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 980621노트

반응식

HRID 980621 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-8fd5a3fb5c81479f9832aeda52ace02e
출처 데이터셋
uspto-grants-1987_01
특허 번호
US04638000

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