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Trifluoroacetic acid → 6-Chloro-4'-(3-chlorophenyl)-2'-(5-fluoro-2-methylphenyl)-2,3-dihydro-1'-methyl-2,6'-dioxo spiro[indole-3,3'-piperidine]-1-ethanol

HRID 1728009
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1728009
[Cl:1][C:2]1[CH:7]=[C:6]2[NH:8][C:9](=[O:33])[C:10]3([CH:15]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([Cl:22])[CH:17]=4)[CH2:14][C:13](=[O:23])[N:12]([CH3:24])[CH:11]3[C:25]3[CH:30]=[C:29]([F:31])[CH:28]=[CH:27][C:26]=3[CH3:32])[C:5]2=[CH:4][CH:3]=1.C[O:35][CH:36]([Si](C)(C)C)[CH3:37].FC(F)(F)C(O)=O>ClCCl>[Cl:1][C:2]1[CH:7]=[C:6]2[N:8]([CH2:37][CH2:36][OH:35])[C:9](=[O:33])[C:10]3([CH:15]([C:16]4[CH:21]=[CH:20][CH:19]=[C:18]([Cl:22])[CH:17]=4)[CH2:14][C:13](=[O:23])[N:12]([CH3:24])[CH:11]3[C:25]3[CH:30]=[C:29]([F:31])[CH:28]=[CH:27][C:26]=3[CH3:32])[C:5]2=[CH:4][CH:3]=1
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Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 775808376-Chloro-4'-(3-chlorophenyl)-2'-(5-fluoro-2-methylphenyl)-2,3-dihydro-1'-methyl-2,6'-dioxo spiro[indole-3,3'-piperidine] 1-methoxyethyl trimethylsilane

Produkt 1

HCID 775810676-Chloro-4'-(3-chlorophenyl)-2'-(5-fluoro-2-methylphenyl)-2,3-dihydro-1'-methyl-2,6'-dioxo spiro[indole-3,3'-piperidine]-1-ethanolAusbeute 67,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

To a solution of racemic (2′R,3R,4′S)-6-chloro-4′-(3-chlorophenyl)-2′-(5-fluoro-2-methylphenyl)-2,3-dihydro-1′-methyl-2,6′-dioxospiro[indole-3,3′-piperidine]-1-methoxyethyl trimethylsilane (0.16 g, 0.26 mmol) prepared in example 56a in dichloromethane (10 mL) was added trifluoroacetic acid (20 mL). The reaction mixture was stirred at room temperature for 3 h. The reaction mixture was concentrated. The residue was neutralized with saturated NaHCO3 aqueous solution, then extracted with ethyl acetate. The organic layer was separated, dried over MgSO4 and concentrated. The residue was purified by chromatography (EtOAc:CH2Cl2=1:1) to give racemic (2′R,3R,4′S)-6-chloro-4′-(3-chlorophenyl)-2′-(5-fluoro-2-methylphenyl)-2,3-dihydro-1′-methyl-2,6′-dioxospiro[indole-3,3′-piperidine]-1-ethanol (Yield 90 mg, 67.7%).

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated
  2. extractionextracted with ethyl acetate
  3. customThe organic layer was separated
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated
  6. customThe residue was purified by chromatography (EtOAc:CH2Cl2=1:1)

Quellen und Nachweise

ORD-Eintrag
ord-c6e305d0bdfa44e0bf090cf0fd5d07e0
Quelldatensatz
uspto-grants-2009_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07495007B2

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