Hydrochloric Acid → Ethyl 2-{4-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenylamino]-6-methoxy-5-nitropyrimidin-2-yloxy}acetate

HRID 1513084Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1513084
[Cl:1][C:2]1[CH:20]=[C:19]([O:21][CH3:22])[C:18]([O:23][CH2:24][C:25]2[C:30]([O:31][CH3:32])=[CH:29][CH:28]=[C:27]([F:33])[C:26]=2[F:34])=[CH:17][C:3]=1[NH:4][C:5]1[C:10]([N+:11]([O-:13])=[O:12])=[C:9]([O:14][CH3:15])[N:8]=[C:7](Cl)[N:6]=1.[C:35]([O:39][CH2:40][CH3:41])(=[O:38])[CH2:36][OH:37].[H-].[Na+].Cl>CN1CCCC1=O>[Cl:1][C:2]1[CH:20]=[C:19]([O:21][CH3:22])[C:18]([O:23][CH2:24][C:25]2[C:30]([O:31][CH3:32])=[CH:29][CH:28]=[C:27]([F:33])[C:26]=2[F:34])=[CH:17][C:3]=1[NH:4][C:5]1[C:10]([N+:11]([O-:13])=[O:12])=[C:9]([O:14][CH3:15])[N:8]=[C:7]([O:37][CH2:36][C:35]([O:39][CH2:40][CH3:41])=[O:38])[N:6]=1

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 12184Ethyl GlycolateHCID 24758Sodium hydrideHCID 866412872-chloro-N-(2-chloro-6-methoxy-5-nitropyrimidin-4-yl)-5-(2,3-difluoro-6-methoxy-benzyloxy)-4-methoxyaniline

Produkt 1

HCID 68514427Ethyl 2-{4-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenylamino]-6-methoxy-5-nitropyrimidin-2-yloxy}acetateAusbeute 15 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a solution of 2-chloro-N-(2-chloro-6-methoxy-5-nitropyrimidin-4-yl)-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyaniline (0.13 g) and ethyl glycolate (38 mg) in 1-methyl-2-pyrrolidone (2 mL) was added sodium hydride (55%, 21 mg) under ice-cooling, and the mixture was stirred at 80° C. overnight. The reaction mixture was poured into 1 mol/L hydrochloric acid, and the resulting mixture was extracted with ethyl acetate. The extract was washed with water and brine, and dried over anhydrous sodium sulfate. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=7/3−2/3) to give ethyl 2-{4-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenylamino]-6-methoxy-5-nitropyrimidin-2-yloxy}acetate (22 mg). The title compound was prepared in a similar manner to that described in Example 310 using this material instead of diethyl 2-{4-[2-chloro-5-(2,3-difluoro-6-methoxybenzyloxy)-4-methoxyphenylamino]-6-methoxy-5-nitropyrimidin-2-yl}malonate.

Aufarbeitung

  1. temperaturecooling
  2. extractionthe resulting mixture was extracted with ethyl acetate
  3. washThe extract was washed with water and brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe solvent was removed under reduced pressure
  6. customthe residue was purified by column chromatography on silica gel (eluent: n-hexane/ethyl acetate=7/3−2/3)

Quellen und Nachweise

ORD-Eintrag
ord-8665d0fad5584f8894e8b37ab345d37d
Quelldatensatz
uspto-grants-2012_07
Patentnummer
US08217069B2

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