Water → (2S,3S,4R,5R)-2-(5-tert-butyl-1,3,4-oxadiazol-2-yl)-5-{6-[(4-chloro-2-fluorophenyl)amino]-9H-purin-9-yl}oxolane-3,4-diol
反応式
[C:1]([C:5]1[O:9][C:8]([C@@H:10]2[C@@H:14]3[O:15]C(C)(C)[O:17][C@H:13]3[C@H:12]([N:20]3[CH:28]=[N:27][C:26]4[C:21]3=[N:22][CH:23]=[N:24][C:25]=4[NH:29][C:30]3[CH:35]=[CH:34][C:33]([Cl:36])=[CH:32][C:31]=3[F:37])[O:11]2)=[N:7][N:6]=1)([CH3:4])([CH3:3])[CH3:2].O>FC(F)(F)C(O)=O>[C:1]([C:5]1[O:9][C:8]([C@@H:10]2[C@@H:14]([OH:15])[C@@H:13]([OH:17])[C@H:12]([N:20]3[CH:28]=[N:27][C:26]4[C:21]3=[N:22][CH:23]=[N:24][C:25]=4[NH:29][C:30]3[CH:35]=[CH:34][C:33]([Cl:36])=[CH:32][C:31]=3[F:37])[O:11]2)=[N:7][N:6]=1)([CH3:4])([CH3:2])[CH3:3]参加物
4
実験手順
9-{(3aR,4R,6S,6aR)-6-[5-(tert-butyl)-1,3,4-oxadiazol-2-yl]-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl}-N-(4-chloro-2-fluorophenyl)-9H -purin-6-amine (2.35 g) was dissolved in trifluoroacetic acid (20 ml) and water (2 ml) with ice bath cooling, and the mixture allowed to stand at 4° C. for 17 h. The mixture was poured slowly into ice cold saturated aqueous sodium bicarbonate (400 ml) and extracted with ethyl acetate (3×200 ml). The organic layers were washed with brine, dried (MgSO4) and evaporated in vacuo to give the title compound as a buff solid (2.30 g).