Epibromohydrin → 3-[(S)-(4-chlorophenyl)(3-hydroxyazetidin-1-yl)methyl]benzonitrile
反応式
Cl.Cl[CH2:3][CH:4]([OH:23])[CH2:5][NH:6][C@@H:7]([C:16]1[CH:21]=[CH:20][C:19]([Cl:22])=[CH:18][CH:17]=1)[C:8]1[CH:9]=[C:10]([CH:13]=[CH:14][CH:15]=1)[C:11]#[N:12].C([O-])(O)=O.[Na+].C(C1OC1)Br>C(O)(C)C>[Cl:22][C:19]1[CH:20]=[CH:21][C:16]([C@H:7]([N:6]2[CH2:5][CH:4]([OH:23])[CH2:3]2)[C:8]2[CH:9]=[C:10]([CH:13]=[CH:14][CH:15]=2)[C:11]#[N:12])=[CH:17][CH:18]=1参加物
実験手順
To a mixture of 20.27 g (72.6 mmole) of 3-[(S)-[(3-chloro-2-hydroxypropyl)amino](4-chlorophenyl)methyl]benzonitrile hydrochloride and 21.3 g (245 mmole) of NaHCO3 in 600 mL of isopropanol was added 14.4 mL (174 mmole) of epibromohydrin . The mixture was heated to reflux for 24 h, then was cooled and concentrated. The residue was partitioned between 750 mL portions of ether and water and the aqueous layer was washed with two 500 mL portions of ether. The combined organic extracts were washed with brine, dried over MgSO4 and concentrated. The residue was purified by flash chromatography using 10-20% ethyl acetate in hexane to afford the title compound as a clear oil; 1H-NMR(CDCl3) δ 1.6 (s, 2H, br), 5.24 (s, 1H), 7.24-7.78 (m, 8H).2.89 (m, 2H), 3.54 (m, 2H), 4.39 (s, 1H), 4.52 (m, 1H), 7.2-7.8 (m, 8H).
後処理
- temperatureThe mixture was heated
- temperatureto reflux for 24 h
- temperaturewas cooled
- concentrationconcentrated
- customThe residue was partitioned between 750 mL portions of ether and water
- washthe aqueous layer was washed with two 500 mL portions of ether
- washThe combined organic extracts were washed with brine
- dry with materialdried over MgSO4
- concentrationconcentrated
- customThe residue was purified by flash chromatography
出典と根拠
- ORDレコード
- ord-5ab861e0475e4a998b1e9288d89beb1c
- 出典データセット
- uspto-grants-2011_03
- 特許番号
- US07906652B2
反応ノート
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