Lithium hydroxide, monohydrate → 5-Chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethylamino}-nicotinic Acid

HRID 11688

반응식

HRID 11688 반응식
C[O:2][C:3](=[O:31])[C:4]1[CH:9]=[C:8]([Cl:10])[CH:7]=[N:6][C:5]=1[NH:11][CH2:12][C:13]([N:15]1[CH2:20][C@H:19]([CH3:21])[N:18]([CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[CH2:17][C@H:16]1[CH3:30])=[O:14].O.[OH-].[Li+]>O1CCCC1.CO.O>[Cl:10][C:8]1[CH:7]=[N:6][C:5]([NH:11][CH2:12][C:13]([N:15]2[CH2:20][C@H:19]([CH3:21])[N:18]([CH2:22][C:23]3[CH:24]=[CH:25][C:26]([F:29])=[CH:27][CH:28]=3)[CH2:17][C@H:16]2[CH3:30])=[O:14])=[C:4]([CH:9]=1)[C:3]([OH:31])=[O:2]

참가 물질

6

실험 절차

To a solution of 5-chloro-2-{2-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethylamino}-nicotinic acid methyl ester (0.16 g, 0.36 mmol) in tetrahydrofuran (3 mL), methanol (3 mL) and water (1 mL) was added lithium hydroxide monohydrate (0.075 g, 1.78 mmol). The reaction was stirred at ambient temperature overnight, concentrated in vacuo, diluted with dichloromethane and passed through a glass frit. The filtrate was treated with diethyl ether saturated with hydrogen chloride gas, and the white precipitate thus formed was collected by filtration to give the title compound as its hydrochloride salt (0.13 g).

후처리

  1. concentrationconcentrated in vacuo
  2. additiondiluted with dichloromethane
  3. additionThe filtrate was treated with diethyl ether saturated with hydrogen chloride gas
  4. customthe white precipitate thus formed
  5. filtrationwas collected by filtration

출처 및 근거

ORD 기록
ord-223a3321ac374d05890573b86de32568
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07098212B2

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