Potassium Iodide → tert-butyl 3(R)-[5-(1-benzyloxycarbonyl-4-piperidyl)-1(R)-ethoxycarbonylpentyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate

HRID 649414노트

반응식

HRID 649414 반응식
[CH2:1]([O:8][C:9]([N:11]1[CH2:16][CH2:15][CH:14]([CH2:17][CH2:18][CH2:19][CH2:20][CH:21]([NH:27][C@@H:28]2[C:34](=[O:35])[NH:33][C:32]3[CH:36]=[CH:37][CH:38]=[CH:39][C:31]=3[S:30][CH2:29]2)[C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:13][CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[CH2:41][C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43].[I-].[K+].C(=O)([O-])[O-].[K+].[K+]>O.CN(C)C=O>[CH2:1]([O:8][C:9]([N:11]1[CH2:12][CH2:13][CH:14]([CH2:17][CH2:18][CH2:19][CH2:20][C@@H:21]([NH:27][C@@H:28]2[C:34](=[O:35])[N:33]([CH2:41][C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])[C:32]3[CH:36]=[CH:37][CH:38]=[CH:39][C:31]=3[S:30][CH2:29]2)[C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:15][CH2:16]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

참가 물질

7

반응물 4

HCID 4875Potassium IodideHCID 11430Potassium CarbonateHCID 66052tert-Butyl chloroacetateHCID 704162703(R)-[5-(1-benzyloxycarbonyl-4-piperidyl)-1-ethoxycarbonylpentyl]amino-2,3-dihydro-1,5(5H)-benzothiazepin-4-one

생성물 1

HCID 54276750tert-butyl 3(R)-[5-(1-benzyloxycarbonyl-4-piperidyl)-1(R)-ethoxycarbonylpentyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate수율 37.6%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

A mixture of 3(R)-[5-(1-benzyloxycarbonyl-4-piperidyl)-1-ethoxycarbonylpentyl]amino-2,3-dihydro-1,5(5H)-benzothiazepin-4-one (1.0 g), tert-butyl chloroacetate (0.27 g), potassium iodide (0.3 g), potassium carbonate (0.24 g) and N,N-dimethylformamide (10 ml) is stirred for 15 hours at room temperature. The mixture is poured into water (50 ml) and extracted with ethyl acetate (40 ml). The extract is washed with diluted hydrochloric acid, sodium bicarbonate solution and water successively, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue is purified by silica gel column chromatography (hexane:ethyl acetate=2:1) to give firstly tert-butyl 3(R)-[5-(1-benzyloxycarbonyl-4-piperidyl)-1(R)-ethoxycarbonylpentyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetate (0.45 g) as a colorless oil.

후처리

  1. extractionextracted with ethyl acetate (40 ml)
  2. washThe extract is washed with diluted hydrochloric acid, sodium bicarbonate solution and water successively
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue is purified by silica gel column chromatography (hexane:ethyl acetate=2:1)

출처 및 근거

ORD 기록
ord-1452556bc8b04489943170665b0ce3b0
출처 데이터셋
uspto-grants-1988_04
특허 번호
US04739066

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