1. College of Basic Medicine & Laboratory of New Antitumor Drug Molecular Design and Synthesis of Jining Medical University & Jining Key Laboratory of Pharmacology, Jining Medical University, Jining 272067, People's Republic of China
2. College of Life Sciences, Xinyang Normal University, Tea Plant Biology Key Laboratory of Henan Province, Xinyang 464000, China
3. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China