1. Guangdong Provincial Key Laboratory of Research and Development of Natural Drugs, Guangdong Medical
University, Dongguan, 523808, China
2. Key Laboratory of Research and Development of New Medical Materials, School of Pharmacy, Guangdong Medical University, Dongguan, 523808, China
3. Department of Chemistry, Faculty of
Science, University of Lucknow, Lucknow, 226007, India