Chemical and Biological potentials of semicarbazide and thiosemicarbazide derivatives and their metals complexes

Organic compounds have plays vital role in biological chemical activities and also use for increase people's quality of life. Semicarbazide and thiosemicarbazide are sulfur and nitrogen-containing organic compounds with diverse biological activities. They are Schiff’s bases formed by the condensation product of aldehydes or ketones with different amines. These derivatives are urea and thiourea derivatives depend on the attached aldehydes or ketones moiety. Antibacterial, antifungal, anticonvulsant, antitubercular, antimalarial, anticancer, analgesic, antipyretic, anti-inflammatory, antioxidant, antiviral, and other biological activities are all possible with semicarbazide and thiosemicarbazide derivatives. The addition of hydrazides to various isocyanates and isothiocyanates is one of the most convenient methods for the synthesis of semicarbazide and thiosemicarbazide derivatives, but they also used as a starting material for the synthesis of various Schiff’s bases, metal chelating complexes, and anticorrosion agents. Various biological activities of semicarbazide and thiosemicarbazide derivatives, and their uses in the drug development phases, are the subject of this study.