3-Trifluoromethylcinnamic acid → 1H-Purine-2,6-dione, 3,7-dihydro-1,3-diethyl-8-(2-(3-(trifluoromethyl)phenyl)ethenyl)-, (E)-

Beteiligte Stoffe

Reaktionsschritte

Substantially the same procedure as in Example 7 was repeated using 2.50 g (12.6 mmol) of 5,6-diamino-1,3-diethyluracil and 3.0 g (13.9 mmol) of 3-trifluoromethylcinnamic acid. Then, the resultant crude crystals were recrystallized from acetonitrile/water to give 2.07 g (yield of Compound 156 as white needles.

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