G. V. Grygoriv, D. A. Lega, V. P. Chernykh, T. P. Osolodchenko, and L. A. Shemchuk, “Domino-reactions of 1,2-benzoxathiin-4(3H)-one 2,2-dioxide, hetarenecarbaldehydes and active methylene nitriles in the construction of new 2-amino-4H-pyrans and the study of their antimicrobial properties”, J. Org. Pharm. Chem., vol. 16, no. 1(61), pp. 3–10, Mar. 2018.