反应详情

BAL resin immobilized 5-(S)-acetamidomethyl-3-[4′-(pentafluorophenyl)oxycarbonyl-3′-fluorophenyl]oxazolidine-2-one (0.100g, 0.029 mmol) was agitated with 4-morpholinoaniline (0.155 mg, 0.87 mmol) in 10% pyridine in dimethylformamide (2 ml) for 24 h. The resin was filtered and washed liberally with dimethylformamide, MeOH, DCM, and dried under vacuum. The dry resin was cleaved in 60% trifluoroacetic acid in dichloromethane (2 ml) for 2 h at room temperature. The supernatant was evaporated under vacuum, and the crude product was purified by preparative TLC (eluent: 10% methanol in dichloromethane to give product as a white solid. Yield 6.6 mg (50%). MS (m/z): 457.2 [M+H]+. 1H NMR.

1. filtrationThe resin was filtered
2. washwashed liberally with dimethylformamide, MeOH, DCM
3. customdried under vacuum
4. customThe supernatant was evaporated under vacuum
5. customthe crude product was purified by preparative TLC (eluent
6. custom10% methanol in dichloromethane to give product as a white solid