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

HRID 1513084Notes

Reaction equation

HRID 1513084 reaction equation
[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

Participants

6

Reactant 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

Product 1

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

Reagents, catalysts & solvents 1

HCID 13387N-methyl-2-pyrrolidoneSolvent

Conditions

Temperature
80 °C

Procedure

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.

Workup

  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)

Sources & evidence

ORD record
ord-8665d0fad5584f8894e8b37ab345d37d
Source dataset
uspto-grants-2012_07
Patent number
US08217069B2

Reaction notes

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