[Analytical profile of 1-[3-(3-propoxyphenylcarbamoyloxy)-2-hydroxypropyl]-4-(3-trifluoromethylphenyl)piperazinium chloride].
The purpose of the paper was the completing of the experimentally estimated physicochemical descriptors spectrum of 1-[3-(3-propoxyphenylcarbamoyloxy)-2-hydroxypropyl]-4-(3-trifluoromethylphenyl)piperazinium chloride (labelled as 8e), an effective, highly lipophilic compound against non-tuberculous M. kansasii My 235/80. The identity of the structure 8e was verified by 1Hand 13C-NMR spectral data, IR spectrometry and by elemental analysis as well. The readout from mass spectrometry confirmed an existence of the molecular ion [M + H+]+. The purity of the evaluated compound 8e was checked by absorption thin-layer chromatography, the stability of its aqueous and methanolic solutions was investigated under UV/VIS light. The values of some physicochemical descriptors assigned to 8e, which had been previously published (pKa, log Pexp), were correlated with the constants associated with some antimycobacterially active molecules which are commonly used in therapeutical practice (isoniazid, pyrazinanide, para-aminosalicylic acid, ethionamide, streptomycine). For the content determination of the molecule of 8e, RP-HPLC (reversed-phase HPLC) method with an internal standard and UV/VIS spectrophotometry at the wavelength of 238 nm (aqueous medium) and at 244 nm (methanolic medium) were used.
Univerzita Komenského Bratislava, Farmaceutická fakulta, Katedra farmaceutickej chémie. malik@fpharm.uniba.sk
Ivan
I
Malík
D000995:Antitubercular Agents / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D009170:Nontuberculous Mycobacteria / Q000187:drug effects*; D010879:Piperazines / Q000737:chemistry*; D013053:Spectrophotometry
C570768:1-(3-(3-propoxyphenylcarbamoyloxy)-2-hydroxypropyl)-4-(3-trifluoromethylphenyl)piperazinium chloride; D000995:Antitubercular Agents; D010879:Piperazines