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Lithium Hydroxide → [rac]-Lithium 2-ethoxy-3-{3-methoxy-4-[2-(5-methyl-2-phenyl-oxazol-4yl)-ethoxy]-phenyl}-propionate

HRID 479189
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인쇄 미리보기

반응식

HRID 479189 반응식
C([O:3][C:4](=[O:33])[CH:5]([O:30][CH2:31][CH3:32])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][CH2:15][C:16]2[N:17]=[C:18]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[O:19][C:20]=2[CH3:21])=[C:9]([O:28][CH3:29])[CH:8]=1)C.[OH-].[Li+:35]>O1CCOCC1.O>[CH2:31]([O:30][CH:5]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][CH2:15][C:16]2[N:17]=[C:18]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=3)[O:19][C:20]=2[CH3:21])=[C:9]([O:28][CH3:29])[CH:8]=1)[C:4]([O-:33])=[O:3])[CH3:32].[Li+:35]
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참가 물질

5

반응물 2

HCID 3939Lithium HydroxideHCID 69556647[rac]-2-Ethoxy-3-{3-methoxy-4-[2-(5-methyl-2-phenyl-oxazol-4yl)-ethoxy]-phenyl}-propionic acid ethyl ester

생성물 1

HCID 131724206[rac]-Lithium 2-ethoxy-3-{3-methoxy-4-[2-(5-methyl-2-phenyl-oxazol-4yl)-ethoxy]-phenyl}-propionate수율 43.2%

시약·촉매·용매 2

HCID 962Water용매HCID 31275
1,4-Dioxane
용매

실험 절차

[rac]-2-Ethoxy-3-{3-methoxy-4-[2-(5-methyl-2-phenyl-oxazol-4yl)-ethoxy]-phenyl}-propionic acid ethyl ester (306 mg, 0.67 mmol) were dissolved in 3 ml dioxane and 2 ml water, 50 mg lithium hydroxide were added and the mixture stirred at r.t. during 24 hours. The reaction mixture was then chromatographed (MCI-gel; CH3CN/H2O) as lithium salt to yield 125 mg (43%) of the title compound as a white gum.

후처리

  1. customThe reaction mixture was then chromatographed (MCI-gel; CH3CN/H2O) as lithium salt

출처 및 근거

ORD 기록
ord-71ca2afb7bd4493083dc82835d1b1ec8
출처 데이터셋
uspto-grants-2003_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06642389B2

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