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

Beteiligte Stoffe

Reaktionsschritte

Substantially the same procedure as in Reference Example 70 was repeated using 2.0 g (10.1 mmol) of 5,6-diamino-1,3-diethyluracil and 2.52 g (12.1 mmol) of 2,3-dimethoxycinnamic acid. Then, the resultant crude crystals were recrystallized from dimethylsulfoxide/water to give 1.72 g (yield 46%) of Compound 75 as a white powder.

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