1. R. A. Hill and J. D. Connolly, Nat. Prod. Rep., 29, 1028 (2015).
2. J. Sarek, M. Kvasnica, M. Vlk, M. Urban, P. Dzubak, and M. Hajduch, in: Research on Melanoma – A Glimpse into Current Directions and Future Trends, M. Murph (ed.), IntechOpen, 2011, Chap. 7, p. 125.
3. R. H. Cichewicz and S. A. Kouzi, Med. Res. Rev., 24, 90 (2004).
4. J. A. R. Salvador, V. M. Moreira, B. M. F. Goncalves, A. S. Leal, and Y. Jing, Nat. Prod. Rep., 29, 1463 (2012).
5. H. Chen, Y. Gao, A. Wang, X. Zhou, Y. Zheng, and J. Zhou, Eur. J. Med. Chem., 92, 648 (2015).