2-Pyrazinecarboxylic acid → 4-[3-(2-Pyrazinecarbonylamino)propylthio]pyridine

HRID 6163

反応式

HRID 6163 の反応式
[N:1]1[CH:6]=[CH:5][N:4]=[CH:3][C:2]=1[C:7]([OH:9])=O.ON1C(=O)CCC1=O.Cl.C(N=C=NCCCN(C)C)C.Cl.Cl.[NH2:32][CH2:33][CH2:34][CH2:35][S:36][C:37]1[CH:42]=[CH:41][N:40]=[CH:39][CH:38]=1>C(Cl)Cl>[N:1]1[CH:6]=[CH:5][N:4]=[CH:3][C:2]=1[C:7]([NH:32][CH2:33][CH2:34][CH2:35][S:36][C:37]1[CH:42]=[CH:41][N:40]=[CH:39][CH:38]=1)=[O:9]

参加物

6

実験手順

To a solution of 1.00 g (8.06 mmol) of 2-pyrazinecarboxylic acid and 1.21 g (10.5 mmol) of N-hydroxysuccinimide in 70 ml of methylene-chloride, 1.85 g (9.67 mmol) of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (WSC) was added with stirring under ice-cooling, and the mixture was stirred at room temperature for 1 hour. Further, 1.94 g (8.06 mmol) of 4-(3-aminopropylthio)pyridine dihydrochloride was added, and the mixture was stirred at room temperature for 3 hours. The reaction mixture was washed with saturated aqueous sodium bicarbonate and water, and dried. The solvent was distilled off and the residue was purified by column chromatography (eluent: ethyl acetate) to give 0.751 g of the desired compound (34.0% yield, colorless powder).

後処理

  1. temperaturecooling
  2. stirringthe mixture was stirred at room temperature for 1 hour
  3. stirringthe mixture was stirred at room temperature for 3 hours
  4. washThe reaction mixture was washed with saturated aqueous sodium bicarbonate and water
  5. customdried
  6. distillationThe solvent was distilled off
  7. customthe residue was purified by column chromatography (eluent: ethyl acetate)

出典と根拠

ORDレコード
ord-d55965f78437450f9aef72b94ae9f168
出典データセット
uspto-grants-1993_09
特許番号
US05246948

関連ノート

読み込み中…