反应详情

To a mixture of (2S,5R)-7-oxo-N-[(3S)-pyrrolidin-3-yloxy]-6-(sulfooxy)-1,6-diazabicyclo[3.2.1]octane-2-carboxamide Compound 2 (Table 1) (0.030 g, 0.086 mmol, Example 2) in DMF (dimethyl formamide) (1.5 mL) was added 1-{[(4-nitrophenoxy)carbonyl]oxy}ethyl acetate 103 (0.027 g, 0.102 mmol, J. Med. Chem., 1988, vol 31, 2, p318-322) and triethylamine (0.023 mL, 0.171 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 and preparative HPLC to give Compound 101 (Table 1) (0.011 g) as a white solid.

1. concentrationconcentrated
2. customto provide a residue, which