反応式
[F:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][N:8]=[C:7]([CH:10]3[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]3)[C:6]=2[CH:16]=1.[C:17]([O:21][C:22](=[O:33])[NH:23][C@H:24]1[CH2:29][CH2:28][C@H:27]([CH2:30][CH:31]=O)[CH2:26][CH2:25]1)([CH3:20])([CH3:19])[CH3:18].C(N(CC)CC)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[C:17]([O:21][C:22](=[O:33])[NH:23][C@H:24]1[CH2:25][CH2:26][C@H:27]([CH2:30][CH2:31][N:13]2[CH2:12][CH2:11][CH:10]([C:7]3[C:6]4[CH:16]=[C:2]([F:1])[CH:3]=[CH:4][C:5]=4[O:9][N:8]=3)[CH2:15][CH2:14]2)[CH2:28][CH2:29]1)([CH3:20])([CH3:19])[CH3:18]参加物
6
実験手順
A mixture of 5-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole (1.3 g, 5 mmol), trans-[4-(2-oxo-ethyl)-cyclohexyl]-carbamic acid tert-butyl ester (example 1, intermediate C) (1.6 g, 6 mmol), triethylamine (0.64 mL, 5 mmol) in 1,2 dichloroethane (27 mL) was stirred for 4 h at room temperature and sodium triacetoxyborohydride (1.9 g, 9 mmol) was added slowly and the resulting solution was stirred for 12 hours until the TLC indicated completion of the reaction. The mixture was filtrated and concentrated to dryness and purified with column chromatography on silica gel using CH2Cl2—CH2Cl2/MeOH (1-9:1). The product fractions were concentrated to give 2.3 g (5.1 mmol, 100% yield) of a off-white solid. MS (m/e): 446.3 (M+H+).
後処理
- stirringthe resulting solution was stirred for 12 hours until the TLC
- customcompletion of the reaction
- filtrationThe mixture was filtrated
- concentrationconcentrated to dryness
- custompurified with column chromatography on silica gel
- concentrationThe product fractions were concentrated
出典と根拠
- ORDレコード
- ord-376f96ff0f514fed88ddc6e5c17bd469
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08829029B2
関連ノート
読み込み中…