5'-O-(4,4'-Dimethoxytrityl)thymidine is used in the solid-phase synthesis of polynucleotides and polythymidylic acids by the block coupling phosphotriester method. Further, it is used in the stereoselective synthesis of 3'-deoxy-3'-threo-hydroxymethyl nucleoside. In addition to this, it is used as a research tool for antiviral and anticancer studies.

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