| abstract |
The (S)-isomer of a compound of formula (I), optionally nin admixture with up to 45% of the mixture by weight of nthe corresponding (R)-isomer: n nwherein the OH groups in the chain are optionally in nthe form of O-acyl, phosphate, cyclic acetal or cyclic ncarbonate derivatives thereof; having antiviral nactivity, a process for preparation and use as npharmaceuticals. |