反应详情

Following the procedure of Example 1, 1.29 g. of 2-(2-dimethylaminomethyl-4-thiazolylmethylthio)ethylamine and 1.54 g. of 2-nitroamino-5-(6-methoxy-3-pyridylmethyl)-4-pyrimidone were dissolved in 50 ml. of ethanol and the resulting solution heated at reflux temperature for about 1 week. The solvent was removed by evaporation and the residue purified by gradient elution chromatography (silica-ethanol/ethyl acetate/ammonium hydroxide). Fractions containing the desired pyrimidone were combined and the solvents removed from the combined fractions. The resulting residue was crystallized from ethyl acetate to yield 2-[2-(2-dimethylaminomethyl-4-thiazolylmethylthio)ethyl]amino-5-(6-methoxy-3-pyridyl)methyl-4-pyrimidone melting at 137°-8° C.

1. temperatureat reflux temperature for about 1 week
2. customThe solvent was removed by evaporation
3. customthe residue purified by gradient elution chromatography (silica-ethanol/ethyl acetate/ammonium hydroxide)
4. additionFractions containing the desired pyrimidone
5. customthe solvents removed from the combined fractions
6. customThe resulting residue was crystallized from ethyl acetate