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Lithium hydroxide, monohydrate → 1-methyl-5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid

HRID 1844434
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HRID 1844434 반응식
[CH3:1][N:2]1[C:6]([C:7](=[O:24])[NH:8][C:9]2[CH:10]=[CH:11][C:12]3[N:13]([N:15]=[C:16]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[N:17]=3)[CH:14]=2)=[C:5]([C:25]([O:27]CC)=[O:26])[CH:4]=[N:3]1.O.[OH-].[Li+]>CO.O>[CH3:1][N:2]1[C:6]([C:7](=[O:24])[NH:8][C:9]2[CH:10]=[CH:11][C:12]3[N:13]([N:15]=[C:16]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[N:17]=3)[CH:14]=2)=[C:5]([C:25]([OH:27])=[O:26])[CH:4]=[N:3]1
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참가 물질

5

반응물 2

HCID 168937Lithium hydroxide, monohydrateHCID 89464100ethyl 1-methyl-5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylate

생성물 1

HCID 715375761-methyl-5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid수율 98%

시약·촉매·용매 2

HCID 887Methanol용매HCID 962Water
용매

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온도
25 °C

실험 절차

A mixture of ethyl 1-methyl-5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylate (480 mg, 1.23 mmol) and lithium hydroxide hydrate (155 mg, 3.69 mmol) in methanol (10 ml) and water (3.0 ml) was stirred for 18 hours at 25° C. The solvent was evaporated, the residue was diluted with water and the solution was acidified with hydrochloric acid to pH=0, the precipitated solid was collected, washed with water and dried in vacuo affording 1-methyl-5-(2-phenyl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid (435 mg, 98%) as light brown solid. Mp.: 259° C. MS: m/z=361.2 (M−H+).

후처리

  1. customThe solvent was evaporated
  2. additionthe residue was diluted with water
  3. customthe precipitated solid was collected
  4. washwashed with water
  5. customdried in vacuo

출처 및 근거

ORD 기록
ord-6060fd74392346a091c6752bce74b930
출처 데이터셋
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08946427B2

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