Cesium carbonate → [4-Difluoromethoxy-2-ethyl-8-fluoro-3-(4-pyrimidin-2-yl-benzyl)quinolin-5-yloxy]acetic acid

HRID 1944300노트

반응식

HRID 1944300 반응식
C[O:2][C:3](=[O:39])[CH2:4][O:5][C:6]1[CH:15]=[CH:14][C:13]([F:16])=[C:12]2[C:7]=1[C:8]([O:35][CH:36]([F:38])[F:37])=[C:9]([CH2:19][C:20]1[CH:25]=[CH:24][C:23](B3OC(C)(C)C(C)(C)O3)=[CH:22][CH:21]=1)[C:10]([CH2:17][CH3:18])=[N:11]2.Br[C:41]1[N:46]=[CH:45][CH:44]=[CH:43][N:42]=1.O1CCOCC1.C(=O)([O-])[O-].[Cs+].[Cs+]>C(OCC)(=O)C>[F:38][CH:36]([F:37])[O:35][C:8]1[C:7]2[C:12](=[C:13]([F:16])[CH:14]=[CH:15][C:6]=2[O:5][CH2:4][C:3]([OH:2])=[O:39])[N:11]=[C:10]([CH2:17][CH3:18])[C:9]=1[CH2:19][C:20]1[CH:21]=[CH:22][C:23]([C:41]2[N:46]=[CH:45][CH:44]=[CH:43][N:42]=2)=[CH:24][CH:25]=1

참가 물질

6

반응물 4

HCID 10796Cesium carbonateHCID 312751,4-DioxaneHCID 783452-BromopyrimidineHCID 67458783{4-Difluoromethoxy-2-ethyl-8-fluoro-3-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzyl]quinolin-5-yloxy}acetic acid methyl ester

생성물 1

HCID 25096075[4-Difluoromethoxy-2-ethyl-8-fluoro-3-(4-pyrimidin-2-yl-benzyl)quinolin-5-yloxy]acetic acid수율 23.7%

시약·촉매·용매 1

HCID 8857Ethyl Acetate용매

반응 조건

온도
110 °C

실험 절차

A mixture of {4-difluoromethoxy-2-ethyl-8-fluoro-3-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzyl]quinolin-5-yloxy}acetic acid methyl ester (0.10 g), 2-bromopyrimidine (0.076 g), [1,1-bis(diphenylphosphino)ferrocene]dichloropalladium (0.016 g), 1,4-dioxane (2.0 mL) and 2.0M aqueous cesium carbonate solution (0.38 mL) was heated by microwave irradiation at 90 to 130° C. for 1 hour. The mixture was cooled to room temperature, diluted with ethyl acetate and then filtered. The filtrate was concentrated under reduced pressure and the residue dissolved in tetrahydrofuran (5.0 mL) and 1.0M aqueous lithium hydroxide solution (0.38 mL), and the resulting mixture was stirred at room temperature for 1 hour. The mixture was acidified by the addition of 0.1M aqueous hydrochloric acid solution and then concentrated under reduced pressure. Purification of the residue by preparative reverse-phase HPLC gave title compound (0.021 g).

후처리

  1. temperatureThe mixture was cooled to room temperature
  2. filtrationfiltered
  3. concentrationThe filtrate was concentrated under reduced pressure
  4. dissolutionthe residue dissolved in tetrahydrofuran (5.0 mL)
  5. additionThe mixture was acidified by the addition of 0.1M aqueous hydrochloric acid solution
  6. concentrationconcentrated under reduced pressure
  7. customPurification of the residue by preparative reverse-phase HPLC

출처 및 근거

ORD 기록
ord-f41a8ac1b2e64533b86203121ea5f638
출처 데이터셋
uspto-grants-2013_03
특허 번호
US08394830B2

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