1. School of
Pharmaceutical Sciences, Hebei Medical University, 361 Zhongshan East Road, Shijiazhuang 050017, People's Republic
of China
2. Syngenta Jealott’s Hill International Research Centre,
Bracknell, Berkshire RG42 6EY, United Kingdom
3. Department of Radiation Oncology, The Fourth
Affiliated Hospital, Hebei Medical University, Shijiazhuang 050011, People's Republic of China
4. Department of Chemistry, Queen’s University, Kingston, Ontario, Canada,
K7L 3N6