phenylethynyl-N,N-diethylaminodimethylsilane 、
1-<5'-O-(monomethoxytrityl)-3'-deoxy-3'-phenylseleno-β-D-xylofuranosyl>thymine 以
四氢呋喃 为溶剂,
以97%的产率得到1-{(2R,3S,4S,5R)-3-(Dimethyl-phenylethynyl-silanyloxy)-5-[(4-methoxy-phenyl)-diphenyl-methoxymethyl]-4-phenylselanyl-tetrahydro-furan-2-yl}-5-methyl-1H-pyrimidine-2,4-dione