2-Methyltetrahydrofuran → Dasabuvir

HRID 58410

Reaktionsgleichung

Reaktionsgleichung von HRID 58410
C(P(C(C)(C)C)C1C(OC)=CC=C(OC)C=1C1C(C(C)C)=CC(C(C)C)=CC=1C(C)C)(C)(C)C.[O-]P([O-])([O-])=O.[K+].[K+].[K+].CC1CCCO1.FC(F)(F)C(F)(S(O[C:60]1[CH:69]=[CH:68][C:67]2[C:62](=[CH:63][CH:64]=[C:65]([C:70]3[CH:75]=[C:74]([N:76]4[CH:81]=[CH:80][C:79](=[O:82])[NH:78][C:77]4=[O:83])[CH:73]=[C:72]([C:84]([CH3:87])([CH3:86])[CH3:85])[C:71]=3[O:88][CH3:89])[CH:66]=2)[CH:61]=1)(=O)=O)C(F)(F)F.[CH3:93][S:94]([NH2:97])(=[O:96])=[O:95]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C(OCC)(=O)C>[C:84]([C:72]1[C:71]([O:88][CH3:89])=[C:70]([C:65]2[CH:66]=[C:67]3[C:62](=[CH:63][CH:64]=2)[CH:61]=[C:60]([NH:97][S:94]([CH3:93])(=[O:96])=[O:95])[CH:69]=[CH:68]3)[CH:75]=[C:74]([N:76]2[CH:81]=[CH:80][C:79](=[O:82])[NH:78][C:77]2=[O:83])[CH:73]=1)([CH3:86])([CH3:87])[CH3:85]

Komponenten

8

Edukt 5

HCID 73012-MethyltetrahydrofuranHCID 62657Potassium Phosphate, TribasicHCID 72879MethanesulfonamideHCID 44233348Di-tert-butyl(2',4',6'-triisopropyl-3,6-dimethoxy-(1,1'-biphenyl)-2-yl)phosphineHCID 866938686-(3-tert-Butyl-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-methoxyphenyl)naphthalen-2-yl 1,1,1,2,3,3,3-heptafluoropropane-2-sulfonate2×

Produkt 1

HCID 56640146Dasabuvir

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

Tris(dibenzylideneacetone)dipalladium(0) (0.0071 g, 7.71 μmol), di-tert-butyl(2′,4′,6′-triisopropyl-3,6-dimethoxybiphenyl-2-yl)phosphine (0.0089 g, 19.0 μmol) and milled potassium phosphate tribasic (0.360 g, 1.696 mmol) were charged to a 40-mL reaction vial inside an inert atmosphere glove box. 2-Methyltetrahydrofuran (4 mL) was added, and the closed vial and its contents were heated to 80° C. with magnetic stirring for 30 minutes. The reaction mixture was cooled down to room temperature. 6-(3-tert-Butyl-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-methoxyphenyl)naphthalen-2-yl 1,1,1,2,3,3,3-heptafluoropropane-2-sulfonate (1.0 g, 1.542 mmol, Example 3-4, compound (5c)), methanesulfonamide (0.176 g, 1.850 mmol) and ethyl acetate (8 mL) were added to the 40-mL reaction vial. The temperature of the closed vial and its contents was raised to 90° C. and stirred for 20 hours. HPLC analysis of the reaction mixture showed that the product was formed in 95 area % at 210 nm.

Aufarbeitung

  1. additionwere charged to a 40-mL reaction vial inside an inert atmosphere glove box
  2. temperatureThe reaction mixture was cooled down to room temperature
  3. temperatureThe temperature of the closed vial and its contents was raised to 90° C.
  4. stirringstirred for 20 hours
  5. customwas formed in 95 area % at 210 nm

Quellen und Nachweise

ORD-Eintrag
ord-37110502d7ba4f61b00dde3d85b882c1
Quelldatensatz
uspto-grants-2016_09
Patentnummer
US09434698B2

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