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N-((1,1-dimethylethoxy)carbonyl)-beta-alanine → (S)-3-tert-Butoxycarbonylamino-1-[4-({[2-(2,3-dihydrobenzofuran-5-yl)-1-methylethyl]ethylamino}methyl)piperidin-1-yl]-propan-1-one

HRID 429831
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HRID 429831 반응식
[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][C:11]([OH:13])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].[O:14]1[C:18]2[CH:19]=[CH:20][C:21]([CH2:23][C@@H:24]([N:26]([CH2:29][CH:30]3[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]3)[CH2:27][CH3:28])[CH3:25])=[CH:22][C:17]=2[CH2:16][CH2:15]1>ClCCl>[C:1]([O:5][C:6]([NH:8][CH2:9][CH2:10][C:11]([N:33]1[CH2:34][CH2:35][CH:30]([CH2:29][N:26]([C@@H:24]([CH3:25])[CH2:23][C:21]2[CH:20]=[CH:19][C:18]3[O:14][CH2:15][CH2:16][C:17]=3[CH:22]=2)[CH2:27][CH3:28])[CH2:31][CH2:32]1)=[O:13])=[O:7])([CH3:2])([CH3:3])[CH3:4]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

4

반응물 2

HCID 76809N-((1,1-dimethylethoxy)carbonyl)-beta-alanineHCID 15546287(S)-N-[2-(2,3-dihydrobenzofuran-5-yl)-1-methylethyl]-N-ethyl-(piperidin-4-ylmethyl)amine

생성물 1

HCID 54233503(S)-3-tert-Butoxycarbonylamino-1-[4-({[2-(2,3-dihydrobenzofuran-5-yl)-1-methylethyl]ethylamino}methyl)piperidin-1-yl]-propan-1-one수율 97.2%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

To a solution of N-tert-butoxycarbonyl-β-alanine (0.31 grams, 165 mmole) in dichloromethane (5 ml) was added N,N′-carbonyldiimidazole (0.3 grams, 185 mmole). The reaction mixture was stirred at room temperature for 2 hours. To the reaction mixture was added a solution of (S)-N-[2-(2,3-dihydrobenzofuran-5-yl)-1-methylethyl]-N-ethyl-(piperidine-4-ylmethyl)amine (0.5 grams, 1.65 mmole) in dichloromethane (2 ml). The reaction mixture was stirred for 16 hours. The solvent was evaporated and the residue was purified by flash chromatography on silica gel using 2% methanol in dichloromethane containing 0.1% ammonium hydroxide. Appropriate fractions were combined and concentrated to give (S)-3-tert-butoxycarbonylamino-1-[4-({[2-(2,3-dihydrobenzofuran-5-yl)-1-methylethyl]-ethylamino}methyl)piperidin-1-yl]propan-1-one as a solid (0.76 grams, 97%).

후처리

  1. stirringThe reaction mixture was stirred for 16 hours
  2. customThe solvent was evaporated
  3. customthe residue was purified by flash chromatography on silica gel using 2% methanol in dichloromethane containing 0.1% ammonium hydroxide
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-5ca099bd3998408abc74940048be0e87
출처 데이터셋
uspto-grants-2001_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06319920B1

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