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Water → 2-Methyl-2-[(S)-5-oxo-1-((S)-1-phenyl-ethyl)-pyrrolidin-3-ylmethyl]-malonic Acid Dimethyl Ester

HRID 458024
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HRID 458024 반응식
[CH3:1][CH:2]([C:7]([O:9][CH3:10])=[O:8])[C:3]([O:5][CH3:6])=[O:4].[H-].[Na+].I[CH2:14][C@@H:15]1[CH2:19][N:18]([C@H:20]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH3:21])[C:17](=[O:28])[CH2:16]1.O>CS(C)=O>[CH3:6][O:5][C:3](=[O:4])[C:2]([CH3:1])([CH2:14][C@H:15]1[CH2:16][C:17](=[O:28])[N:18]([C@H:20]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH3:21])[CH2:19]1)[C:7]([O:9][CH3:10])=[O:8]
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참가 물질

6

반응물 4

HCID 962WaterHCID 24758Sodium hydrideHCID 69104Dimethyl methylmalonateHCID 10830178(S)-4-Iodomethyl-1-((S)-1-phenyl-ethyl)-pyrrolidin-2-one

생성물 1

HCID 590940412-Methyl-2-[(S)-5-oxo-1-((S)-1-phenyl-ethyl)-pyrrolidin-3-ylmethyl]-malonic Acid Dimethyl Ester수율 81%

시약·촉매·용매 1

HCID 679
Dimethyl Sulfoxide
용매
2회

실험 절차

To dimethyl methylmalonate (1.06 g, 7.29 mmol) in DMSO (7 mL) at room temperature was added NaH (291 mg of a 60% dispersion in oil). After the effervescence had ceased the lactam 85 (2 g, 7.29 mol) in DMSO (5 mL) was added. After 1 hour water was added and the aqueous solution extracted with ether. The combined organic extracts were dried (MgSO4) and concentrated. Flash chromatography (1:1 hexane/acetone) of the residue gave the product as an oil (1.7 g, 81%). MS m/z 348 (M+H, 100%).

후처리

  1. additionwas added
  2. extractionthe aqueous solution extracted with ether
  3. dry with materialThe combined organic extracts were dried (MgSO4)
  4. concentrationconcentrated

출처 및 근거

ORD 기록
ord-30e5fbd17ebc45b78420476ccbf0b13c
출처 데이터셋
uspto-grants-2007_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07189747B2

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