Synthesis of 2,5-Disubstituted Derivatives of Pyrano[2,3-d][1,3]thiazines via the Interaction of 2-Substituted 4-Hydroxy-6H-1,3-thiazine-6-ones withAldehydes. -(SHUTOV*, R. V.; SOPOVA, M. V.; KRYLOV, A. V.; KALUZHSKIKH, A. N.; IVIN, B. A.; J. Heterocycl. Chem. 52 (2015) 6, 1618-1624, http://dx.