[Tang, Chu; Yang, Guangzhong] South Cent Univ Nationalities, Coll Pharm, Lab Nat Prod Chem, Wuhan 430074, Peoples R China.
[Liang, Yongju; Fu, Liwu] Sun Yat Sen Univ, Ctr Canc, State Key Lab Oncol South China, Guangzhou 510060, Guangdong, Peoples R China.
[Bai, Shun; Chen, Yu] South Cent Univ Nationalities, Coll Chem & Mat Sci, Wuhan 430074, Peoples R China.
[He, Hongwu] Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.
[Yang, Guangzhong] South Cent Univ Nationalities, Coll Pharm, Lab Nat Prod Chem, 128 Minyuan Rd, Wuhan 430074, Peoples R China.