Methanol → 2-(4-methanesulfonyl-phenyl)-3-[2-(tetrahydropyran-2-yloxy)-cyclopentyl]-N-thiazol-2-yl-propionamide

HRID 854780

반응식

HRID 854780 반응식
[NH2:1][C:2]1[S:3][CH:4]=[CH:5][N:6]=1.C[O:8][C:9](=O)[CH:10]([C:24]1[CH:29]=[CH:28][C:27]([S:30]([CH3:33])(=[O:32])=[O:31])=[CH:26][CH:25]=1)[CH2:11][CH:12]1[CH2:16][CH2:15][CH2:14][CH:13]1[O:17][CH:18]1[CH2:23][CH2:22][CH2:21][CH2:20][O:19]1.C[O-].[Mg+2].C[O-].CO>>[CH3:33][S:30]([C:27]1[CH:26]=[CH:25][C:24]([CH:10]([CH2:11][CH:12]2[CH2:16][CH2:15][CH2:14][CH:13]2[O:17][CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][O:19]2)[C:9]([NH:1][C:2]2[S:3][CH:4]=[CH:5][N:6]=2)=[O:8])=[CH:29][CH:28]=1)(=[O:32])=[O:31]

참가 물질

5

반응물 4

HCID 887MethanolHCID 21552-AminothiazoleHCID 164537Methanol, magnesium salt (2:1)HCID 674821442-(4-Methanesulfonyl-phenyl)-3-[2-(tetrahydropyran-2-yloxy)-cyclopentyl]-propionic acid methyl ester

생성물 1

HCID 219590442-(4-methanesulfonyl-phenyl)-3-[2-(tetrahydropyran-2-yloxy)-cyclopentyl]-N-thiazol-2-yl-propionamide수율 38%

반응 조건

온도
25 °C

실험 절차

2-Aminothiazole (314.3 mg, 3.14 mmol) and 2-(4-methanesulfonyl-phenyl)-3-[2-(tetrahydropyran-2-yloxy)-cyclopentyl]-propionic acid methyl ester (859.2 g, 2.09 mmol) were treated with a solution of magnesium methoxide in methanol (7.4 wt. % , 12 mL, 8.37 mmol). The resulting reaction mixture was heated under reflux for 24 h. The reaction mixture was allowed to cool to 25° C. and then filtered through a pad of celite. The pad of celite was washed well with ethyl acetate until the washings indicated the absence of product by thin layer chromatography. The filtrate was then washed with a 10% aqueous hydrochloric acid solution 3×100 mL). The organic layer was then dried over magnesium sulfate, filtered, and concentrated in vacuo. Flash chromatography (Merck Silica gel 60, 70-230 mesh, 1/1 hexanes/ethyl acetate) afforded 2-(4-methanesulfonyl-phenyl)-3-[2-(tetrahydropyran-2-yloxy)-cyclopentyl]-N-thiazol-2-yl-propionamide (377.4 mg, 38%) as a yellow oil: EI-HRMS m/e calcd for C23H30N2O5S2 (M+) 478.1596. found 478.1604.

후처리

  1. customThe resulting reaction mixture
  2. temperaturewas heated
  3. temperatureunder reflux for 24 h
  4. filtrationfiltered through a pad of celite
  5. washThe pad of celite was washed well with ethyl acetate until the washings
  6. washThe filtrate was then washed with a 10% aqueous hydrochloric acid solution 3×100 mL)
  7. dry with materialThe organic layer was then dried over magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-077eead4e70a4a7a8f0b1ec8b5008dcd
출처 데이터셋
uspto-grants-2007_08
특허 번호
US07259166B2

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