Hydrolysis and methanolysis of the phenyl ester of thymidine 3',5'-cyclic monophosphate: pH-dependent competition between PO and CO bond ruptures
: Oivanen M, Varila J, Hankamaki T, Koole LH, Lonnberg H
Publisher: INST ORGANIC CHEM AND BIOCHEM
: 1996
Collection of Czechoslovak Chemical Communications
COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS
: COLLECT CZECH CHEM C
: 61
: S26
: S29
: 4
: 0010-0765
pH-Rate profiles and product distributions for the hydrolytic reactions of the cis-phenyl ester of thymidine 3',5'-cyclic monophosphate have been determined over the pH-range 0-14. The pH-independent hydrolysis (pH 2-7) of the phosphotriester moiety appears to proceed mainly by cleavage of the C5'O bund, whereas the hydroxide- and hydronium-ion-catalyzed reactions involve rupture of one of the PO bonds.