5'-O-(dimethoxytrityl)-N6-[2-(4-nitrophenyl)ethoxycarbonyl]-3'-O-[2-(4-nitrophenyl)ethylsulfonyl]adenosine 2'-(2-cyanoethyl N,N-diisopropylphosphoramidite) 、
3-[1-[9-[2-[Bis(4-methoxyphenyl)-phenylmethoxy]ethoxymethyl]purin-6-yl]-2,6-dioxopiperidin-3-yl]propanoic acid 、 (9-{(2R,3R,5S)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-3-[(2-cyano-ethoxy)-diisopropylamino-phosphanyloxy]-tetrahydro-furan-2-yl}-9H-purin-6-yl)-carbamic acid 2-(4-nitro-phenyl)-ethyl ester 生成 3'-deoxyadenylyl-(2'-5')-2'adenylic acid 2'{2-[(adenin-9-yl)methoxy]ethyl} ester