Reactant for preparation of tryptophan dioxygenase inhibitors pyridyl-ethenyl-indoles as potential anticancer immunomodulators 1 Reactant for preparation of antifungal agents 2 Reactant for preparation of Sodium-Dependent Glucose Co-transporter 2 (SGLT2) Inhibitors for the Management of Hyperglycemia in Diabetes 3 Reactant for preparation of Potent Selective Serotonin Reuptake Inhibitors 4 Reactant for preparation of Inhibitors of HIV-1 attachment 5 Reactant for preparation of monoamine reuptake inhibitors 6 Reactant for preparation of histone deacetylase (HDAC) inhibitors 7 Reactant for preparation of inhibitors of proliferation of human breast cancer cells.