Potassium Carbonate → methyl 2-((4-oxo-6-(4-(trifluoromethoxy)phenyl)quinazolin-3(4H)-yl)methyl)oxazole-4-carboxylate

HRID 517096Notes

Reaction equation

HRID 517096 reaction equation
[F:1][C:2]([F:22])([F:21])[O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[C:12]3[C:17](=[CH:18][CH:19]=2)[N:16]=[CH:15][NH:14][C:13]3=[O:20])=[CH:6][CH:5]=1.Cl[CH2:24][C:25]1[O:26][CH:27]=[C:28]([C:30]([O:32][CH3:33])=[O:31])[N:29]=1.C(=O)([O-])[O-].[K+].[K+]>CC(N(C)C)=O.O.ClCCl>[O:20]=[C:13]1[C:12]2[C:17](=[CH:18][CH:19]=[C:10]([C:7]3[CH:8]=[CH:9][C:4]([O:3][C:2]([F:1])([F:21])[F:22])=[CH:5][CH:6]=3)[CH:11]=2)[N:16]=[CH:15][N:14]1[CH2:24][C:25]1[O:26][CH:27]=[C:28]([C:30]([O:32][CH3:33])=[O:31])[N:29]=1

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 2763199Methyl 2-(chloromethyl)oxazole-4-carboxylateHCID 1363523196-(4-(trifluoromethoxy)phenyl)quinazolin-4(3H)-one

Product 1

HCID 70974638methyl 2-((4-oxo-6-(4-(trifluoromethoxy)phenyl)quinazolin-3(4H)-yl)methyl)oxazole-4-carboxylate

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6344DichloromethaneSolventHCID 31374DimethylacetamideSolvent

Procedure

A solution of 500 mg 6-(4-(trifluoromethoxy)phenyl)quinazolin-4(3H)-one, 340 mg of methyl 2-(chloromethyl)oxazole-4-carboxylate, and 220 mg potassium carbonate in 5 mL of DMA was heated at 80° C. for 16 h. The reaction was diluted with water and dichloromethane, aqueous layer washed with dichloromethane, combined organic layers dried over sodium sulphate and concentrated. The residue was recrystallized from acetonitrile to produce methyl 2-((4-oxo-6-(4-(trifluoromethoxy)phenyl)quinazolin-3(4H)-yl)methyl)oxazole-4-carboxylate Compound 177-A as a white solid (420 mg). MS m/z (ESI)=446.0 (base peak, M+H+); 891.1 (2M+H+); 913.1 (2M+Na+).

Workup

  1. washwashed with dichloromethane
  2. dry with materialdried over sodium sulphate
  3. concentrationconcentrated
  4. customThe residue was recrystallized from acetonitrile

Sources & evidence

ORD record
ord-ded59b6d949a40fd800940d8daf7a577
Source dataset
uspto-grants-2015_08
Patent number
US09115096B2

Reaction notes

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