4-(2-Iodoethyl)-1,2-dimethoxybenzene → cis-3-(Acetyloxy)-2,3,4,5-tetrahydro-2-(4-methoxyphenyl)-N-[2-(3,4-dimethoxyphenyl)ethyl]N,N-dimethyl-4-oxo-1,5-benzothiazepine-5-ethanaminium iodide
反応式
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:9]=[CH:10][C:11]=1[O:12][CH3:13])[CH2:6][CH2:7][I:8].[CH3:14][C:15]([O:17][C@H:18]1[C:28](=[O:29])[N:27]([CH2:30][CH2:31][N:32]([CH3:34])[CH3:33])[C:26]2[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=2[S:20][C@H:19]1[C:35]1[CH:36]=[CH:37][C:38]([O:41][CH3:42])=[CH:39][CH:40]=1)=[O:16].I>C(OCC)(=O)C>[I-:8].[C:15]([O:17][C@H:18]1[C:28](=[O:29])[N:27]([CH2:30][CH2:31][N+:32]([CH2:7][CH2:6][C:5]2[CH:9]=[CH:10][C:11]([O:12][CH3:13])=[C:3]([O:2][CH3:1])[CH:4]=2)([CH3:34])[CH3:33])[C:26]2[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=2[S:20][C@H:19]1[C:35]1[CH:40]=[CH:39][C:38]([O:41][CH3:42])=[CH:37][CH:36]=1)(=[O:16])[CH3:14]参加物
4
実験手順
To a flask under argon containing 4.94 g (0.0119 mole) diltiazem was added 50 ml ethyl acetate and 3.48 g (0.0119 mole) 3,4-dimethoxyphenethyl iodide. The reaction was refluxed for 24 hr then filtered. The filtrate was washed with sodium bicarbonate and brine, dried over K2CO3, and 0.85 g 3,4-dimethoxyphenethyl iodide added and the reaction refluxed for 18 hr then filtered. The last step was repeated but 1.75 g of 3,4-dimethoxyphenethyl iodide was added and the reaction refluxed 5 hr. The filtered materials were combined and recrystallized from 95% ethanol to give a mixture of product and diltiazem hydroiodide.
後処理
- temperatureThe reaction was refluxed for 24 hr
- filtrationthen filtered
- washThe filtrate was washed with sodium bicarbonate and brine
- dry with materialdried over K2CO3, and 0.85 g 3,4-dimethoxyphenethyl iodide
- additionadded
- temperaturethe reaction refluxed for 18 hr
- filtrationthen filtered
- addition1.75 g of 3,4-dimethoxyphenethyl iodide was added
- temperaturethe reaction refluxed 5 hr
- customrecrystallized from 95% ethanol
- customto give
出典と根拠
- ORDレコード
- ord-5a01193bfccd426daa6c66d5d7335ce6
- 出典データセット
- uspto-grants-1988_03
- 特許番号
- US04729994
反応ノート
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