1. Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
2. Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 China
3. University of Chinese Academy of Sciences; Beijing 100039 China
4. West China School of Pharmacy Sichuan University; Chengdu 610041 China
5. Chengdu University; Chengdu 610106 China