ChemInform Abstract: Efficient Asymmetric Michael Reaction of 2‐Oxindole‐3‐carboxylate Esters with Maleimides Catalyzed by Cinchonidine. Issue 43 (21st October 2014) - Zhou, Jing; Jia, Li‐Na; Peng, Lin; Wang, Qi‐Lin; Tian, Fang; Xu, Xiao‐Ying; Wang, Li‐Xin