Lithium hydroxide, monohydrate → 3-[(2S)-1-(Difluoromethoxy)propan-2-yl]oxy-5-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-benzoic acid

HRID 2241944노트

반응식

HRID 2241944 반응식
O.[OH-].[Li+].[F:4][CH:5]([F:33])[O:6][CH2:7][C@@H:8]([O:10][C:11]1[CH:12]=[C:13]([CH:18]=[C:19]([O:21][C:22]2[CH:27]=[N:26][C:25]([C:28](=[O:32])[N:29]([CH3:31])[CH3:30])=[CH:24][N:23]=2)[CH:20]=1)[C:14]([O:16]C)=[O:15])[CH3:9]>O.C1COCC1>[F:33][CH:5]([F:4])[O:6][CH2:7][C@@H:8]([O:10][C:11]1[CH:12]=[C:13]([CH:18]=[C:19]([O:21][C:22]2[CH:27]=[N:26][C:25]([C:28](=[O:32])[N:29]([CH3:30])[CH3:31])=[CH:24][N:23]=2)[CH:20]=1)[C:14]([OH:16])=[O:15])[CH3:9]

참가 물질

5

반응물 2

HCID 168937Lithium hydroxide, monohydrateHCID 59205092Methyl 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-benzoate

생성물 1

HCID 592050903-[(2S)-1-(Difluoromethoxy)propan-2-yl]oxy-5-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-benzoic acid수율 75.3%

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

실험 절차

Lithium hydroxide monohydrate (45 mg, 1.06 mol) in water (5 mL) was added to a solution of methyl 3-[(2S)-1-(difluoromethoxy)propan-2-yl]oxy-5-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-benzoate (0.3 g, 0.71 mmol) in THF (10 mL) and stirred at RT for 20 hours. The THF was removed in vacuo and the aqueous layer was washed with ethyl acetate (50 mL) to remove any impurities. The aqueous layer was acidified and extracted into ethyl acetate (2×50 mL) then the combined organics washed with brine (50 mL), dried (MgSO4) and the solvent removed in vacuo to give the desired compound (0.22 g).

후처리

  1. customThe THF was removed in vacuo
  2. washthe aqueous layer was washed with ethyl acetate (50 mL)
  3. customto remove any impurities
  4. extractionextracted into ethyl acetate (2×50 mL)
  5. washthe combined organics washed with brine (50 mL)
  6. dry with materialdried (MgSO4)
  7. customthe solvent removed in vacuo

출처 및 근거

ORD 기록
ord-9250000edabd4d02b74f2f55e4bcbb2a
출처 데이터셋
uspto-grants-2010_03
특허 번호
US07671060B2

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