[1] Hong Kong Univ Sci & Technol, Dept Chem, Clear Water Bay, Hong Kong, Peoples R China
[2] Chinese Univ Hong Kong, Sch Chinese Med, Shatin, Peoples R China
[3] Chinese Acad Sci, Shanghai Inst Mat Med, Shanghai 200031, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Bioorgan & Nat Prod Chem, Shanghai 200032, Peoples R China