3',4'-Dimethoxycinnamic acid → 1H-Purine-2,6-dione, 3,7-dihydro-8-(2-(3,4-dimethoxyphenyl)ethenyl)-1,3-di-2-propenyl-, (E)-

Beteiligte Stoffe

Reaktionsschritte

Substantially the same procedure as in Reference Example 1 was repeated using 2.9 g (13.1 mmol) of 1,3-diallyl-5,6-diaminouracil and 2.99 g (14.4 mmol) of 3,4-dimethoxycinnamic acid. Then, the resultant crude crystals were recrystallized from dioxane/water to give 2.80 g (yield 54%) of Compound 190 as pale yellow flocculent precipitates.

Herkunft & Nachweise