Pyridine → HCID 10203128, compound

Participants

Reaction Conditions

Reaction Steps

A solution of triphenylphosphine (106 mg, 0.40 mmol) and N-bromosuccinimide (82 mg, 0.45 mmol) in methylene chloride (1.35 mL) was cooled to 0° C. and then treated with a solution of 2-(4-cyclopentanesulfonyl-phenyl)-3-cyclopentyl-propionic acid (94.8 mg, 0.27 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 (35 mg, 0.35 mmol) and pyridine (0.03 ml, 0.40 mmol). The reaction was stirred at 25° C. for 18 h. The reaction was then diluted with water (100 mL) and extracted with chloroform (3×50 mL). The combined organic extracts were dried over sodium sulfate, filtered, and concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 230-400 mesh, 50/50 hexanes/ethyl acetate) afforded 2-(4-cyclopentanesulfonyl-phenyl)-3-cyclopentyl-N-thiazol-2-yl-propionamide (84 mg, 71.8%) as a light-orange solid: mp 180-182° C.; EI-HRMS m/e calcd for C22H28N2O3S2 (M+) 432.1541 found 432.1543.

Provenance & Evidence