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Potassium Iodide → benzyl 3(S)-tert-butoxycarbonylamino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate

HRID 280920
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HRID 280920 반응식
[C:1]([O:5][C:6]([NH:8][C@@H:9]1[C:15](=[O:16])[NH:14][C:13]2[CH:17]=[CH:18][CH:19]=[CH:20][C:12]=2[O:11][CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl[CH2:22][C:23]([O:25][CH2:26][C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1)=[O:24].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CN(C)C=O.O>[C:1]([O:5][C:6]([NH:8][C@@H:9]1[C:15](=[O:16])[N:14]([CH2:22][C:23]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)=[O:24])[C:13]2[CH:17]=[CH:18][CH:19]=[CH:20][C:12]=2[O:11][CH2:10]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
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참가 물질

7

반응물 4

HCID 4875Potassium IodideHCID 8786Acetic acid, 2-chloro-, phenylmethyl esterHCID 11430Potassium CarbonateHCID 18599719(S)-tert-Butyl (4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)carbamate

생성물 1

HCID 18599734benzyl 3(S)-tert-butoxycarbonylamino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate수율 62.1%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

In 150 ml of N,N-dimethylformamide is dissolved 12.3 g of 3(S)-tert-butoxycarbonylamino-2,3,4,5-tetrahydro-1,5-benzoxazepine-4-one, and 8.7 g of benzyl chloroacetate, 8.7 g of anhydrous potassium carbonate and 1 g of potassium iodide are added to the solution. After stirring for 15 hours, the mixture is poured in ice-cooled water. The deposited material is collected by filtration, washed with water and recrystallized from ethyl acetate-hexane to give 11.7 g of benzyl 3(S)-tert-butoxycarbonylamino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetate as colorless prisms, melting at 122°-124° C.

후처리

  1. additionare added to the solution
  2. additionthe mixture is poured in ice-
  3. filtrationThe deposited material is collected by filtration
  4. washwashed with water
  5. customrecrystallized from ethyl acetate-hexane

출처 및 근거

ORD 기록
ord-8eb2728b233e48a1aef8fcfbca1e8f62
출처 데이터셋
uspto-grants-1986_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04591458

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