Author Contributions
Duo-zhi Chen, Shirui Fan, and Xueyin Lu contributed equally to this work. D. C., C. J., and B. Y. designed and performed the chemical synthesis; J. C. and Y. W. purified all the compounds; S. F., X. L., D. Z., and Y. Y. evaluated the antiviral activities and other bioactivities of all the compounds under the guidance of A. H. and L. L.; D. C. and S. F. wrote the manuscript with advice from all of the authors; and X. H. and D. C. guided all aspects of this work.