Hydrolysis of the amide bond in N-acetylated l-methionylglycine catalyzed by various platinum(II) complexes under physiologically relevant conditions
作者:Marija D. Živković、Darko P. Ašanin、Snežana Rajković、Miloš I. Djuran
DOI:10.1016/j.poly.2010.12.039
日期:2011.4
D2O. Under these experimental conditions, a very slow cleavage of the Met–Gly amide bond was observed and this hydrolytic reaction proceeds through the intermediate [Pt(L)(H2O)(MeCOMet–Gly–S)]+ complex. In general, it can be concluded that faster hydrolytic cleavage of the MeCOMet–Gly dipeptide was observed in the reaction with the chloride complex than with corresponding CBDCA Pt(II) complexes. The
可以得出结论,与相应的CBDCA Pt(II)配合物相比,在与氯化物配合物的反应中观察到MeCOMet-Gly二肽的水解裂解更快。还通过1H NMR光谱研究了Pt(II)配合物对MeCOMet-Gly二肽中酰胺键水解裂解的空间效应。已发现,水解速率随着CBDCA和氯铂Pt(II)配合物的空间体积增加而降低(en> 1,2-pn> dach)。这些结果有助于更好地理解Pt(II)抗肿瘤药物的毒副作用,在设计新的潜在的Pt(II)抗肿瘤药物(最好是低毒副作用)时应予以考虑。还通过1H NMR光谱研究了Pt(II)配合物对MeCOMet-Gly二肽中酰胺键水解裂解的空间效应。已发现,水解速率随CBDCA和氯铂Pt(II)配合物的空间体积增加而降低(en> 1,2-pn> dach)。这些结果有助于更好地理解Pt(II)抗肿瘤药物的毒副作用,在设计新的潜在的Pt(II)抗肿瘤药物(最好是低毒副作用)时应予以考虑。还通过1H