Catalytic Asymmetric Conjugate Addition of α-Substituted Nitro Acetates to Nitro Olefins: Enantioselective Synthesis of Highly Substituted γ-Lactams. - Li, Ying‐Zi; Li, Fei; Tian, Ping; Lin, Guo‐Qiang (European Journal of Organic Chemistry, 2013)