Pyridine → HCID 45110002, compound

Participants

Reaction Steps

Acetic anhydride (24 uL, 0.26 mmol) and a catalytic amount of DMAP are added in sequence to a solution of N-[3-(2-hydroxy-1,1-dimethyl-ethyl)-isoxazol-5-yl]-2-methyl-2-(tetrahydro-pyran-4-sulfonyl)-propionamide (80.0 mg, 0.21 mmol) and pyridine (21 uL, 0.26 mmol) in anhydrous DCM (2.1 mL). The solution is stirred at room temperature until complete consumption of starting material. After removal of the solvent under reduced pressure, the crude is purified by silica gel column chromatography to afford 71 mg of acetic acid 2-methyl-2-{5-[2-methyl-2-(tetrahydro-pyran-4-sulfonyl)-propionylamino]-isoxazol-3-yl}-propyl ester. Yield: 80%; m/z 417 [M+H].

Provenance & Evidence