4-Nitrophenyl chloroformate → 3-[5-(2-Fluoro-phenyl)-pyridin-2-yloxy]-azetidine-1-carboxylic acid 4-nitro-phenyl ester

HRID 1469383ノート

反応式

HRID 1469383 の反応式
Cl[C:2]([O:4][C:5]1[CH:10]=[CH:9][C:8]([N+:11]([O-:13])=[O:12])=[CH:7][CH:6]=1)=[O:3].C([N:27]1[CH2:30][CH:29]([O:31][C:32]2[CH:37]=[CH:36][C:35]([C:38]3[CH:43]=[CH:42][CH:41]=[CH:40][C:39]=3[F:44])=[CH:34][N:33]=2)[CH2:28]1)(C1C=CC=CC=1)C1C=CC=CC=1>ClCCl>[N+:11]([C:8]1[CH:9]=[CH:10][C:5]([O:4][C:2]([N:27]2[CH2:30][CH:29]([O:31][C:32]3[CH:37]=[CH:36][C:35]([C:38]4[CH:43]=[CH:42][CH:41]=[CH:40][C:39]=4[F:44])=[CH:34][N:33]=3)[CH2:28]2)=[O:3])=[CH:6][CH:7]=1)([O-:13])=[O:12]

参加物

4

実験手順

4-nitrophenyl chloroformate (734 mg g, 3.64 mmol) was added to a stirred solution of 2-(1-Benzhydryl-azetidin-3-yloxy)-5-(2-fluoro-phenyl)-pyridine (996 mg, 2.43 mol) in dichloromethane (25 mL) at ambient temperature. The resulting solution was stirred at ambient temperature for 18 hr, diluted with dichloromethane (150 mL) and washed sequentially with sat. aqueous sodium hydrogen carbonate solution (3×150 mL) then sat. sodium chloride solution (150 mL). The organic phase was dried over magnesium sulphate and filtered. Filtrate solvents were removed in vacuo and the residue was purified by trituration with Methyl tertiary butyl ether (25 mL) to give after filtration a yellow solid (786 mg, 79%).

後処理

  1. washwashed sequentially with sat. aqueous sodium hydrogen carbonate solution (3×150 mL)
  2. dry with materialThe organic phase was dried over magnesium sulphate
  3. filtrationfiltered
  4. customFiltrate solvents were removed in vacuo
  5. customthe residue was purified by trituration with Methyl tertiary butyl ether (25 mL)
  6. customto give
  7. filtrationafter filtration a yellow solid (786 mg, 79%)

出典と根拠

ORDレコード
ord-21f5dfba2df44c79a87d20734ce6800d
出典データセット
uspto-grants-2015_04
特許番号
US09006269B2

反応ノート

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