Abstract
The 4,6-bis[2′(diethylamino)ethoxy]2,8,10-trimethylpyrido[3,2-g]quinoline (BG 637) is one of the compound from the pyrido[3,2-g] quinolines family. This compound had in vitro activity against the resistant cells and can reverse the multidrug resistance developed during the chemotherapeutic treatments.
To characterize BG 637, techniques such as differential scanning calorimetry (DSC), Fourier transform infrared spectrometer (FTIR), ultra violet spectrophotometry (UV), gas chromatography coupled with mass spectrometry (GC/MS), nuclear magnetic resonance (NMR) and X-ray powder diffraction (XRPD) were used. Several of them were also used to show the stability of the drug during various storage conditions.
DSC, FTIR and UV were used as screening techniques for assessing the compatibility of BG 637 with several commonly used pharmaceutical excipients. We compared the properties of the pure drug with those of binary mixture drug/excipient. Studied excipients were lactose monohydrate, microcrystalline cellulose, polyvinylpyrrolidone, sodium croscarmellose and magnesium stearate. Melting temperature and enthalpy of BG 637 in binary mixtures were similar to theoretical values. These results showed that BG 637 is a very stable compound and compatible with several pharmaceutical excipients.
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Abbas, D., Kaloustian, J., Orneto, C. et al. DSC and physico-chemical properties of a substituted pyridoquinoline and its interaction study with excipients. J Therm Anal Calorim 93, 353–360 (2008). https://doi.org/10.1007/s10973-008-9062-7
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DOI: https://doi.org/10.1007/s10973-008-9062-7