Synthesis, Anti-Potato Virus Y Activities, and Interaction Mechanisms of Novel Quinoxaline Derivatives Bearing Dithioacetal Moiety

Quinoxaline and its derivatives are important functional molecules with a broad range of applications. Disclosed here is a design and synthesis of a series of novel quinoxaline derivatives containing dithioacetal moieties as well as their antiviral activities against potato virus Y (PVY). The compound D30 was developed on the basis of the three-dimensional quantitative structure-activity relationship. The anti-PVY activity test showed that the half maximal effective concentration of the anti-PVY protective activity of compound D30 is 197 mu g/mL, which was better than the control agents ningnanmycin (423 mu g/mL) and xiangcaoliusuobingmi (281 mu g/mL). Significantly, compound D30 can increase defense enzyme activity and chlorophyll content, promote photosynthesis by accelerating carbon fixation in tobacco, and further improve plant disease resistance. All of these results suggest that compound D30 could be employed as a lead compound for novel PVY inhibitor discovery.

Automated summary

This study presents the design and synthesis of novel quinoxaline derivatives containing dithioacetal moieties, and evaluates their antiviral activities against potato virus Y. Compound D30 shows promising antiviral activity and has the potential to enhance plant disease resistance.