Chlorosuccinimide → (7R,8R,9R)-10-acetyl-3-chloro-7-(2-methoxyethoxy)-2-methyl-9-phenyl-8-pivaloyloxy-7,8,9,10-tetrahydroimidazo[1,2-h](1,7]naphthyridine

HRID 723411ノート

反応式

HRID 723411 の反応式
[C:1]([N:4]1[C:13]2[C:12]3=[N:14][C:15]([CH3:17])=[CH:16][N:11]3[CH:10]=[CH:9][C:8]=2[C@@H:7]([O:18][CH2:19][CH2:20][O:21][CH3:22])[C@H:6]([O:23][C:24](=[O:29])[C:25]([CH3:28])([CH3:27])[CH3:26])[C@H:5]1[C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1)(=[O:3])[CH3:2].C1C(=O)N([Cl:43])C(=O)C1>C(O)C>[C:1]([N:4]1[C:13]2[C:12]3=[N:14][C:15]([CH3:17])=[C:16]([Cl:43])[N:11]3[CH:10]=[CH:9][C:8]=2[C@@H:7]([O:18][CH2:19][CH2:20][O:21][CH3:22])[C@H:6]([O:23][C:24](=[O:29])[C:25]([CH3:26])([CH3:27])[CH3:28])[C@H:5]1[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=1)(=[O:3])[CH3:2]

参加物

4

反応物 2

HCID 31398ChlorosuccinimideHCID 69586206HCID 69586206、化合物

生成物 1

HCID 69586435(7R,8R,9R)-10-acetyl-3-chloro-7-(2-methoxyethoxy)-2-methyl-9-phenyl-8-pivaloyloxy-7,8,9,10-tetrahydroimidazo[1,2-h](1,7]naphthyridine

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

To a of 0° C. cooled solution of 1.00 g (2.10 mmol) (7R,8R,9R)-10-acetyl-7-(2-methoxyethoxy)-2-methyl-9-phenyl-8-pivaloyloxy-7.8.9.10-tetrahydroimidazo[1.2-h][1.7]naphthyridine in ethanol (20 ml) is added 0.28 g (2.10 mmol) NCS and the mixture is stirred for 2 h. Afterwards the reaction is quenched by adding of saturated aqueous sodium hydrogen carbonate solution and is extracted twice with dichloromethane. The combined organic layers are washed with brine, dried over sodium sulphate and evaporated in vacuo. The crude product is purified by column chromatography (ethyl acetate/cylohexane: 1/1) to provide 0.89 g (1.73 mmol/82%) of the title compound as a colourless solid with a melting point of 167–170° C. (cyclohexane).

後処理

  1. customAfterwards the reaction is quenched
  2. additionby adding of saturated aqueous sodium hydrogen carbonate solution
  3. extractionis extracted twice with dichloromethane
  4. washThe combined organic layers are washed with brine
  5. dry with materialdried over sodium sulphate
  6. customevaporated in vacuo
  7. customThe crude product is purified by column chromatography (ethyl acetate/cylohexane: 1/1)

出典と根拠

ORDレコード
ord-4b0c96600548449ebdccf22c3ae1aa59
出典データセット
uspto-grants-2006_11
特許番号
US07141567B2

反応ノート

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