[1]Li,Xun;Wang,Donghua;Wu,Jifeng;Xu,Wenfang[Heterocycles,2005,vol.65,#11,p.2741-2751]
[2]Li,Xun;Wang,Donghua;Wu,Jifeng;Xu,Wenfang[SyntheticCommunications,2005,vol.35,#19,p.2553-2560]