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Potassium tert-butoxide → (2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-((4-ethoxyisoquinolin-1-yl)oxy)pyrrolidine-2-carboxylic acid

HRID 1852185
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HRID 1852185 반응식
[C:1]([O:5][C:6]([NH:8][CH:9]([C@H:21]([CH3:29])[CH2:22][CH:23]([CH3:28])[CH2:24][CH2:25][CH:26]=[CH2:27])[C:10]([N:12]1[CH2:16][C@H:15]([OH:17])[CH2:14][C@H:13]1[C:18]([OH:20])=[O:19])=[O:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl[C:31]1[C:40]2[C:35](=[CH:36][CH:37]=[CH:38][CH:39]=2)[C:34]([O:41][CH2:42][CH3:43])=[CH:33][N:32]=1.CC([O-])(C)C.[K+]>CS(C)=O>[C:1]([O:5][C:6]([NH:8][CH:9]([C@H:21]([CH3:29])[CH2:22][CH:23]([CH3:28])[CH2:24][CH2:25][CH:26]=[CH2:27])[C:10]([N:12]1[CH2:16][C@H:15]([O:17][C:31]2[C:40]3[C:35](=[CH:36][CH:37]=[CH:38][CH:39]=3)[C:34]([O:41][CH2:42][CH3:43])=[CH:33][N:32]=2)[CH2:14][C@H:13]1[C:18]([OH:20])=[O:19])=[O:11])=[O:7])([CH3:4])([CH3:3])[CH3:2]
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참가 물질

5

반응물 3

HCID 23665647Potassium tert-butoxideHCID 866832431-Chloro-4-ethoxyisoquinolineHCID 86683245(2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-hydroxypyrrolidine-2-carboxylic acid

생성물 1

HCID 86683246(2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-((4-ethoxyisoquinolin-1-yl)oxy)pyrrolidine-2-carboxylic acid수율 64.2%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

실험 절차

To a solution of (2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-hydroxypyrrolidine-2-carboxylic acid (700 mg, 1.6 mmole) in DMSO was added 1-chloro-4-ethoxyisoquinoline (420 mg, 2.0 mmole), prepared above, followed by t-BuOK (1M sol. in THF, 8 mL, 8 mmole) at room temperature under nitrogen atmosphere. The reaction mass was stirred at room temperature for 4 h. The reaction mass was quenched with aqueous citric acid solution and extracted with ethyl acetate. The combined organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to get crude compound. The crude compound was purified by combiflash to get desired product (2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-((4-ethoxyisoquinolin-1-yl)oxy)pyrrolidine-2-carboxylic acid (600 mg, 64%) as off-white solid. MS: MS m/z 585.1 (M++1).

후처리

  1. customprepared above,
  2. customThe reaction mass was quenched with aqueous citric acid solution
  3. extractionextracted with ethyl acetate
  4. dry with materialThe combined organic layer was dried over anhydrous Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customto get crude compound
  7. customThe crude compound was purified by combiflash

출처 및 근거

ORD 기록
ord-e318088435c144368e8c6b2ccef963b0
출처 데이터셋
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08957203B2

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