Asymmetric Synthesis and Structural Elucidation of C2-Symmetrical Optically Active Macrocycles Consisting of Two Biaryl and Two α-Amino Acid Moieties - Zhao, Hongwu; Su, Shi; Cui, Jin; Song, Xiuqing; Qin, Xiao; Li, Hailong; Yan, Hong; Zhong, Rugang; Hu, Liming (Synlett, 2010)