Application of UV spectrophotometry and reversed-phase HPLC to determine the ionization constant of a new biologically active compound
- Authors: Tsecheev A.T.1, Karpenko Y.N.1,2
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Affiliations:
- Perm State Pharmaceutical Academy
- Parma Clinical LLC
- Issue: Vol 23, No 2 (2023)
- Pages: 60-65
- Section: PHARMACEUTICAL CHEMISTRY, PHARMACOGNOSY
- URL: https://ogarev-online.ru/2410-3764/article/view/131255
- DOI: https://doi.org/10.55531/2072-2354.2023.23.2.60-65
- ID: 131255
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Abstract
Aim – to determine the ionization constant (pKa) of the biologically active compound 2-ABPPC by UV spectrophotometry and high performance liquid chromatography (HPLC).
Material and methods. The object of the study was the substance 2-ABPPC (2-amino-1-(4-bromophenyl)-5-(3,3-dimethyl-2-oxobutylidene)-4-oxo-4,5-dihydro-1H-pyrrole-3- carboxamide). The methods of UV spectrophotometry and high performance liquid chromatography were used to determine the ionization constant. The spectrophotometric analysis was carried out on a Shimadzu UV-1800 spectrophotometer. The chromatographic determination of the pKa value was carried out on an LC-20 Prominence liquid chromatograph (Shimadzu) using a Zorbax Extend-C18 reversed-phase column.
Results. In the course of study, it was found that 2-ABPPC has one pKa value. When using two different methods to estimate the ionization constant, the comparable results were obtained: 7.64 (UV spectrophotometry method) and 7.40 (reversed phase HPLC method).
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##article.viewOnOriginalSite##About the authors
Arthur T. Tsecheev
Perm State Pharmaceutical Academy
Author for correspondence.
Email: arthurtse@yandex.ru
ORCID iD: 0000-0001-5774-9504
a postgraduate student of the Department of Toxicological chemistry
Russian Federation, PermYurii N. Karpenko
Perm State Pharmaceutical Academy; Parma Clinical LLC
Email: arthurtse@yandex.ru
ORCID iD: 0000-0003-3174-3678
PhD, Associate professor of the Department of Toxicological chemistry
Russian Federation, Perm; PermReferences
- -amino-1-(4-bromophenyl)-5-(3,3-dimethyl-2-oxobutylidene)-4-oxo-4,5-dihydro-1H-pyrrol-3-carboxamide exhibiting cytotoxic activity against human tumoral cells. Patent №2 753 480 Russian Federation №2020130076; application 14.09.20; publicated 17.08.21. Bull. №23. 9 p. (In Russ.). [2-Амино-1-(4-бромфенил)-5-(3,3-диметил-2-оксобутилиден)-4-оксо-4,5-дигидро-1Н-пиррол-3-карбоксамид, проявляющий цитотоксическую активность в отношении опухолевых клеток человека. Патент №2 753 480. Российская Федерация №2020130076; заявл. 14.09.20; опубл. 17.08.21, Бюллетень №23, 9 с.].
- Box K, Comer J. Using Measured pKa, LogP and Solubility to Investigate Supersaturation and Predict BCS Class. Curr Drug Metab. 2008;9(9):869-878. doi: 10.2174/138920008786485155
- Watkins W, Landaverry Y, Léger R, et al. The relationship between physicochemical properties, In vitro activity and pharmacokinetic profiles of analogues of diamine-Containing efflux pump inhibitors. Bioorganic & Medicinal Chemistry Letters. 2003;13(23):4241-4244. doi: 10.1016/j.bmcl.2003.07.030
- Bulgakova EA, Karpenko YuN, Yarygina TI. Determination of 3-hydroxy-3-pyrroline-2-one in urine and study of its excretion from the organism of laboratory animals. Pharmacy & Pharmacology. 2017;5(4):331-343. (In Russ.). [Булгакова Е.А., Карпенко Ю.Н., Ярыгина Т.И. Определение производного 3-гидрокси-3-пирролин-2-она в моче и изучение его экскреции из организма лабораторных животных. Фармация и фармакология. 2017;5(4):331-343]. doi: 10.19163/2307-9266-2017-5-4-331-343
- Reijenga J, van Hoof A, van Loon A, Teunissen B. Development of Methods for the Determination of pKa Values. Anal Chem Insights. 2013;8:53-71. doi: 10.4137/aci.s12304
- Tsecheev AT, Karpenko YuN, Igidov NM. UV spectrophotometry in the analysis of a new derivative 2-aminopyrrrole with anti-tumor activity. Journal of pharmaceuticals quality assurance issue. 2022;2(36):4-10. (In Russ.). [Цечеев А.Т., Карпенко Ю.Н., Игидов Н.М. Метод УФ-спектрофотометрии в анализе нового производного 2-аминопиррола с противоопухолевой активностью. Вопросы обеспечения качества лекарственных средств. 2022;2(36):4-10].
- Hossain MF, Obi C, Shrestha A, Khan MOF. UV-Metric, pH-Metric and RP-HPLC Methods to Evaluate the Multiple pKa Values of a Polyprotic Basic Novel Antimalarial Drug Lead, Cyclen Bisquinoline. Mod Chem Appl. 2014;2(4):1-7. doi: 10.4172/2329-6798.1000145
- Albert A, Serjeant EP. Ionisation Constants of Acids and Bases: a laboratory manual. London: Methuen&CoLtd, 1962.
- Pandey M, Jaipal A, Kumar A, et al. Determination of pKa of felodipine using UV-Visible spectroscopy. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2013;115:887-890. doi: 10.1016/j.saa.2013.07.001
- Singh S, Sharda N, Mahajan L. Spectrophotometric determination of pKa of nimesulide. Int J Pharm. 1999;176(2):261-264. doi: 10.1016/s0378-5173(98)00304-4
- Blanco S, Almandoz M, Ferretti F. Determination of the overlapping pKa values of resorcinol using UV-visible spectroscopy and DFT methods. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2005;61(1-2):93-102. doi: 10.1016/j.saa.2004.03.020
- Tsecheev AT, Karpenko YuN. Development of HPLC conditions for assessing the quality of a new biologically active compound with cytotoxic activity. In: Pharmaceutical education SamSMU. History, modernity, prospects. Samara, 2021:185-190. (In Russ.). [Цечеев А.Т., Карпенко Ю.Н. Разработка условий ВЭЖХ для оценки качества нового биологически активного соединения с цитотоксической активностью. В сб.: Фармацевтическое образование СамГМУ. История, современность, перспективы. Самара, 2021:185-190].
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