3-(2,4-Dimethoxyphenyl)prop-2-enoic acid → 1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(2,4-dimethoxyphenyl)ethenyl)-, (E)-

Beteiligte Stoffe

Reaktionsschritte

Substantially the same procedure as in Reference Example 70 was repeated using 2.50 g (12.6 mmol) of 5,6-diamino-1,3-diethyluracil and 2.89 g (13.9 mmol) of 2,4-dimethoxycinnamic acid. Then, the resultant crude crystals were recrystallized from dimethylformamide/ethanol to give 0.92 g (yield 20%) of Compound 77 as yellow crystals.

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