(2R) -2- 2- (2-PROPYL) PHOSPHONYMETHOXY -3-P-TOLUENE-SULFONYLOXY-1-TRIMETHYLCETETOXYPROPANE AND OF BASES (S) -N- (3-HYDROXY-2-PHOSPHONYL METHOXYPROPYL) BASES PURE AND PYRIMIDIC HETEROCYCLICS

摘要

The present invention relates to a compound of Formula I CHEM wherein R, R min and R sec are the same or different, and each represents a C1-4-alkyl group, and x represents an integer between 1 and 3, preferably 1, which is useful in synthesising antiviral nucleosides.