Basavaraja, D.; Athira, C. S.; Siddalingeshwar V. D.; Ashitha, K. T. Multicomponent synthesis of spiro-dihydropyridine oxindoles via cascade spirocyclization of Knoevenagel/aza-Michael adducts. J. Org. Chem. 2022, 87, 13556–13563. https://doi.org/10.1021/

Basavaraja, D.; Athira, C. S.; Siddalingeshwar V. D.; Ashitha, K. T. Multicomponent synthesis of spiro-dihydropyridine oxindoles via cascade spirocyclization of Knoevenagel/aza-Michael adducts. J. Org. Chem. 2022, 87, 13556–13563. https://doi.org/10.1021/acs.joc.2c01063.