Pyridine → HCID 49848188, compound

Participants

Reaction Conditions

Reaction Steps

To a cold slurry of (S)-1-(4-Chloro-phenyl)-4-oxo-azetidine-2-carboxylic acid (0.2 g; 1.037 mmol) and 5-amino-3-tert-butylisoxazole (0.145 g; 1.037 mmol) in pyridine (1.258 mL; 15.555 mmol) is added phosphorous oxychloride (0.116 mL; 1.244 mmol). The mixture is stirred at 0° C. for 30 minutes and then diluted with water and extracted with ethyl acetate several times. The organics are combined and washed with water and brine, dried over Na2SO4, filtered and concentrated in vacuo. Purification by preparative HPLC affords title compound, m/z 348 [M+H+]

Provenance & Evidence