Hydrochloric Acid → 2,2-Dimethyl-propionic acid 3-(4'-chloro-6-fluoro-4-methyl-biphenyl-3-yl)-8-methoxy-2-oxo-1,8-diaza-spiro[4.5]dec-3-en-4-yl ester

HRID 1022390Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1022390
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:13]([F:14])=[CH:12][C:11]([CH3:15])=[C:10]([C:16]3[C:17](=[O:29])[NH:18][C:19]4([CH2:26][CH2:25][N:24]([O:27][CH3:28])[CH2:23][CH2:22]4)[C:20]=3[OH:21])[CH:9]=2)=[CH:4][CH:3]=1.[C:30](Cl)(=[O:35])[C:31]([CH3:34])([CH3:33])[CH3:32].N1C=CC=CC=1.Cl>C(#N)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:13]([F:14])=[CH:12][C:11]([CH3:15])=[C:10]([C:16]3[C:17](=[O:29])[NH:18][C:19]4([CH2:22][CH2:23][N:24]([O:27][CH3:28])[CH2:25][CH2:26]4)[C:20]=3[O:21][C:30](=[O:35])[C:31]([CH3:34])([CH3:33])[CH3:32])[CH:9]=2)=[CH:4][CH:3]=1

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 1049PyridineHCID 62493Pivaloyl chlorideHCID 596145833-(4'-Chloro-6-fluoro-4-methyl-biphenyl-3-yl)-4-hydroxy-8-methoxy-1,8-diazaspiro[4.5]dec-3-en-2-one

Produkt 1

HCID 580312202,2-Dimethyl-propionic acid 3-(4'-chloro-6-fluoro-4-methyl-biphenyl-3-yl)-8-methoxy-2-oxo-1,8-diaza-spiro[4.5]dec-3-en-4-yl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a solution of 3-(4′-chloro-6-fluoro-4-methyl-biphenyl-3-yl)-4-hydroxy-8-methoxy-1,8-diaza-spiro[4.5]dec-3-en-2-one (170 mg) and pivaloyl chloride (98 mg) in acetonitrile (5 ml) is added pyridine (64 mg) and the reaction mixture stirred at room temperature for 8 hours. The mixture is poured on diluted HCl and extracted with ethyl acetate (3×). The combined organic layers are washed with brine, dried over sodium sulfate and concentrated. The residue is triturated with heptane, filtered and dried. Yield: 100 mg of 2,2-dimethyl-propionic acid 3-(4′-chloro-6-fluoro-4-methyl-biphenyl-3-yl)-8-methoxy-2-oxo-1,8-diaza-spiro[4.5]dec-3-en-4-yl ester as a solid, mp: 150-151° C.

Aufarbeitung

  1. extractionextracted with ethyl acetate (3×)
  2. washThe combined organic layers are washed with brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated
  5. customThe residue is triturated with heptane
  6. filtrationfiltered
  7. customdried

Quellen und Nachweise

ORD-Eintrag
ord-e81de93d7c2f4ec1bd8d810277f91fa8
Quelldatensatz
uspto-grants-2014_05
Patentnummer
US08722578B2

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