Photolabile Precursors of Cyclic Nucleotides with High Aqueous Solubility and Stability
作者:Lijuan Wang、John E. T. Corrie、John F. Wootton
DOI:10.1021/jo020040g
日期:2002.5.1
Photolabile phosphotriester derivatives of cyclic AMP and cyclic GMP are described, where the additional group on the phosphate is a 2-nitrobenzyl that bears an electron-withdrawing and dianionic substituent, This confers high aqueous solubility and excellent resistance to hydrolysis of the phosphotriester (t(1/2) for hydrolysis at pH 7, 22 degreesC, is > 3 months for the axial isomers 3a and 4a and > 1 month for the equatorial isomers 3b and 4b), The photolysis quantum yields are in the range 0.15-0.24, and the product release rate upon flash photolysis is 1.7 s(-1) at pH 7.0, 20 degreesC.