Cesium carbonate → 3-{4-[3-(4-Chloro-2-phenoxy-phenoxy)-4-fluoro-phenoxy]-2-methyl-phenyl}-propionic acid

HRID 1822254노트

반응식

HRID 1822254 반응식
C[O:2][C:3](=[O:22])[CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][C:13]2[CH:18]=[CH:17][C:16]([F:19])=[C:15](Br)[CH:14]=2)=[CH:8][C:7]=1[CH3:21].[Cl:23][C:24]1[CH:29]=[CH:28][C:27]([OH:30])=[C:26]([O:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH:25]=1.CC(C)(C(=O)CC(=O)C(C)(C)C)C.C(=O)([O-])[O-].[Cs+].[Cs+].[OH-].[Na+]>CN1C(=O)CCC1.CO.[Cu]Cl>[Cl:23][C:24]1[CH:29]=[CH:28][C:27]([O:30][C:15]2[CH:14]=[C:13]([CH:18]=[CH:17][C:16]=2[F:19])[O:12][C:9]2[CH:10]=[CH:11][C:6]([CH2:5][CH2:4][C:3]([OH:2])=[O:22])=[C:7]([CH3:21])[CH:8]=2)=[C:26]([O:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH:25]=1

참가 물질

9

반응물 5

HCID 10796Cesium carbonateHCID 14798Sodium HydroxideHCID 707002,2,6,6-Tetramethyl-3,5-heptanedioneHCID 127742954-Chloro-2-phenoxyphenolHCID 578941273-[4-(3-Bromo-4-fluoro-phenoxy)-2-methyl-phenyl]-propionic acid methyl ester

생성물 1

HCID 578941333-{4-[3-(4-Chloro-2-phenoxy-phenoxy)-4-fluoro-phenoxy]-2-methyl-phenyl}-propionic acid수율 11.3%

시약·촉매·용매 3

HCID 62652Cuprous chloride촉매HCID 887Methanol용매HCID 13387N-methyl-2-pyrrolidone용매

실험 절차

A solution of 3-[4-(3-bromo-4-fluoro-phenoxy)-2-methyl-phenyl]-propionic acid methyl ester (0.1 g, 0.27 mmol), 4-chloro-2-phenoxy-phenol (60 mg, 0.27 mmol), copper(I) chloride (13 mg, 0.13 mmol), 2,2,6,6-tetramethyl-3,5-heptanedione (0.01 mL, 0.07 mmol), and cesium carbonate (105 mg, 0.32 mmol) in NMP (3 mL) is heated to 120° C. The reaction is stirred overnight and cooled to rt. The reaction is then quenched with 1N aqueous HCl and extracted with ethyl ether. The organic layer is washed with brine, dried over sodium sulfate, and filtered. The solvent is removed to afford the crude ester intermediate. The intermediate is treated with 5N NaOH (0.4 mL, 2.2 mmol) in MeOH (5 mL) and heated to reflux. The reaction is stirred at reflux for 2 hours and then cooled. The reaction is quenched with 1N aqueous HCl to obtain pH=4. The aqueous layer is extracted with ethyl ether. The organic layer is washed with brine, dried over sodium sulfate, and filtered. The solvent is removed to afford the crude product. The crude is purified by prep HPLC to afford 15 mg (11%) of desired product.

후처리

  1. customThe reaction is then quenched with 1N aqueous HCl
  2. extractionextracted with ethyl ether
  3. washThe organic layer is washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. customThe solvent is removed
  7. customto afford the crude ester intermediate
  8. temperatureheated to reflux
  9. stirringThe reaction is stirred
  10. temperatureat reflux for 2 hours
  11. temperaturecooled
  12. customThe reaction is quenched with 1N aqueous HCl
  13. customto obtain pH=4
  14. extractionThe aqueous layer is extracted with ethyl ether
  15. washThe organic layer is washed with brine
  16. dry with materialdried over sodium sulfate
  17. filtrationfiltered
  18. customThe solvent is removed
  19. customto afford the crude product
  20. customThe crude is purified by prep HPLC

출처 및 근거

ORD 기록
ord-e583f1faf5e54d329a8b8dd92f1e44a1
출처 데이터셋
uspto-grants-2009_10
특허 번호
US07608639B2

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