The Faculty Of Pharmacy Discussed The Master’s Degree Thesis Entitled “Synthesis, Characterization, And Preliminary Antimicrobial Evaluation Of New Vanillic Acid Derivatives Containing 4H-1, 2, 4-Triazole Moiety” by Noor Ali Hussein and the Supervisor, Assist. Prof. May Mohammad Jawad, In the Pharmaceutical Chemistry department. The thesis aims to synthesize new vanillin-ttriazole derivatives and evaluate their pharmacological properties, which is a multi-step synthetic process. First, vanillic acid was reacted with methanol in the presence of thionyl chloride to form compound I, methylvanillate. A hydrazide derivative (compound II) was produced by adding hydrazine hydrate to an ethanol solution of methyl vanilla. The third compound is 2-(4-hydroxy-3-methoxybenzoyl)hydrazine-1-carbodithioate potassium salt, which was synthesized using a hydrazide derivative in an alcoholic potassium hydroxide and carbon disulfide solution, followed by the addition of hydrazine hydrate to the potassium salt (compound III), which produced compound IV. The reaction of the fourth compound with many aromatic and heterocyclic aldehydes substituted in ethanol led to the formation of thirteen final compounds. These compounds were investigated and characterized spectrophotometrically by an infrared spectrometer and a proton nuclear magnetic frequency spectrometer. Schiff base derivatives of the final compounds were tested for their antimicrobial activity against three references (amoxicillin, ciprofloxacin, and fluconazole). In general, all new compounds showed inhibitory activity towards E. coli; compound 12 showed a strong inhibitory effect against S. aureus bacteria; compound 15 showed significant inhibitory activity against C. albicans; and compound 10 showed varying degrees of inhibitory effects.
