1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → tert-Butyl cis(+/-)-3-(benzyloxy)-4-[(1H-imidazol-2-ylcarbonyl)amino]piperidine-1-carboxylate

HRID 43556노트

반응식

HRID 43556 반응식
[NH2:1][C@H:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4][C@H:3]1[O:15][CH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.[NH:23]1[CH:27]=[CH:26][N:25]=[C:24]1[C:28](O)=[O:29].CCN=C=NCCCN(C)C>CC(N(C)C)=O.CN(C1C=CN=CC=1)C.ClCCl>[CH2:16]([O:15][C@H:3]1[C@@H:2]([NH:1][C:28]([C:24]2[NH:23][CH:27]=[CH:26][N:25]=2)=[O:29])[CH2:7][CH2:6][N:5]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[CH2:4]1)[C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1

참가 물질

7

반응물 3

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 5743211H-Imidazole-2-carboxylic acidHCID 86648571tert-Butyl cis(+/-)-4-amino-3-(benzyloxy)piperidine-1-carboxylate

생성물 1

HCID 86648572tert-Butyl cis(+/-)-3-(benzyloxy)-4-[(1H-imidazol-2-ylcarbonyl)amino]piperidine-1-carboxylate수율 46%

시약·촉매·용매 3

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매HCID 31374Dimethylacetamide용매

실험 절차

tert-Butyl cis(±)-4-amino-3-(benzyloxy)piperidine-1-carboxylate obtained in Example (90d) (0.92 g, 3.0 mmol) was dissolved in DMA (10 mL). 1H-Imidazol-2-ylcarboxylic acid (0.19 g, 1.70 mmol), WSC (0.82 g, 0.43 mmol) and DMAP (60 mg, 0.49 mmol) were added, and the mixture was stirred at room temperature for one hour. The reaction solution was diluted with dichloromethane, washed with water and brine, and dried over anhydrous magnesium sulfate. Following concentration under reduced pressure, the residue was purified by silica gel column chromatography (elution solvent: hexane/ethyl acetate=2/1, 1/1, 1/3) to obtain 0.31 g of the title compound as a colorless solid (46%).

후처리

  1. washwashed with water and brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. concentrationconcentration under reduced pressure
  4. customthe residue was purified by silica gel column chromatography (elution solvent: hexane/ethyl acetate=2/1, 1/1, 1/3)

출처 및 근거

ORD 기록
ord-6ada824c5f7d49eabc652f587934db6c
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08536197B2

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