The Determination of Protonation Constants of Peptidomimetic Cyclophanes in Binary Methanol-Water Mixtures [PDF]
Journal of Analytical Methods in Chemistry, 2016 The protonation constants of new group of peptidomimetic cyclophanes with valine or phenylalanine moieties incorporated into the macrocyclic skeleton as well as their linear analogues were determined by potentiometric measurements in solutions of ...
Piotr Seliger +3 more
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Synthesis of Potential Haptens with Morphine Skeleton and Determination of Protonation Constants [PDF]
Molecules, 2020 Vaccination could be a promising alternative warfare against drug addiction and abuse. For this purpose, so-called haptens can be used. These molecules alone do not induce the activation of the immune system, this occurs only when they are attached to an
István Köteles +4 more
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Equilibrium constants and protonation site for N-methylbenzenesulfonamides [PDF]
Beilstein Journal of Organic Chemistry, 2011 The protonation equilibria of four substituted N-methylbenzenesulfonamides, X-MBS: X = 4-MeO (3a), 4-Me (3b), 4-Cl (3c) and 4-NO2 (3d), in aqueous sulfuric acid were studied at 25 °C by UV–vis spectroscopy.
José A. Moreira +3 more
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Protolytic properties and biological activity of spinorphin and its butyric acid derivatives in aqueous solution [PDF]
Amino AcidsThe present work describes the protolytic properties and in vitro biological activity of spinorphin (Leu-Val-Val-Tyr-Pro-Trp-Thr) and three spinorphin derivatives containing butyric acid residue: Butyryl-Lys-Lys-Leu-Leu-Val-Tyr-Pro-Trp-Thr, Butyryl-Lys ...
Marek Pająk +6 more
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A spectrophotometric study of the protonation processes of some N-[1-(benzimidazol)-1-yl]methylbenzamide derivatives [PDF]
Journal of the Serbian Chemical Society, 2000 The protonation of N-[1-(benzimidazol)-1-yl]methylbenzamide derivatives in aqueous acids (H2SO4) media was investigated, using a spectrophotometric method. The investigated compounds have two protonation processes. The first protonation process occurs in
NADA U. PERISIC-JANJIC +2 more
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Protonation constants of hydroxybenzenes in hydrochloric acid [PDF]
Journal of the Serbian Chemical Society, 1999 The absorption spectra of monohydroxybenzene (Fen), 1,3-dihydroxybenzene (Rez), 1,4-dihydroxybenzene (Hi), 1,2,3-trihydroxybenzene (Pg) and 1,3,5-trihydroxybenzene (Fg) in aqueous solutions of hydrochloric acid with different values of the Hammett ...
S. B. TOSIC +2 more
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Acta Chimica Slovenica, 2023 A potentiometric investigation has been carried out to disclose the coordination properties of Dacarbazine, 5-(3,3-dimethyl-1-triazeno)-imidazole-4-carboxamide (abbreviated DTIC) with particular transition metal ions (Zn2+, Cu2+, Ni2+ and Co2+).
Hasan Atabey +2 more
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The protolytic properties of the sialorphin derivative Pal-Lys-Lys-Gln-His-Asn-Pro-Arg in an aqueous solution [PDF]
Acta Poloniae Pharmaceutica, 2023 The present work describes the protolytic properties of the sialorphin derivative (Pal-Lys- Lys-Gln-His-Asn-Pro-Arg) in an aqueous solution, at constant temperature 25.0 ± 0.1 °C and ionic strength 0.1 M (NaClO4), over the entire pH range.
Marek Pająk +3 more
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Protonation Equilibrium of Linear Homopolyacids [PDF]
Kemija u Industriji, 2015 The paper presents a short summary of investigations dealing with protonation equilibrium of linear homopolyacids, in particularly those of high charge density.
Požar J.
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Studies of a Tripodal Biomimetic Siderophore Analog: An Efficient Encapsulation for Fe(III) Ion [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2020 A new tris-(2-aminoethyl)amine (TREN) capped tripodal Schiff base ligand has been developed by mimicking structural features of a natural siderophore, Bacillibactin, by substituting the catechol units with salicylaldehyde and employing amino acid as a ...
Minati Baral +2 more
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