Disclosed is a dihydropyrimido fused ring derivative as a HBV inhibitor, and in particular relates to a compound shown as formula (I) or a pharmaceutically acceptable salt thereof.
Design, synthesis, and evaluation of novel heteroaryldihydropyrimidine derivatives as non‐nucleoside hepatitis B virus inhibitors by exploring the solvent‐exposed region
AbstractIn continuation of our efforts toward the discovery of potent non‐nucleoside hepatitis B virus (HBV) inhibitors with novel structures, we have explored the solvent‐exposed protein region of heteroaryldihydropyrimidine derivatives. Herein, the morpholine ring of GLS4 was replaced with substituted sulfonamides and triazoles to generate novel non‐nucleoside HBV inhibitors with desirable potency. In in vitro biological evaluation, several derivatives showed good anti‐HBV DNA replication activity compared to lamivudine. In particular, compound II‐1 displayed the most potent activity against HBV DNA replication (IC50 = 0.35 ± 0.04 μM). The preliminary structure–activity relationships of the new compounds were summarized, which may help in discovering more potent anti‐HBV agents via rational drug design.