Yan Hao, Yan Rulong, Yang Sizhuo, Gao Xiai, Wang Yuling, Huang Guosheng, Liang Yongmin
State Key Laboratory of Organic Chemistry, Lanzhou University, Lanzhou, 730000 P. R. China.
Chem Asian J. 2012 Sep;7(9):2028-31. doi: 10.1002/asia.201200319. Epub 2012 Jun 12.