S-methyldithiocarbazate and its Schiff bases: evaluation of bondings and biological properties.

Abstract

Eight selective nitrogen-sulfur donor ligands have been synthesized from the condensation of S-methyldithiocarbazate (SMDTC) with aldehydes and ketones with a view to evaluating their antimicrobial and cytotoxic activities, and also to correlate the biological properties with the structure of the ligands. The compounds were all characterized by elemental analyses and other physicochemical techniques. SMDTC and the Schiff bases were screened for antimicrobial and cytotoxic activities. SMDTC showed very large inhibition zones (24-44 mm) against bacteria and fungi with a minimum inhibitory concentration (MIC) of 390-25,000 and 1562-6250 microg ml(-1), against different bacteria and fungi, respectively. Streptomycin and nystatin were used as the internal standards against bacteria and fungi, respectively. SMDTC along with its Schiff bases with pyridine-2-carboxaldehyde, acetylacetone and 2,3-butanedione were strongly antifungal and the MIC values were comparable to nystatin. Most of the Schiff bases were strongly cytotoxic. In particular, those with pyridine-2-carboxaldehyde and 2,3-butanedione have CD(50) values of 5.5, 1.9-2.0 microg ml(-1), respectively, against leukemic cells, while against colon cancer cells, the values were 3.7 and 2.0 microg ml(-1), respectively. The glyoxal Schiff base was strongly active only against leukemic cell with CD(50) value of 4.0 microg ml(-1). The present findings have been compared with standard drugs.

• Authors: Md Tofazzal Hossain Tarafder, Azahari Kasbollah, N Saravanan, Karen A Crouse, Abdul M Ali, Khor Tin Oo
• Journal: Journal of biochemistry, molecular biology, and biophysics : JBMBB : the official journal of the Federation of Asian and Oceanian Biochemists and Molecular Biologists (FAOBMB) (J Biochem Mol Biol Biophys) Vol. 6 Issue 2 Pg. 85-91 (Apr 2002) ISSN: 1025-8140 [Print] England
• PMID: 12186762 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Anti-Bacterial Agents
• Antineoplastic Agents
• Hydrazines
• Ligands
• Schiff Bases
• methyldithiocarbazate

Topics

• Anti-Bacterial Agents (chemical synthesis, chemistry, pharmacology)
• Antineoplastic Agents (chemical synthesis, chemistry, pharmacology)
• Chemical Phenomena
• Chemistry, Physical
• Drug Screening Assays, Antitumor
• Humans
• Hydrazines (chemical synthesis, chemistry, pharmacology)
• Ligands
• Microbial Sensitivity Tests
• Schiff Bases (chemical synthesis, chemistry, pharmacology)
• Structure-Activity Relationship
• Tumor Cells, Cultured