Synthesis and antiviral activity of lycorine derivatives
作者:Ya-Jun Yang、Jiang-Ning Liu、Xian-Dao Pan
DOI:10.1080/10286020.2020.1844674
日期:2020.12.1
Abstract There are no effective antiviral drugs to treat hand, foot, and mouth disease. In this study, a series of lycorine derivatives were synthesized and evaluated against enterovirus 71 and coxsackievirus A16 in vitro. Derivatives 7c-m with the phenoxyacyl group at the C-1 position showed higher efficacy and lower toxicity than lycorine. In addition, derivative 7e enhanced the survival rate to
Lycorine Derivatives Against Trichomonas vaginalis
作者:Raquel B. Giordani、Celso O. R. Junior、Jean P. de Andrade、Jaume Bastida、Jose A. S. Zuanazzi、Tiana Tasca、Mauro V. de Almeida
DOI:10.1111/j.1747-0285.2012.01333.x
日期:2012.7
Six lycorine derivatives were prepared, characterized, and evaluated for their in vitro anti‐Trichomonas vaginalis activity. Compounds bearing an acetyl (2), lauroyl (3), benzoyl (4 and 5), and p‐nitrobenzoyl (6 and 7) groups were synthesized. The best activity was achieved with lycorine esterified at C‐2 position with lauroyl group. Preliminary structure–activity relationship points that unprotected OH group at C‐1 and C‐2 is not necessary to the antiparasitic activity, and none of the derivative was less active than lycorine. The lycorine structural requisites required to kill this amitochondriate cell seem to be different in comparison with the derivatives most active against other parasites and tumor cell lines, both mitochondriated cells. This result is an important contribution with our ongoing studies regarding the mechanism of action of the Amaryllidaceae alkaloids on T. vaginalis cell death opening a new perspective to optimize this innovative pharmacological potential.