Synthesis of Novel Spiro Indolizidine Derivatives via 1,3-Dipolar Cycloaddition of Azomethine Ylide
Li Xiaofang, Yi Rongqiong, Liu Bin, Li Zhikui, Yu Xianyong, Yi Pinggui
Chin. J. Org. Chem. . 2012, (12): 2309 -2314 .  DOI: 10.6023/cjoc201207027