Solution properties of metal ion complexes formed with the antiviral and cytostatic nucleotide analogue 9-[2-(phosphonomethoxy)ethyl]-2-amino-6-dimethylaminopurine (PME2A6DMAP)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F14%3A00435258" target="_blank" >RIV/61388963:_____/14:00435258 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1139/cjc-2014-0041" target="_blank" >http://dx.doi.org/10.1139/cjc-2014-0041</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1139/cjc-2014-0041" target="_blank" >10.1139/cjc-2014-0041</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solution properties of metal ion complexes formed with the antiviral and cytostatic nucleotide analogue 9-[2-(phosphonomethoxy)ethyl]-2-amino-6-dimethylaminopurine (PME2A6DMAP)

Popis výsledku v původním jazyce

The acidity constants of protonated 9-[2-(phosphonomethoxy) ethyl]-2-amino-6-dimethylaminopurine (H-3(PME2A6DMAP)(+)) are considered, and the stability constants of the M(H;PME2A6DMAP)(+) and M(PME2A6DMAP) complexes (M2+ = Mg2+, Ca2+, Sr2+, Ba2+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, or Cd2+) were measured by potentiometric pH titrations in aqueous solution (25 degrees C; I = 0.1 mol/L, NaNO3). In the M(H;PME2A6DMAP)(+) species, H+ and M2+ (mainly outersphere) are at the phosphonate group; this is relevant forphosphoryl-diester bridges in nucleic acids because, in the present system, there is no indication for a M2+-purine binding. This contrasts, for example, with the complexes formed by 9-[2-(phosphonomethoxy) ethyl] adenine, M(H;PMEA)(+), where M2+ is mainly situated at the adenine residue. Application of log K-M(R-PO3)(M) vs center dot pK(H(R-PO3))(H) plots for simple phosph(on) ate ligands, R-PO32- (R being a residue that does not affect M2+ binding), proves that all M(PME2A6DMAP) comple

Název v anglickém jazyce

Solution properties of metal ion complexes formed with the antiviral and cytostatic nucleotide analogue 9-[2-(phosphonomethoxy)ethyl]-2-amino-6-dimethylaminopurine (PME2A6DMAP)

Popis výsledku anglicky

The acidity constants of protonated 9-[2-(phosphonomethoxy) ethyl]-2-amino-6-dimethylaminopurine (H-3(PME2A6DMAP)(+)) are considered, and the stability constants of the M(H;PME2A6DMAP)(+) and M(PME2A6DMAP) complexes (M2+ = Mg2+, Ca2+, Sr2+, Ba2+, Mn2+, Co2+, Ni2+, Cu2+, Zn2+, or Cd2+) were measured by potentiometric pH titrations in aqueous solution (25 degrees C; I = 0.1 mol/L, NaNO3). In the M(H;PME2A6DMAP)(+) species, H+ and M2+ (mainly outersphere) are at the phosphonate group; this is relevant forphosphoryl-diester bridges in nucleic acids because, in the present system, there is no indication for a M2+-purine binding. This contrasts, for example, with the complexes formed by 9-[2-(phosphonomethoxy) ethyl] adenine, M(H;PMEA)(+), where M2+ is mainly situated at the adenine residue. Application of log K-M(R-PO3)(M) vs center dot pK(H(R-PO3))(H) plots for simple phosph(on) ate ligands, R-PO32- (R being a residue that does not affect M2+ binding), proves that all M(PME2A6DMAP) comple

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Canadian Journal of Chemistry

ISSN

0008-4042

e-ISSN

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Svazek periodika

92

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

10

Strana od-do

771-780

Kód UT WoS článku

000343117300013

EID výsledku v databázi Scopus

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