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Triethylamine → tert-butyl 3(R)-[1(R)-ethoxycarbonyl-6-phthalimidohexyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate

HRID 649415
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HRID 649415 반응식
[NH2:1][C@@H:2]1[C:8](=[O:9])[N:7]([CH2:10][C:11]([O:13][C:14]([CH3:17])([CH3:16])[CH3:15])=[O:12])[C:6]2[CH:18]=[CH:19][CH:20]=[CH:21][C:5]=2[S:4][CH2:3]1.Br[CH:23]([CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][N:34]1[C:38](=[O:39])[C:37]2=[CH:40][CH:41]=[CH:42][CH:43]=[C:36]2[C:35]1=[O:44])[C:24]([O:26][CH2:27][CH3:28])=[O:25].C(N(CC)CC)C>C(#N)C>[CH2:27]([O:26][C:24]([C@H:23]([NH:1][C@@H:2]1[C:8](=[O:9])[N:7]([CH2:10][C:11]([O:13][C:14]([CH3:16])([CH3:17])[CH3:15])=[O:12])[C:6]2[CH:18]=[CH:19][CH:20]=[CH:21][C:5]=2[S:4][CH2:3]1)[CH2:29][CH2:30][CH2:31][CH2:32][CH2:33][N:34]1[C:35](=[O:44])[C:36]2=[CH:43][CH:42]=[CH:41][CH:40]=[C:37]2[C:38]1=[O:39])=[O:25])[CH3:28]
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참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 13454543tert-butyl 3(R)-amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetateHCID 13622532Ethyl 2-bromo-7-phthalimidoheptanoate

생성물 1

HCID 13622542tert-butyl 3(R)-[1(R)-ethoxycarbonyl-6-phthalimidohexyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate수율 25.3%

시약·촉매·용매 1

HCID 6342
Acetonitrile
용매

실험 절차

In 100 ml of acetonitrile are dissolved 2 g of tert-butyl 3(R)-amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate and 7.4 g of ethyl 2-bromo-7-phthalimidoheptanoate, and 0.85 g of triethylamine is added to the solution. After the mixture is heated at 80°-100° C. for 2 days, the mixture is concentrated under reduced pressure, diluted with 100 ml of water and extracted with 200 ml of ethyl acetate. The ethyl acetate layer is dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The resulting oily substance is separated and purified by silicagel column chromatography (hexane:ethyl acetate=2:1) to give from the first fraction 1.0 g of tert-butyl 3(R)-[1(R)-ethoxycarbonyl-6-phthalimidohexyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate as a colorless oil.

후처리

  1. additionis added to the solution
  2. temperatureAfter the mixture is heated at 80°-100° C. for 2 days
  3. concentrationthe mixture is concentrated under reduced pressure
  4. additiondiluted with 100 ml of water
  5. extractionextracted with 200 ml of ethyl acetate
  6. dry with materialThe ethyl acetate layer is dried over anhydrous magnesium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe resulting oily substance is separated
  9. custompurified by silicagel column chromatography (hexane:ethyl acetate=2:1)

출처 및 근거

ORD 기록
ord-d242cb9724fc47a5a5c3a20eae43d8b4
출처 데이터셋
uspto-grants-1988_04
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04739066

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