Pyridine → HCID 22315127, compound

Participants

Reaction Conditions

Reaction Steps

A solution of triphenylphosphine (99 mg, 0.37 mmol) and N-bromosuccinimide (76 mg, 0.42 mmol) in methylene chloride (1.26 mL) cooled to 0° C. was treated with 2-[4-(butane-1-sulfonyl)-phenyl]-3-cyclopentyl-propionic acid (85 mg, 0.25 mmol) in methylene chloride. The reaction mixture was stirred at 25° C. for 45 min. At this time, the reaction was treated with 2-aminothiazole (33 mg, 0.32 mmol) and pyridine (0.03 mL, 0.37 mmol). The reaction was stirred at 25° C. for 18 h. The reaction mixture was then concentrated in vacuo to remove methylene chloride. At this time, the reaction was diluted with water (50 mL) and extracted with chloroform (3×50 mL). The combined organic layers were dried over sodium sulfate, filtered, and concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 70–230 mesh, 50/50 hexanes/ethyl acetate) afforded 2-[4-(butane-1-sulfonyl)-phenyl]-3-cyclopentyl-N-thiazol-2-yl-propionamide (69.3 mg, 65.6%) as an off-white solid: mp 163–165° C.; EI-HRMS m/e calcd for C21H28N2O3S2 (M+) 420.1541 found 420.1535.

Provenance & Evidence