Acetic Anhydride → (S)-ethyl 2-(2-(acetoxymethyl)-5-(4-chlorophenyl)-7-methylquinolin-6-yl)-2-tert-butoxyacetate

HRID 931767Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 931767
[C:1]([O:4]C(=O)C)(=[O:3])[CH3:2].[C:8]([O:12][C@@H:13]([C:19]1[C:20]([C:32]2[CH:37]=[CH:36][C:35]([Cl:38])=[CH:34][CH:33]=2)=[C:21]2[C:26](=[CH:27][C:28]=1[CH3:29])[N+:25]([O-])=[C:24]([CH3:31])[CH:23]=[CH:22]2)[C:14]([O:16][CH2:17][CH3:18])=[O:15])([CH3:11])([CH3:10])[CH3:9].C(O[C@@H](C1C(C2C=CC(Cl)=CC=2)=C2C(=CC=1C)N=C(C)C=C2)C(OCC)=O)(C)(C)C>>[C:1]([O:4][CH2:31][C:24]1[CH:23]=[CH:22][C:21]2[C:26](=[CH:27][C:28]([CH3:29])=[C:19]([C@H:13]([O:12][C:8]([CH3:11])([CH3:10])[CH3:9])[C:14]([O:16][CH2:17][CH3:18])=[O:15])[C:20]=2[C:32]2[CH:37]=[CH:36][C:35]([Cl:38])=[CH:34][CH:33]=2)[N:25]=1)(=[O:3])[CH3:2]

Komponenten

4

Edukt 3

HCID 7918Acetic AnhydrideHCID 66631334(S)-6-(1-tert-butoxy-2-ethoxy-2-oxoethyl)-5-(4-chlorophenyl)-2,7-dimethylquinoline 1-oxideHCID 68587086(S)-ethyl 2-tert-butoxy-2-(5-(4-chlorophenyl)-2,7-dimethylquinolin-6-yl)acetate

Produkt 1

HCID 86691980(S)-ethyl 2-(2-(acetoxymethyl)-5-(4-chlorophenyl)-7-methylquinolin-6-yl)-2-tert-butoxyacetate

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

Acetic anhydride was added to a flask containing (S)-6-(1-tert-butoxy-2-ethoxy-2-oxoethyl)-5-(4-chlorophenyl)-2,7-dimethylquinoline 1-oxide (compound of Example 14) (42 mg, 0.095 mmol). The mixture was stirred at 80° C. for 1 hour. Acetic anhydride was removed under vacuum. The residue was dissolved in ethyl acetate (50 mL). The organic layer was washed with NaHCO3 solution and water, dried and concentrated in vacuo. The obtained residue was used for next step reaction without purification. LCMS-ESI+ (m/z): 484.2, 486.2 (M+H)+.

Aufarbeitung

  1. customAcetic anhydride was removed under vacuum
  2. dissolutionThe residue was dissolved in ethyl acetate (50 mL)
  3. washThe organic layer was washed with NaHCO3 solution and water
  4. customdried
  5. concentrationconcentrated in vacuo
  6. customThe obtained residue was used for next step reaction without purification

Quellen und Nachweise

ORD-Eintrag
ord-a9014c14170b44458a76b925afbb6f2b
Quelldatensatz
uspto-grants-2016_03
Patentnummer
US09296758B2

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