| 摘要 |
Phosphotriester compound of general formula (I); wherein R is a radical - (CH2)n - S - X in which X is a radical (a) or -S-U, Z being O or S, and Y and U denote an alkyl, aryl or osidic radical, optionally substituted in particular by an OH, SH or NH2 group, and n is from 1 to 4, preferably 1 or 2, and Nu is a radical consisting of a biologically active compound residue or the dephosphorylated residue of a compound that is biologically active when it carries a phosphate or phosphonate group.
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