反应详情

In a similar manner to Example 59 reaction of 7-(ethoxycarbonylmethylamino)4-oxo-2-(2-propoxyphenyl)-3,4-dihydropyrimido[4,5-d]pyrimidine (0.54 g) and 1 Normal sodium hydroxide (5 ml) yielded the title compound 0.41 g, m.p. 252-253.5° C. (dec.) (recrystallized from ethanol:water).