[1]Qian,Changtao;Wang,Longcheng[TetrahedronLetters,2000,vol.41,#13,p.2203-2206]
[1]Qian,Changtao;Wang,Longcheng[TetrahedronLetters,2000,vol.41,#13,p.2203-2206]
[1]Qian,Changtao;Wang,Longcheng[TetrahedronLetters,2000,vol.41,#13,p.2203-2206]
[1]TetrahedronLetters,2000,vol.41,p.2203-2206