1. Department
of Natural Products Chemistry, Key Laboratory of Chemical Biology
of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China
2. Department
of Biochemistry and Molecular Biology, School of Medicine, Shandong University, No. 44 West Wenhua Road, Jinan 250012, People’s Republic of China