title: Synthesis and in vitro antimycobacterial activity of N1-nicotinoyl-3-(4'-hydroxy-3'-methyl phenyl)-5-[(sub)phenyl]-2-pyrazolines.
abstract: A series of N1-nicotinoyl-3- (4'-hydroxy-3'-methyl phenyl)-5-(substituted phenyl)-2-pyrazolines were synthesized by the reaction between isoniazid (INH) and chalcones and were tested for their antimycobacterial activity in vitro against Mycobacterium tuberculosis H37Rv (MTB) and INH-resistant M. tuberculosis (INHR-MTB) using the agar dilution method. Among the synthesized compounds, compound (i) N1-nicotinyl-3-(4'-hydroxy-3'-methyl phenyl)-5-(1''-chlorophenyl)-2-pyrazoline was found to be the most active agent against MTB and INHR-MTB, with minimum inhibitory concentration of 0.26 microm. When compared to INH-compound i was found to be 2.8- and 43.7-fold more active against MTB and INHR-MTB, respectively.
authors.affiliation: Faculty of Pharmacy, Jamia Hamdard University, Department of Pharmaceutical Chemistry, Hamdard Nagar, New Delhi-110062, India.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Shaharyar
authors.forename: Anees Ahamed
authors.initials: AA
authors.lastname: Siddiqui
authors.forename: Mohamed Ashraf
authors.initials: MA
authors.lastname: Ali
authors.forename: Dharmarajan
authors.initials: D
authors.lastname: Sriram
authors.forename: Perumal
authors.initials: P
authors.lastname: Yogeeswari
mesh_terms: D000818:Animals; D000995:Antitubercular Agents / Q000138:chemical synthesis* / Q000494:pharmacology*; D002522:Chlorocebus aethiops; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D009169:Mycobacterium tuberculosis / Q000187:drug effects*; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000494:pharmacology*; D014709:Vero Cells
chemical_list: D000995:Antitubercular Agents; D011720:Pyrazoles