Cleavage of the phosphodiester bond of uridylyl-(3 ',5 ')-8-carboxymethylaminoadenosine by hydronium, hydroxide and zinc(II) ions: A model study aimed at elucidating the potential of a carboxylate function as an intramolecular catalyst



: Mikkola S, Oivanen M, Neuvonen K, Piitari S, Ketomaki K, Lonnberg H

Publisher: MARCEL DEKKER INC

: 2000

: Nucleosides, Nucleotides and Nucleic Acids

: NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS

: NUCLEOS NUCLEOT NUCL

: 19

: 10-12

: 1675

: 1692

: 18

: 1525-7770

DOI: https://doi.org/10.1080/15257770008045452


Uridylyl-(3',5)-8-carboxymethylaminoadenosine has been synthesised, and its transesterification to uridine 2',3'-cyclic phosphate in the presence and absence of Zn2+ ion has been studied. The results show that a carboxylate function in the vicinity of the phosphodiester bond accelerates the metal ion promoted cleavage but not the metal ion independent reaction. Under acidic conditions, the predominant reaction is the cleavage of the side chain, giving the 8-amino derivative.



Last updated on 2024-26-11 at 15:43