Efficient Asymmetric Synthesis of (2R,3R)-3-{(1R)-1-[tert-Butyl(dimethyl)-siloxy]ethyl}-4-oxoazetidin-2-yl Acetate - Huang, Jian-Ping; Zhao, Lei; Gu, Shuang-Xi; Wang, Zhong-Hua; Zhang, Hao; Chen, Fen-Er; Dai, Hui-Fang (Synthesis, 2011)