Acetic Anhydride → Unii-MD4F688MJ9
反応式
Cl.[NH:2]1[CH2:7][CH2:6][CH:5]([O:8][C:9]2[CH:14]=[CH:13][C:12]([CH2:15][C:16]([N:18]3[CH2:23][CH2:22][CH:21]([N:24]4[C:29]5[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=5[CH2:27][O:26][C:25]4=[O:34])[CH2:20][CH2:19]3)=[O:17])=[C:11]([O:35][CH2:36][C:37]([F:40])([F:39])[F:38])[CH:10]=2)[CH2:4][CH2:3]1.[C:41](OC(=O)C)(=[O:43])[CH3:42].CCN(C(C)C)C(C)C>C(Cl)Cl>[C:41]([N:2]1[CH2:3][CH2:4][CH:5]([O:8][C:9]2[CH:14]=[CH:13][C:12]([CH2:15][C:16]([N:18]3[CH2:23][CH2:22][CH:21]([N:24]4[C:29]5[CH:30]=[CH:31][CH:32]=[CH:33][C:28]=5[CH2:27][O:26][C:25]4=[O:34])[CH2:20][CH2:19]3)=[O:17])=[C:11]([O:35][CH2:36][C:37]([F:40])([F:38])[F:39])[CH:10]=2)[CH2:6][CH2:7]1)(=[O:43])[CH3:42]参加物
5
実験手順
To a solution of 1-(1-(4-(4-piperidinyloxy)-2-(2,2,2-trifluoroethoxy)phenylacetyl)piperidin-4-yl)-4H-3,1-benzoxazin-2(1H)-one hydrochloride (0.90 g, 1.5 mmol) from Example 2 in CH2Cl2 (50 mL) was added acetic anhydride (0.31 mL, 3.0 mmol) and DIEA (0.52 mL, 3.0 mmol). The solution was stirred at ambient temperature for 1 h and the solvent was removed under reduced pressure. The residue was dissolved in EtOAc (100 mL) and washed with 0.25 M aqueous citric acid (50 mL), H2O (25 mL), and saturated aqueous NaHCO3 (75 mL). The organic phase was dried (MgSO4), filtered, and the solvent was removed under reduced pressure to give the title compound as an amorphous solid.