(2E)-3-(2-Bromo-4,5-dimethoxyphenyl)acrylic acid → 1H-Purine-2,6-dione, 3,7-dihydro-8-(2-(2-bromo-4,5-dimethoxyphenyl)ethenyl)-1,3-diethyl-, (E)-

Participants

Reaction Steps

Substantially the same procedure as in Reference Example 70 was repeated using 3.00 g (15.1 mmol) of 5,6-diamino-1,3-diethyluracil and 4.78 g (17.2 mmol) of 2-bromo-4,5-dimethoxycinnamic acid. Then, the resultant crude crystals were recrystallized from dioxane to give 3.34 g (yield 49%) of Compound 117 as pale yellow needles.

Provenance & Evidence