1. Department
of Natural Products Chemistry, Key Lab of Chemical Biology (MOE),
School of Pharmaceutical Sciences, Shandong University, No. 44 West
Wenhua Road, Jinan 250012, People’s Republic of China
2. School
of Chemistry and Chemical Engineering, Shandong University, No. 27 Shanda
Nanlu, Jinan 250100, People’s Republic of China
3. College
of Life Sciences, Shandong Normal University, No. 88 East Wenhua Road, Jinan 250014, People’s Republic of China