Acetic Acid → (+/-) 9-[(Pyridin-2-ylmethyl)-amino]-2-pyrimidin-4-yl-5,6,8,9-tetrahydro-7-oxa-1,4-a-diaza-benzocyclohepten-4-one

HRID 1886968ノート

反応式

HRID 1886968 の反応式
[NH2:1][CH:2]1[C:8]2=[N:9][C:10]([C:14]3[CH:19]=[CH:18][N:17]=[CH:16][N:15]=3)=[CH:11][C:12](=[O:13])[N:7]2[CH2:6][CH2:5][O:4][CH2:3]1.[N:20]1[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=1[CH:26]=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>ClCCl>[N:20]1[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=1[CH2:26][NH:1][CH:2]1[C:8]2=[N:9][C:10]([C:14]3[CH:19]=[CH:18][N:17]=[CH:16][N:15]=3)=[CH:11][C:12](=[O:13])[N:7]2[CH2:6][CH2:5][O:4][CH2:3]1

参加物

6

反応物 4

HCID 176Acetic AcidHCID 142732-PyridinecarboxaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 68626960HCID 68626960、化合物

生成物 1

HCID 44160105(+/-) 9-[(Pyridin-2-ylmethyl)-amino]-2-pyrimidin-4-yl-5,6,8,9-tetrahydro-7-oxa-1,4-a-diaza-benzocyclohepten-4-one収率 35%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a solution of 0.090 g (0.35 mmol) of (+/−)-9-amino-2-pyrimidin-4-yl-5,6,8,9-tetrahydro-7-oxa-1,4-a-diaza-benzocyclohepten-4-one in 3.5 ml of dichloromethane was added 0.030 mL (0.36 mmol) of 2-pyridine carboxaldehyde, 0.184 g (0.87 mmol) of sodium triacetoxyborohydride and few drops of glacial acetic acid. The reaction mixture was stirred at room temperature for 15 hours. The residue was dissolved in dichloromethane and a saturated aqueous solution of sodium carbonate, extracted with dichloromethane and washed with saturated aqueous solution of sodium chloride, dried over sodium sulfate and evaporated. A recrystallization in isopropanol gives 0.042 g (35%) of pure product.

後処理

  1. extractiona saturated aqueous solution of sodium carbonate, extracted with dichloromethane
  2. washwashed with saturated aqueous solution of sodium chloride
  3. dry with materialdried over sodium sulfate
  4. customevaporated
  5. customA recrystallization in isopropanol

出典と根拠

ORDレコード
ord-aa9e7657c8c645faa5a92a608a66cfc9
出典データセット
uspto-grants-2013_08
特許番号
US08501728B2

反応ノート

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