1. Key Laboratory of Drug Targeting and Drug Delivery System of Ministry of Education, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University , Chengdu, Sichuan 610041, China
2. National Clinical Research Center for Geriatrics and Department of Periodical Press, West China Hospital, Sichuan University , Chengdu, Sichuan 610041, China
3. Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, Chemistry Research Laboratory, Mansfield Road, University of Oxford , Oxford OX1 3TA, UK