Methyl 3-bromopropanoate → Methyl 3-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionate

HRID 13857

反応式

HRID 13857 の反応式
Br[CH2:2][CH2:3][C:4]([O:6][CH3:7])=[O:5].[NH:8]1[CH2:13][CH2:12][CH:11]([O:14][C:15](=[O:29])[NH:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH2:10][CH2:9]1.CCN(C(C)C)C(C)C>C(#N)C>[CH3:7][O:6][C:4](=[O:5])[CH2:3][CH2:2][N:8]1[CH2:9][CH2:10][CH:11]([O:14][C:15](=[O:29])[NH:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=2[C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH2:12][CH2:13]1

参加物

5

反応条件

温度
50 °C

実験手順

Methyl 3-bromopropionate (553 μL, 5.07 mmol) was added to a stirred solution of biphenyl-2-ylcarbamic acid piperidin-4-yl ester (1.00 g, 3.38 mmol; prepared as described in Preparation 1) and DIPEA (1.76 mL, 10.1 mmol) in ACN (34 mL) at 50° C. and the reaction mixture was heated at 50° C. overnight. The solvent was then removed under reduced pressure, and the residue was dissolved in DCM (30 mL). The resulting solution was washed with saturated aqueous sodium bicarbonate solution (10 mL), dried over MgSO4, filtered and the solvent was removed under reduced pressure. The crude residue was purified by column chromatography (5-10% MeOH/DCM) to give 905 mg of the title intermediate (70% yield).

後処理

  1. customThe solvent was then removed under reduced pressure
  2. dissolutionthe residue was dissolved in DCM (30 mL)
  3. washThe resulting solution was washed with saturated aqueous sodium bicarbonate solution (10 mL)
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. customthe solvent was removed under reduced pressure
  7. customThe crude residue was purified by column chromatography (5-10% MeOH/DCM)

出典と根拠

ORDレコード
ord-d5ce28f4093644dea52f9b79850cc92e
出典データセット
uspto-grants-2010_06
特許番号
US07728144B2

関連ノート

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