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- W1963584368 abstract "Diisopropyl, diethyl, bis(2-methoxyethyl) and isopropyl 2-methoxyethyl esters of 5′-pivaloyl-2′-(tetrahydropyran-2-yl)uridin-3′-yl phosphate have been prepared. The 2′-protecting group has been removed under acidic conditions, and the isomerization of the resulting ribonucleoside 3′-phosphotriester to its 2′-counterpart and the cleavage of the isomeric mixture to 2′- and 3′-phosphodiesters and a 2′,3′-cyclic phosphate has been followed by reverse phase HPLC in aqueous hydrogen chloride and several buffer solutions over a wide acidity range from H0 – 1.5 to pH 8. The βlg values of the buffer-independent partial reactions, and the βlg and Brønsted α and β values of the buffer catalyzed reactions have been determined. The mechanisms of various partial reactions are discussed on the basis of the structural effects observed." @default.
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- W1963584368 date "1998-01-01" @default.
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- W1963584368 title "Hydrolysis and intramolecular transesterification of ribonucleoside 3′-phosphotriesters: the effect of alkyl groups on the general and specific acid–base-catalyzed reactions of 5′-O-pivaloyluridin-3′-yl dialkyl phosphates" @default.
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- W1963584368 doi "https://doi.org/10.1039/a707095k" @default.
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