N-bromobutanimide → HCID 69586421, 화합물

HRID 723409노트

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HRID 723409 반응식
[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([Br: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]([Br: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]

참가 물질

4

반응물 2

HCID 67184N-bromobutanimideHCID 69586206HCID 69586206, 화합물

생성물 1

HCID 69586421HCID 69586421, 화합물

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

To a of 0° C. cooled solution of 2.20 g (4.60 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 0.84 g (4.60 mmol) NBS and the mixture is stirred for 1 h. Afterwards the reaction is quenched by adding of saturated aqueous sodium hydrogen carbonate solution and it 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 crystallisation (cyclohexane) to give 1.60 g (2.86 mmol/62%) of the title compound as a colourless solid with a melting point of 166–167° C. (cyclohexane).

후처리

  1. customAfterwards the reaction is quenched
  2. additionby adding of saturated aqueous sodium hydrogen carbonate solution and it
  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 crystallisation (cyclohexane)

출처 및 근거

ORD 기록
ord-abc098ec362d4c02a57e887d18cef8c7
출처 데이터셋
uspto-grants-2006_11
특허 번호
US07141567B2

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