TY JOUR TI Synthesis of 2,4,7,9-tetraphenyl-4,4a,9,9a-tetrahydrothiopyrano[2,3-g]thiochromene-5,10(5aH,10aH)-dione and analysis of its biological activity KW 2H-thiopyranes KW molecular docking KW Diels–Alder heterocyclic reaction KW GABAB(1) receptor KW affinity KW toxicity KW PASS-Online JO From Chemistry Towards Technology Step-By-Step AU Nemirov, D.M. AU Ovchinnikov, K.L. PY 2026 IS 7 PB Yaroslavl State Technical University