Cesium carbonate → (2-Methyl-4-{1-[2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-ethylsulfanyl}-phenoxy)-acetic acid tert-butyl ester

HRID 1242308노트

반응식

HRID 1242308 반응식
Cl[CH:2]([C:4]1[C:5]([CH3:20])=[N:6][C:7]([C:10]2[CH:15]=[CH:14][C:13]([C:16]([F:19])([F:18])[F:17])=[CH:12][CH:11]=2)=[CH:8][CH:9]=1)[CH3:3].[C:21]([O:25][C:26](=[O:40])[CH2:27][O:28][C:29]1[CH:34]=[CH:33][C:32]([S:35]C(=O)C)=[CH:31][C:30]=1[CH3:39])([CH3:24])([CH3:23])[CH3:22].C(OC(=O)COC1C=CC(S)=CC=1C)(C)(C)C.C([O-])([O-])=O.[Cs+].[Cs+]>C(#N)C.CO>[C:21]([O:25][C:26](=[O:40])[CH2:27][O:28][C:29]1[CH:34]=[CH:33][C:32]([S:35][CH:2]([C:4]2[C:5]([CH3:20])=[N:6][C:7]([C:10]3[CH:15]=[CH:14][C:13]([C:16]([F:19])([F:18])[F:17])=[CH:12][CH:11]=3)=[CH:8][CH:9]=2)[CH3:3])=[CH:31][C:30]=1[CH3:39])([CH3:24])([CH3:23])[CH3:22]

참가 물질

7

반응물 4

HCID 10796Cesium carbonateHCID 11572955(4-Acetylsulfanyl-2-methyl-phenoxy)-acetic acid tert-butyl esterHCID 21935947[Rac]-3-(1-chloro-ethyl)-2-methyl-6-(4-trifluoromethyl-phenyl)-pyridineHCID 67072235(4-Mercapto-2-methyl-phenoxy)-acetic acid tert-butyl ester

생성물 1

HCID 67072330(2-Methyl-4-{1-[2-methyl-6-(4-trifluoromethyl-phenyl)-pyridin-3-yl]-ethylsulfanyl}-phenoxy)-acetic acid tert-butyl ester수율 54.1%

시약·촉매·용매 2

HCID 887Methanol용매HCID 6342Acetonitrile용매

실험 절차

0.224 g (0.75 mmol) of [rac]-3-(1-chloro-ethyl)-2-methyl-6-(4-trifluoromethyl-phenyl)-pyridine and 0.222 g (0.75 mmol) of (4-acetylsulfanyl-2-methyl-phenoxy)-acetic acid tert-butyl ester (prepared by standard acetylation of (4-mercapto-2-methyl-phenoxy)-acetic acid tert-butyl ester, described below in example 28A)-C]) were dissolved in 3.9 ml of acetonitrile and 0.2 ml of MeOH and treated with 0.292 g (1.2 eq.) of Cs2CO3. The reaction was then allowed to proceed over night. Pouring onto crashed ice, twofold extraction with AcOEt, washing with water, drying over sodium sulfate, and evaporation of the solvents, followed by flash chromatography (SiO2, hexane/AcOEt=9/1), afforded in the less polar fractions 0.210 g of pure title compound and in the more polar fractions 0.112 g of the corresponding methyl ester as waxy solid.

후처리

  1. waitto proceed over night
  2. additionPouring
  3. extractionice, twofold extraction with AcOEt
  4. washwashing with water
  5. dry with materialdrying over sodium sulfate, and evaporation of the solvents

출처 및 근거

ORD 기록
ord-968dc1aa0be344afac3905b975d49e93
출처 데이터셋
uspto-grants-2006_10
특허 번호
US07115611B2

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