2,4-Dichloro-6,7-dihydrothieno[3,2-d]pyrimidine

2,4-Dichloro-6,7-dihydrothieno[3,2-d]pyrimidine is used as an intermediate in the synthesis of a variety of pharmaceutical compounds. It features prominently in research focused on anti-cancer and anti-viral medications due to its complex thieno[3,2-d]pyrimidine structure.