反应详情

To a solution of benzyl ((2S,3S)-1-(2,4-dimethoxybenzyl)-2-(hydroxymethyl)-4-oxoazetidin-3-yl)carbamate (0.94 g, 2.34 mmol), 4-(((tert-butyldimethylsilyl)oxy)methyl)-1H-1,2,3-triazole (0.5 g, 2.34 mmol), and PPh3 (0.74 g, 2.81 mmol) in THF (20 mL) at 0° C. was added DIAD (0.57 g, 2.81 mmol) slowly. After stirring at rt for 16 h, the reaction mixture was concentrated in vacuo. The crude residue was purified via silica gel chromatography (EtOAc-hexanes, 20-30%) to afford the title compound (1.25 g, 89%) as a pale yellow solid. LCMS: m/z=594.3 (M−1).

1. concentrationthe reaction mixture was concentrated in vacuo
2. customThe crude residue was purified via silica gel chromatography (EtOAc-hexanes, 20-30%)