乙醇

5'-O-(2,7-Dibromo-9-phenylxanthen-9-yl)thymidine

5'-O-[2,7-Dibromo-9-[3-(trifluoromethyl)phenyl]xanthen-9-yl]thymidine

5'-O-[dimethyl(1,1,2-trimethylpropyl)silyl]thymidine

5'-O-(triisopropylsilyl)thymidine