反应详情

To a solution of N-benzyloxy-2(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionamide (580 mg, 0.94 mmol) in a 3:1 mixture of ethanol/tetrahydrofuran (30 ml) was added 10% palladium on charcoal (60 mg). The reaction mixture was placed under a hydrogen balloon and stirred for 6 hours. The material was filtered through a short plug of silica, rinsing with ethanol (200 ml). The filtrate was condensed on the roto-evaporator and the residue was purified by preparative thin layer chromatography using 8.5% methanol-methylene chloride as eluant providing N-hydroxy-2(R)-[(3,4-methylendioxybenzyl)-(2,6-dimethyl-4-methoxybenzenesulfonyl)amino]-3-methanesulfonylamino-propionamide as a tan powder (223 mg).

1. filtrationThe material was filtered through a short plug of silica
2. washrinsing with ethanol (200 ml)
3. customcondensed
4. customon the roto-evaporator
5. customthe residue was purified by preparative thin layer chromatography