6-(4-Aminophenyl)-1-(2,6-difluorobenzyl)-3-(6-methoxypyridazin-3-yl)-5-methylthieno[2,3-d]pyrimidine-2,4(1H,3H)-dione

Mainly used for the synthesis of targeted antitumor, anti-inflammatory and kinase inhibitor drugs as a key active intermediate for constructing polyheterocyclic drug molecules.