Water → HCID 11230046、化合物

HRID 851934ノート

反応式

HRID 851934 の反応式
[CH3:1][O:2][C:3]1[CH:21]=[CH:20][C:6]([CH2:7][N:8]2[C:14](=[O:15])[CH2:13][CH2:12][CH2:11][C:10]3[CH:16]=[CH:17][CH:18]=[CH:19][C:9]2=3)=[CH:5][CH:4]=1.[Li+].[CH3:23][CH:24]([N-:26]C(C)C)C.Br[CH2:31][C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33].[OH2:39]>C1COCC1>[OH:39][NH:26][C:24](=[O:33])[CH2:23][CH:13]1[C:14](=[O:15])[NH:8][C:9]2[CH:19]=[CH:18][CH:17]=[CH:16][C:10]=2[CH2:11][CH2:12]1.[C:35]([O:34][C:32](=[O:33])[CH2:31][CH:13]1[C:14](=[O:15])[N:8]([CH2:7][C:6]2[CH:5]=[CH:4][C:3]([O:2][CH3:1])=[CH:21][CH:20]=2)[C:9]2[CH:19]=[CH:18][CH:17]=[CH:16][C:10]=2[CH2:11][CH2:12]1)([CH3:38])([CH3:37])[CH3:36]

参加物

7

反応物 4

HCID 962WaterHCID 79177tert-Butyl bromoacetateHCID 14749841,3,4,5-Tetrahydro-1-[(4-methoxyphenyl)methyl]-2H-1-benzazepin-2-oneHCID 2724682Lithium diisopropylamide

生成物 2

HCID 11230046HCID 11230046、化合物HCID 69004791HCID 69004791、化合物

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

A solution of 1-(4-methoxy-benzyl)-1,3,4,5-tetrahydro-benzo[b]azepin-2-one (0.71 mmol) in 2 mL of anhydrous THF is cooled down to −78° C. and freshly prepared LDA (0.85 mmol) is slowly added to the mixture. After the addition, the mixture is allowed to warm up to 0° C., then stirred for 30 minutes and cooled down again to −78° C. Tert-butyl bromoacetate (1.0 mmol) is added. The mixture is stirred at −78° C. for 1 hour and then allowed to warm up to 0° C. To quench the reaction, 1 mL of a mixture of EtOH and water (1:1) is added to the mixture at 0° C. and the mixture is allowed to warm up to room temperature. Water (20 mL) is added followed by extraction (EtOAc, 3×15 mL). The combined organic layers are washed with brine and dried over MgSO4. Solvent is removed under vacuum and the residue is purified by flash column chromatography (silica gel, 0˜25% EtOAc/hexane) to provide the desired product [1-(4-methoxy-benzyl)-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl]-acetic acid tert-butyl ester as white solid. Yield: 30%. 1H NMR (400 MHz, CDCl3): δ 7.24 (m, 2H), 7.13 (m, 4H), 6.75 (d, 2H), 5.10 (d, 1H), 4.80 (d, 1H), 2.86(m, 2H), 2.38˜2.50(m, 2H), 2.17(q, 1H), 1.80˜2.05(m, 2H), 1.40(s, 9H). MS: (ES+): 396 [M+1].

後処理

  1. additionAfter the addition
  2. temperaturecooled down again to −78° C
  3. stirringThe mixture is stirred at −78° C. for 1 hour
  4. temperatureto warm up to 0° C
  5. customTo quench
  6. customthe reaction, 1 mL of a mixture of EtOH and water (1:1)
  7. additionis added to the mixture at 0° C.
  8. temperatureto warm up to room temperature
  9. extractionfollowed by extraction (EtOAc, 3×15 mL)
  10. washThe combined organic layers are washed with brine
  11. dry with materialdried over MgSO4
  12. customSolvent is removed under vacuum
  13. customthe residue is purified by flash column chromatography (silica gel, 0˜25% EtOAc/hexane)

出典と根拠

ORDレコード
ord-635d035f3d2d4eda98cdda68d77e9bd1
出典データセット
uspto-grants-2007_08
特許番号
US07253164B2

反応ノート

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