8-triaza-spiro[4.5]dec-1-en-4-one (160 mg, 0.35 mmol) was dissolved in methylene chloride. 9-Decenoyl chloride (0.35 mmol) (prepared by allowing oxalyl chloride and a catalytic amount of DMF to act on 9-decenoic acid in methylene chloride) and triethylamine (0.195 ml, 1.4 mmol) were added, and the mixture was stirred at room temperature for 17 hours. A saturated aqueous ammonium chloride solution and water were added to the reaction solution, and the resulting mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous sodium sulfate and then concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography to give dec-9-enoic acid {4-[2-(2-hex-5-enyl-4-oxo-1,3,8-triaza-spiro[4.5]dec-1-ene-8-sulfonyl)-ethyl]-3,5-dimethyl-phenyl}-methyl-amide (Compound 1443) (100 mg, 48% in two steps).

Provenance & Evidence