Access to Enantiopure Spiropyridines Enabled by Enantio-Relay Double [2 + 2 + 2] Cycloaddition and Kinetic Resolution [2 + 2 + 2] Cycloaddition of Alkynes and Nitriles - Li-Gang Bai; Yu-Qing Zheng; Han-Nan Chen; Jinhui Cai; Wen-Bo Liu (Journal of the American Chemical Society, 2025)