Triethylamine → HCID 67147970, compound

Participants

Reaction Steps

0.18 ml (1.3 mmol) of hexanoyl chloride is added to a solution, cooled beforehand to 0° C., of 0.4 g (1.2 mmol) of methyl 2(S)-ethoxy-3-[4-(5-methylaminomethylthiophen-3-yl)phenyl]propanoate and 0.18 ml (1.3 mmol) of triethylamine in 20 ml of tetrahydrofuran. The reaction medium is stirred at room temperature for 2 hours, washed with water and extracted with ethyl acetate. The ethyl acetate phase is dried over magnesium sulfate, filtered and evaporated. The residue obtained is purified by thin-layer chromatography on silica eluted with a 70/30 heptane/ethyl acetate mixture. 0.4 g (83%) of methyl 2(S)-ethoxy-3-(4-{5-[(hexanoylmethylamino)methyl]thiophen-3-yl}phenyl)propanoate is obtained.

Provenance & Evidence