The invention belongs to the technical field of medicines, and particularly relates to a dihydropyridino [3, 4-D]
pyrimidine compound as well as a preparation method and application thereof. The dihydropyrido [3, 4-D]
pyrimidine compound disclosed by the invention is an HIV-1 (
human immunodeficiency virus-1) non-
nucleoside reverse transcriptase inhibitor. The invention also discloses pharmaceutical salts, hydrates, solvates, polycrystals or co-crystals of the compounds, precursors and derivatives with the same biological functions of the compounds, a preparation method of the compounds and application of a composition containing one or more of the compounds in related medicines for treating AIDS and the like. An in-vitro
cellular level anti-HIV-1 activity experiment result shows that the
small molecule compound has relatively strong anti-HIV-1 activity, can effectively inhibit the replication of HIV-1 viruses in MT-4 cells infected by the HIV-1 viruses, and has relatively low
cytotoxicity.