反应详情

N-{2-(2-Aminoethyl)-9-[(2R,3R,4R,5R)-3,4-bis{[tert-butyl(dimethyl)silyl]oxy}-5-(methoxymethyl)tetrahydro-2-furanyl]-9H-purin-6-yl}-N-(2,2-diphenylethyl)amine (1.07 g, 1.46 mmol) (preparation 18) was dissolved in dry tetrahydrofuran (4 ml), a 1M solution of tetra-n-butylammonium fluoride in tetrahydrofuran (6 ml, 6 mmol) added and the mixture stirred at room temperature for 2.5 hr. The solvent was removed under reduced pressure and the residue dissolved in dichloromethane. The solvent was again removed under reduced pressure and the residue purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol:ammonia (90:10:1), to give the product as a foam (760 mg). MS: 505 (MH+).

1. customThe solvent was removed under reduced pressure
2. dissolutionthe residue dissolved in dichloromethane
3. customThe solvent was again removed under reduced pressure
4. customthe residue purified by column chromatography on silica gel eluting with a solvent system of dichloromethane:methanol:ammonia (90:10:1)