Cesium carbonate → racemic (2'S,3S,4'R)-6-chloro-2'-(3-chlorophenyl)-4'-(5-fluoro-2-methyl-phenyl)-2,3-dihydro-1'-[(tert-butoxycarbonyl)methyl]-2,6'-dioxo spiro[indole-3,3'-piperidine] 1-methoxyethyl trimethylsilane

HRID 1728080노트

반응식

HRID 1728080 반응식
[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:32])[C:10]3([CH:15]([C:16]4[CH:21]=[C:20]([F:22])[CH:19]=[CH:18][C:17]=4[CH3:23])[CH2:14][C:13](=[O:24])[NH:12][CH:11]3[C:25]3[CH:30]=[CH:29][CH:28]=[C:27]([Cl:31])[CH:26]=3)[C:5]2=[CH:4][CH:3]=1.[CH3:33][O:34][CH:35]([Si:37]([CH3:40])([CH3:39])[CH3:38])[CH3:36].[C:41]([O:45][C:46](=[O:49])[CH2:47]Br)([CH3:44])([CH3:43])[CH3:42].C(=O)([O-])[O-].[Cs+].[Cs+].[NH4+].[Cl-]>CN(C)C=O>[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:32])[C:10]3([CH:15]([C:16]4[CH:21]=[C:20]([F:22])[CH:19]=[CH:18][C:17]=4[CH3:23])[CH2:14][C:13](=[O:24])[N:12]([CH2:47][C:46]([O:45][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:49])[CH:11]3[C:25]3[CH:30]=[CH:29][CH:28]=[C:27]([Cl:31])[CH:26]=3)[C:5]2=[CH:4][CH:3]=1.[CH3:33][O:34][CH:35]([Si:37]([CH3:40])([CH3:39])[CH3:38])[CH3:36]

참가 물질

6

반응물 4

HCID 10796Cesium carbonateHCID 25517Ammonium ChlorideHCID 79177tert-Butyl bromoacetateHCID 775809006-Chloro-2'-(3-chlorophenyl)-4'-(5-fluoro-2-methyl-phenyl)-2,3-dihydro-2,6'-dioxo spiro[indole-3,3'-piperidine] 1-methoxyethyl trimethylsilane

생성물 1

HCID 77581377racemic (2'S,3S,4'R)-6-chloro-2'-(3-chlorophenyl)-4'-(5-fluoro-2-methyl-phenyl)-2,3-dihydro-1'-[(tert-butoxycarbonyl)methyl]-2,6'-dioxo spiro[indole-3,3'-piperidine] 1-methoxyethyl trimethylsilane수율 28.4%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of racemic (2′S,3S,4′R)-6-chloro-2′-(3-chlorophenyl)-4′-(5-fluoro-2-methyl-phenyl)-2,3-dihydro-2,6′-dioxospiro[indole-3,3′-piperidine]-1-methoxyethyl trimethylsilane (2.5 g, 4.18 mmol) prepared in example 146b in N,N-dimethyl-formamide (20 mL) at room temperature was added bromo-acetic acid tert-butyl ester (2.0 g, 10.4 mmol) and cesium carbonate (7.5 g, 23.0 mmol). The reaction mixture was stirred under nitrogen for 4 h, then was poured into saturated aqueous NH4Cl solution. The mixture was extracted with ethyl acetate. The organic layers were combined, dried over Na2SO4 and concentrated. The residue was purified by chromatography (EtOAc:Hexanes=1:4) to give racemic (2′S,3S,4′R)-6-chloro-2′-(3-chlorophenyl)-4′-(5-fluoro-2-methyl-phenyl)-2,3-dihydro-1′-[(tert-butoxycarbonyl)methyl]-2,6′-dioxospiro[indole-3,3′-piperidine]-1-methoxyethyl trimethylsilane as a yellow solid (Yield 0.85 g).

후처리

  1. extractionThe mixture was extracted with ethyl acetate
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated
  4. customThe residue was purified by chromatography (EtOAc:Hexanes=1:4)

출처 및 근거

ORD 기록
ord-c1179874c84249689b7a2d235be0aa96
출처 데이터셋
uspto-grants-2009_02
특허 번호
US07495007B2

반응 노트

불러오는 중…