O-Methylhydroxylamine → HCID 86693975, compound

Participants

Reaction Steps

To a mixture of (2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid 1 (0.334 g, 1.21 mmol) in DCM (25.0 mL) were added O-methylhydroxylamine 97 (0.193 g, 2.31 mmol), 1-hydroxybenzotriazole (0.25 g, 1.85 mmol), 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (0.35 g, 1.82 mmol) and 4-di(methylamino)pyridine (0.34 g, 2.78 mmol) sequentially at room temperature. The mixture was stirred at room temperature overnight, diluted with DCM and concentrated to provide a residue, which was subjected to chromatography to give (2S,5R)-6-(benzyloxy)-N-methoxy-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxamide 98 (0.17 g, 46%) as a white foam.

Provenance & Evidence