Ternary Complexes of Pt(Ii) with Guanosine and Amino-Acids of the Type Trans-[(Guo)2pt(Amach)2]Cl2, Where Amach Is Glycine, L-Alanine, L-Valine, and L-Isoleucine

 
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1991 (EN)
Ternary Complexes of Pt(Ii) with Guanosine and Amino-Acids of the Type Trans-[(Guo)2pt(Amach)2]Cl2, Where Amach Is Glycine, L-Alanine, L-Valine, and L-Isoleucine (EN)

Garoufis, A. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Garoufis, A. (EN)

The complexes of the general formulae trans-[(guo)2Pt(amacH)2]Cl2 with amacH = Glycine, L-Alanine, L-Valine, and L-Isoleucine, were isolated as solid adducts from the reactions of trans-[(amacH)2PtCl2] with guo in aqueous solutions. The complexes were characterized with elemental analysis, conductivity measurements, IR, and H-1 NMR spectra. Guo coordinates through N(7) and the amino acids through their-NH2 groups. Two groups of proton signals for the amino acid protons were observed in the H-1 NMR spectra, due to their participation to nonequivalent hydrogen bonds. Ligand-ligand hydrophobic interactions were detected in the complexes. The various sugar conformations of guo were calculated, based on H-1 NMR and the results were discussed in relation to DNA-Pt-protein crosslinks, taking place with cis- and trans-DDP. (EN)

dinucleoside monophosphates (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

J Inorg Biochem (EN)

English

1991

<Go to ISI>://A1991EV19500004

Elsevier (EN)



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