反应详情

3-Amino-N-[3-({2-({6-[(5R)-5-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-oxo-1,3-oxazolidin-3-yl]hexyl}oxy)ethoxy}methyl)phenyl]benzamide (200 mg) in pyridine (5 ml) under nitrogen was treated with benzenesulfonyl chloride (0.045 ml) and the mixture was stirred at 20° for 2 h. Sat. sodium bicarbonate solution (30 ml) was added and the mixture was extracted with dichloromethane (2×20 ml). The combined extracts were dried (Na2SO4) and the solvent evaporated in vacuo. The residue was purified by flash chromatography on silica gel. Elution with EtOAc-dichloromethane (1:1) gave the title compound (155 mg). LCMS RT=3.72 min, ES+ve 758 (MH)+.

1. extractionthe mixture was extracted with dichloromethane (2×20 ml)
2. dry with materialThe combined extracts were dried (Na2SO4)
3. customthe solvent evaporated in vacuo
4. customThe residue was purified by flash chromatography on silica gel
5. washElution with EtOAc-dichloromethane (1:1)