Water → HCID 58452431、化合物
反応式
Cl[Si](C)(C)C.[I-].[K+].[CH:8]1([C:11]2[CH:12]=[CH:13][C:14]([CH:19]([C:27]3[CH:32]=[CH:31][C:30]([O:33][CH2:34][CH3:35])=[C:29]([F:36])[CH:28]=3)[CH2:20][C@@H:21]3[NH:25][C:24](=[O:26])[CH2:23][CH2:22]3)=[N:15][C:16]=2[O:17]C)[CH2:10][CH2:9]1.O>C(#N)C>[CH:8]1([C:11]2[C:16](=[O:17])[NH:15][C:14]([CH:19]([C:27]3[CH:32]=[CH:31][C:30]([O:33][CH2:34][CH3:35])=[C:29]([F:36])[CH:28]=3)[CH2:20][C@H:21]3[CH2:22][CH2:23][C:24](=[O:26])[NH:25]3)=[CH:13][CH:12]=2)[CH2:10][CH2:9]1参加物
反応条件
- 温度
- 50 °C
実験手順
Chlorotrimethylsilane (0.17 mL) and potassium iodide (370 mg) were added to a solution of (5R)-5-[2-(5-cyclopropyl-6-methoxypyridin-2-yl)-2-(4-ethoxy-3-fluorophenyl)ethyl]pyrrolidin-2-one (222 mg) in acetonitrile (4.4 mL) at room temperature, and then the mixture was stirred at 50° C. for one hour. Water was added to the reaction solution, followed by extraction with ethyl acetate. The organic layer was washed with water and brine, dried over anhydrous magnesium sulfate and filtered, after which the solvent was evaporated under reduced pressure. One diastereomer (A) of the title compound was obtained as a white solid (71 mg, 33% (two steps)) by separating the residue by preparative HPLC (CHIRALPAK IB (20 mm i.d.×250 mm L, Daicel Chemical Industries, LTD.), 40° C., flow rate: 10 mL/min, ethanol:hexane=40:60) and concentrating the fraction eluted with a retention time of 13 minutes. The fraction eluted with a retention time of 28 minutes was concentrated to give the other diastereomer (B) of the title compound as a white solid (71 mg, 33% (two steps)).
後処理
- extractionfollowed by extraction with ethyl acetate
- washThe organic layer was washed with water and brine
- dry with materialdried over anhydrous magnesium sulfate
- filtrationfiltered
- customafter which the solvent was evaporated under reduced pressure
出典と根拠
- ORDレコード
- ord-4ce1bb5d0e3a4222a91f6cd07372f579
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08822503B2
反応ノート
読み込み中…