Synthesis of Polyoxygenated Tropolones and their Antiviral Activity against Hepatitis B Virus and Herpes Simplex Virus-1.

Daniel V Schiavone, Diana M Kapkayeva, Qilan Li, Molly E Woodson, Andreu Gazquez Casals, Lynda A Morrison, John E Tavis, Ryan P Murelli

Chemistry (Weinheim an der Bergstrasse, Germany) 2022 Feb 21

filter terms:

Polyoxygenated tropolones possess a broad range of biological activity, and as a result are promising lead structures or fragments for drug development. However, structure-function studies and subsequent optimization have been challenging, in part due to the limited number of readily available tropolones and the obstacles to their synthesis. Oxidopyrylium [5+2] cycloaddition can effectively generate a diverse array of seven-membered ring carbocycles, and as a result can provide a highly general strategy for tropolone synthesis. Here, we describe the use of 3-hydroxy-4-pyrone-based oxidopyrylium cycloaddition chemistry in the synthesis of functionalized 3,7-dimethoxytropolones, 3,7-dihydroxytropolones, and isomeric 3-hydroxy-7-methoxytropolones through complementary benzyl alcohol-incorporating procedures. The antiviral activity of these molecules against herpes simplex virus-1 and hepatitis B virus is also described, highlighting the value of this approach and providing new structure-function insights relevant to their antiviral activity. © 2022 Wiley-VCH GmbH.

Citation

Daniel V Schiavone, Diana M Kapkayeva, Qilan Li, Molly E Woodson, Andreu Gazquez Casals, Lynda A Morrison, John E Tavis, Ryan P Murelli. Synthesis of Polyoxygenated Tropolones and their Antiviral Activity against Hepatitis B Virus and Herpes Simplex Virus-1. Chemistry (Weinheim an der Bergstrasse, Germany). 2022 Feb 21;28(10):e202104112