Hydrochloric Acid → [1-methyl-3-[2-(5-methyl-2-phenyl-4-oxazolylmethoxy)-4-pyridylmethoxy]-1H-pyrazol-4-yl]acetic acid

HRID 1295302ノート

反応式

HRID 1295302 の反応式
[CH3:1][N:2]1[CH:6]=[C:5]([CH2:7][C:8]([O:10]C)=[O:9])[C:4]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][N:17]=[C:16]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=4)[O:25][C:26]=3[CH3:27])[CH:15]=2)=[N:3]1.[OH-].[Na+].O1CCCC1.Cl>C(O)C>[CH3:1][N:2]1[CH:6]=[C:5]([CH2:7][C:8]([OH:10])=[O:9])[C:4]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][N:17]=[C:16]([O:20][CH2:21][C:22]3[N:23]=[C:24]([C:28]4[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=4)[O:25][C:26]=3[CH3:27])[CH:15]=2)=[N:3]1

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 86591675methyl [1-methyl-3-[2-(5-methyl-2-phenyl-4-oxazolylmethoxy)-4-pyridylmethoxy]-1H-pyrazol-4-yl]acetate

生成物 1

HCID 69430536[1-methyl-3-[2-(5-methyl-2-phenyl-4-oxazolylmethoxy)-4-pyridylmethoxy]-1H-pyrazol-4-yl]acetic acid収率 71%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

A mixture of methyl [1-methyl-3-[2-(5-methyl-2-phenyl-4-oxazolylmethoxy)-4-pyridylmethoxy]-1H-pyrazol-4-yl]acetate (686 mg), 1N aqueous sodium hydroxide solution (3 ml), tetrahydrofuran (6 ml) and ethanol (6 ml) was stirred at room temperature for 2 hrs. 1N Hydrochloric acid (3 ml) was added to the reaction mixture and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The obtained colorless crystals were collected by filtration to give [1-methyl-3-[2-(5-methyl-2-phenyl-4-oxazolylmethoxy)-4-pyridylmethoxy]-1H-pyrazol-4-yl]acetic acid (471 mg, yield 71%), which was then recrystallized from acetone-hexane. melting point: 126–127° C.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. filtrationThe obtained colorless crystals were collected by filtration

出典と根拠

ORDレコード
ord-2a9e5eac5d12482a872dfa0cfb71b094
出典データセット
uspto-grants-2007_07
特許番号
US07241785B2

反応ノート

読み込み中…