p-Aminophenylacetic acid ethyl ester → ethyl [4-({(2E)-3-[5-(4-fluorophenyl)-1-methyl-1H-pyrazol-4-yl]prop-2-enoyl}amino)phenyl]acetate

HRID 30714ノート

反応式

HRID 30714 の反応式
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:4][CH:3]=1.[F:14][C:15]1[CH:20]=[CH:19][C:18]([C:21]2[N:25]([CH3:26])[N:24]=[CH:23][C:22]=2/[CH:27]=[CH:28]/[C:29](O)=[O:30])=[CH:17][CH:16]=1.O.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>O.CN(C)C=O>[F:14][C:15]1[CH:16]=[CH:17][C:18]([C:21]2[N:25]([CH3:26])[N:24]=[CH:23][C:22]=2/[CH:27]=[CH:28]/[C:29]([NH:1][C:2]2[CH:3]=[CH:4][C:5]([CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])=[CH:6][CH:7]=2)=[O:30])=[CH:19][CH:20]=1

参加物

7

反応物 4

HCID 225219p-Aminophenylacetic acid ethyl esterHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 69208981(2E)-3-[5-(4-fluorophenyl)-1-methyl-1H-pyrazol-4-yl]acrylic acid

生成物 1

HCID 86602527ethyl [4-({(2E)-3-[5-(4-fluorophenyl)-1-methyl-1H-pyrazol-4-yl]prop-2-enoyl}amino)phenyl]acetate収率 90%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

実験手順

A mixture of ethyl (4-aminophenyl)acetate (0.88 g), (2E)-3-[5-(4-fluorophenyl)-1-methyl-1H-pyrazol-4-yl]acrylic acid (1.0 g), 1-hydroxy-1H-1,2,3-benzotriazole hydrate (0.81 g), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.02 g) and N,N-dimethylformamide (30 mL) was stirred at room temperature for 15 hrs. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed successively with 1N hydrochloric acid, saturated aqueous sodium hydrogen carbonate and saturated brine, dried over anhydrous magnesium sulfate, and concentrated to give ethyl [4-({(2E)-3-[5-(4-fluorophenyl)-1-methyl-1H-pyrazol-4-yl]prop-2-enoyl}amino)phenyl]acetate as colorless crystals (1.49 g, yield 89%). Recrystallization thereof from ethyl acetate-hexane gave colorless prism crystals. melting point: 177-178° C.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed successively with 1N hydrochloric acid, saturated aqueous sodium hydrogen carbonate and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-c6ba2ada6b164e628057cc7043727968
出典データセット
uspto-grants-2008_09
特許番号
US07423159B2

反応ノート

読み込み中…