5-methyl-1-[(2R,5R)-4-oxo-5-(trityloxymethyl)oxolan-2-yl]pyrimidine-2,4-dione

乙醇

5'-O-三苯甲基-3'-O-甲磺酰基胸苷

3'-Tosyl-5'-O-trityl thymidine

2-((2R,3R)-5-Benzyloxy-2-trityloxymethyl-tetrahydro-furan-3-yloxy)-5-methyl-3H-pyrimidin-4-one