Microwave-Assisted Synthesis and in Vitro Antibacterial Activity of Novel Steroidal 1,2,4-Triazole Schiff Base Derivatives

Abstract

A series of novel Schiff bases containing both a 1,2,4-triazole and deoxycholic acid skeleton have been synthesised in excellent yields and in high purity by means of microwave irradiation. The structures of the target compounds were characterised by MS, IR and NMR as well as elemental analysis. All the products were evaluated for their in vitro antibacterial activities against Gram positive (Staphylococcus aureus and Bacillus subtilis) and Gram negative bacteria (Pseudomonas seruginosa and Escherichia coli). Four of the compounds displayed varying levels of antibacterial activity against P. aeruginosa and S. aureus, but none of the compounds showed any activity against E. coli and B. subtilis.