Lawesson's reagent → HCID 59167803, compound

Participants

Reaction Steps

Add Lawesson's reagent (31.03 g, 77 mmol) to a solution of 7-[2-(5-chloro-2-isopropoxyphenyl)-2-oxoethylcarbamoyl]heptanoic acid methyl ester (21.80 g, 55 mmol) in THF (550 mL) at room temperature under nitrogen. Heat the mixture at reflux for 3 hours. Remove the solvent under reduced pressure and purify the residue by flash column chromatography on silica gel, eluting with ethyl acetate/hexanes (1:3), to afford 7-[5-(5-chloro-2-isopropoxyphenyl)thiazol-2-yl]heptanoic acid methyl ester (9.96 g, 46%).

Provenance & Evidence