1. Department of Medicinal Chemistry, School of Pharmacy Southwest Medical University Luzhou 646000 People's Republic of China
2. Central Nervous System Drug Key Laboratory of Sichuan Province Luzhou 646000 People's Republic of China
3. Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal University) Guilin 541004 People's Republic of China
4. Department of Chemistry, School of Basic Medical Science Southwest Medical University Luzhou 646000 People's Republic of China
5. Department of Pharmacy, Affiliated Hospital Southwest Medical University Luzhou 646000 People's Republic of China