1. Engineering Research Center of Pharmaceutical Process Chemistry of the Ministry of Education, School of Pharmacy, East China University of Science and Technology, 130 Mei-Long Road, Shanghai 200237, P. R. China
2. Zhejiang Arthur Pharmaceutical Co. Ltd., 3556 Linggongtang Road, Jiake Life Science Park Building 3, Daqiao Town, Nanhu District, Jiaxing, Zhejiang 314000, P. R. China