[OH:1][C:2]1[N:7]=[C:6]([CH3:8])[CH:5]=[C:4]([CH3:9])[N:3]=1.Br[CH2:11][C:12]([O:14][CH2:15][CH3:16])=[O:13].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[CH3:9][C:4]1[CH:5]=[C:6]([CH3:8])[N:7]=[C:2]([O:1][CH2:11][C:12]([O:14][CH2:15][CH3:16])=[O:13])[N:3]=12-Hydroxy-4,6-dimethyl pyrimidine (10g, 0.08 mol) was dissolved in 150ml of dimethylformamide. Ethyl bromoacetate (13.5g, 0.08 mol) was added and also, subsequently, 11.lg of potassium carbonate. The reaction mixture was refluxed overnight. A precipitate had formed which was filtered off and the solvent was then evaporated off from the filtrate to form a crude oily product. Following purification by flash chromatography, 4.5g of the title product were obtained in the form of a red oil.
Wird geladen…
