反応式
[NH:1]1[C:9]2[CH2:8][CH2:7][N:6]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:5][C:4]=2[CH:3]=[C:2]1[C:17]([O:19][CH2:20][CH3:21])=[O:18].[H-].[Na+].[CH3:24]I>C1COCC1>[CH3:24][N:1]1[C:9]2[CH2:8][CH2:7][N:6]([C:10]([O:12][C:13]([CH3:16])([CH3:15])[CH3:14])=[O:11])[CH2:5][C:4]=2[CH:3]=[C:2]1[C:17]([O:19][CH2:20][CH3:21])=[O:18]参加物
5
実験手順
To a solution of 5-tert-butyl 2-ethyl 1,4,6,7-tetrahydro-5H-pyrrolo[3,2-c]pyridine-2,5-dicarboxylate (1.0 eq) in THF at 0° C. was added NaH (1.2 eq) and stirred for half an hour at room temperature. Methyl iodide (1.3 eq) was added and resulting reaction mixture was stirred for 3 hrs. Reaction mixture was then quenched with water and extracted with ethyl acetate, dried over sodium sulphate and concentrated to dryness. Crude mass was then purified by silica gel column chromatography to afford 5-tert-butyl 2-ethyl 1-methyl-1,4,6,7-tetrahydro-5H-pyrrolo[3,2-c]pyridine-2,5-dicarboxylate.
後処理
- customresulting
- customreaction mixture
- stirringwas stirred for 3 hrs
- customReaction mixture
- customwas then quenched with water
- extractionextracted with ethyl acetate
- dry with materialdried over sodium sulphate
- concentrationconcentrated to dryness
- customCrude mass was then purified by silica gel column chromatography
出典と根拠
- ORDレコード
- ord-bd144e7436764823bf42c0c4d1686669
- 出典データセット
- uspto-grants-2013_05
- 特許番号
- US08440830B2
関連ノート
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