9-(2'-deoxy-β-D-erythro-pentofuranosyl)-6-<(dimethylamino)methylidene>-9H-isoguanine
2'-deoxyisoguanosine
4,4'-dimethoxytrityl chloride
triethylamine carbonate
9-<2'-deoxy-5'-O-(4,4'-dimethoxytrityl)-β-D-erythro-pentofuranosyl>-6-<(dimethylamino)methylidene>-9H-isoguanine