Abstract
The human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) has always been a global health threat and leading cause of deaths. However, due to the emergence of drug-resistant HIV, an inevitable consequence of increasing use of antiretroviral drugs posed a major threat to antiretroviral therapy success. The discovery of anti-HIV-1 agents will be used for the effective treatment of HIV/AIDS. In continuation of our program aimed to discover anti-HIV-1 agents, twelve matrine derivatives, such as 14-formyl-15-aryloxy/methoxymatrines (3a-j) and 14-aryloxymethylidenylmatrines (3k,l), were semi-prepared from matrine, and evaluated against HIV-1 IIIB replication in acutely infected C8166 cells in vitro. Among them, compound 3j showed the most potent anti-HIV-1 activity with EC50 and therapeutic index (TI) values of 1.79 µg/mL, and 98.2, respectively. It has been demonstrated that the positions of methyl on the phenyl ring and 14- formylmatrine-15-oxy on the naphthyl ring were very important for the activity. It will lay the foundation for further structural modification and application of matrines as HIV-1 inhibitors.
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