Triethylamine → 2-[4-(4-Acetoxypiperidin-1-carbonyl)benzyl]-3-isopropylmaleic acid dimethyl ester

HRID 1774407노트

반응식

HRID 1774407 반응식
[CH3:1][O:2][C:3](=[O:23])/[C:4](/[CH2:13][C:14]1[CH:19]=[CH:18][C:17]([C:20](O)=[O:21])=[CH:16][CH:15]=1)=[C:5](/[CH:10]([CH3:12])[CH3:11])\[C:6]([O:8][CH3:9])=[O:7].ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.Cl.[C:47]([O:50][CH:51]1[CH2:56][CH2:55][NH:54][CH2:53][CH2:52]1)(=[O:49])[CH3:48].C(N(CC)CC)C>ClCCl.O.CCCCCC.C(OCC)(=O)C>[CH3:1][O:2][C:3](=[O:23])/[C:4](/[CH2:13][C:14]1[CH:19]=[CH:18][C:17]([C:20]([N:54]2[CH2:55][CH2:56][CH:51]([O:50][C:47](=[O:49])[CH3:48])[CH2:52][CH2:53]2)=[O:21])=[CH:16][CH:15]=1)=[C:5](/[CH:10]([CH3:11])[CH3:12])\[C:6]([O:8][CH3:9])=[O:7]

참가 물질

9

반응물 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 12694334Piperidin-4-yl acetate hydrochlorideHCID 666486782-(4-Carboxybenzyl)-3-isopropylmaleic acid dimethyl ester

생성물 1

HCID 597065112-[4-(4-Acetoxypiperidin-1-carbonyl)benzyl]-3-isopropylmaleic acid dimethyl ester수율 78%

시약·촉매·용매 3

HCID 962Water용매HCID 6344Dichloromethane용매HCID 21226206Ethyl acetate hexane용매

실험 절차

To a solution of 2-(4-carboxybenzyl)-3-isopropylmaleic acid dimethyl ester (10.3 mg, 0.0322 mmol) in dichloromethane (500 μL) were added 1-hydroxybenzotriazole (13.3 mg, 0.0965 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (20.8 mg, 0.109 mol), piperidin-4-yl acetate hydrochloride (28.8 mg, 0.161 mmol) and triethylamine (14.6 mg, 0.145 mmol) with stirring under ice cooling. After stirring at room temperature for 1 h, the reaction mixture was diluted with water to separate the phases. The aqueous layer was extracted again with ethyl acetate, and the combined organic layer was concentrated under reduced pressure and the residue thus obtained was subjected to silica gel column chromatography (hexane-ethyl acetate 1:2) to give 11.1 mg of the title compound as a solid (yield: 78%).

후처리

  1. stirringAfter stirring at room temperature for 1 h
  2. customto separate the phases
  3. extractionThe aqueous layer was extracted again with ethyl acetate
  4. concentrationthe combined organic layer was concentrated under reduced pressure
  5. customthe residue thus obtained

출처 및 근거

ORD 기록
ord-7c8906d7fc874e3a81c897809b296003
출처 데이터셋
uspto-grants-2016_02
특허 번호
US09260375B2

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