This invention provides phosphate-modified nucleosides represented by the structural formula (I): wherein W is O or S, and wherein B, R
1
; R
3
and R
2
. are as defined herein. These compounds are useful as substrates for DNA/RNA polymerases, and as anti-viral agents in particular against HIV-1.
这项发明提供了由结构式(I)表示的
磷酸修饰核苷酸,其中W为O或S,而B、R1、R2和R3如此处所定义。这些化合物可作为DNA/RNA聚合酶的底物,特别是在抗击HIV-1方面作为抗病毒剂。