Ceftibuten dihydrate, one of the third-generation cephalosporin antibiotic is effectively used in curing
several infectious diseases. The complexation of drug with metal may enhance the antibacterial activity.
In this work, a new complex of ceftibuten dihydrate with Cu(II) was synthesized, characterized and
antibacterial activity is reported. The in vitro test showed that the antibacterial activity of complex of
ceftibuten was greatly enhanced against Staphylococcus aureus and Salmonella typhi.
Ceftibuten dihydrate is a semisynthetic, orally administered, third generation cephalosporin antibiotic which is effective against most of the pathogens causing infections in the respiratory tract. Complexation of ceftibuten dehydrate (Ligand, L) was performed with hydrated Ni(II) salt (Metal, M) in the ratio of 2:1 (L:M) in aqueous medium at 90 oC. The metal complex was then characterized by spectral techniques and thermal analyses. The FT-IR spectral data of metal complex suggested the monodentate bonding of metal ion to carboxylate group. Spectral evidence also supported the formation of five-membered ring via coordination of metal ion to β-lactam nitrogen and carboxylate group of parent drug. Thermal behavior of ligand and complex were studied. Thus, thermoanalytical (DSC and TGA) results also supported the formation of new metal complex, indicating the successful interaction of metal ion to ligand.
Dhaka Univ. J. Pharm. Sci. 20(2): 219-225, 2021 (December)
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