Tetrahydrofuran → N-[2-chloro-6-(hydrazinocarbonyl)phenyl]-1-(3-chloro-2-pyridinyl)-3-trifluoromethyl-1H-pyrazole-5-carboxamide

HRID 2427008

反応式

HRID 2427008 の反応式
[Cl:1][C:2]1[C:11]2[N:10]=[C:9]([C:12]3[N:16]([C:17]4[C:22]([Cl:23])=[CH:21][CH:20]=[CH:19][N:18]=4)[N:15]=[C:14]([C:24]([F:27])([F:26])[F:25])[CH:13]=3)[O:8][C:7](=[O:28])[C:6]=2[CH:5]=[CH:4][CH:3]=1.O.[NH2:30][NH2:31].O1CCCC1>O>[Cl:1][C:2]1[CH:3]=[CH:4][CH:5]=[C:6]([C:7]([NH:30][NH2:31])=[O:28])[C:11]=1[NH:10][C:9]([C:12]1[N:16]([C:17]2[C:22]([Cl:23])=[CH:21][CH:20]=[CH:19][N:18]=2)[N:15]=[C:14]([C:24]([F:27])([F:26])[F:25])[CH:13]=1)=[O:8]

参加物

5

実験手順

A mixture of 0.27 g of 8-chloro-2-[1-(3-chloro-2-pyridinyl)-3-trifluoromethyl-1H-pyrazol-5-yl]-4H-3,1-benzoxazine-4-one, 0.025 ml of hydrazine monohydrate and 10 ml of tetrahydrofuran was stirred at room temperature for 3 hours. Water was poured into the reaction mixture, and the mixture was extracted with ethyl acetate three times. The organic layers were combined, washed with an aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The resulting residue was washed with a mixed solvent of chloroform and methyl t-butyl ether to obtain 0.21 g of N-[2-chloro-6-(hydrazinocarbonyl)phenyl]-1-(3-chloro-2-pyridinyl)-3-trifluoromethyl-1H-pyrazole-5-carboxamide of the formula:

後処理

  1. extractionthe mixture was extracted with ethyl acetate three times
  2. washwashed with an aqueous saturated sodium chloride solution
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. washThe resulting residue was washed with a mixed solvent of chloroform and methyl t-butyl ether

出典と根拠

ORDレコード
ord-5f9bcc0519594ba69d1014f6a9a96173
出典データセット
uspto-grants-2011_06
特許番号
US07968573B2

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