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3-Nitro-2H-chromenes in [3+2] cycloaddition reaction with azomethine ylides derived from N-unsubstituted α-amino acids and isatins: regio- and stereoselective synthesis of spirochromeno[3,4-c]pyrrolidines

Chemistry of Heterocyclic Compounds, 2019
I. Kutyashev, A. Barkov, V. Y. Korotaev, V. Sosnovskikh   +3 more
semanticscholar   +1 more source