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Zhi-Cheng Huang;Ying Zou;Min Xiang;Chen-Yi Li;Xia Li;Fang Tian;Li-Xin Wang;. (2021). 3-Amino Oxindole Schiff Base as Synthon for Enantioselective Preparation of Spiro[oxindol-3,2′-pyrrol] from a Michael/Cyclization Reaction Catalyzed by a Bifunctional Cinchona . Organic Letters, (), –. doi:10.1021/acs.orglett.1c00370 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research