[(2R,3R,5S)-2-(6-benzamidopurin-9-yl)-5-[[(4-methoxyphenyl)-diphenylmethoxy]methyl]oxolan-3-yl] 2-(4-nitrophenyl)ethyl hydrogen phosphate;N,N-diethylethanamine 、
N6-benzoyl-3'-deoxyadenylyl-<2'-P-2-(p-nitrophenyl)ethyl)>-> 5'>-N6-benzoyl-2'-O-<(tert-butyldimethyl)silyl>-3'-deoxyadenosine 生成 N
6-benzoyl-3'-deoxy-5'-O-(monomethoxytrityl)adenylyl-<2'-
P-(2-(p-nitrophenyl)ethyl)>-> 5'>-N6-benzoyl-3'-deoxyadenylyl-<2'-P-(2-(p-nitrophenyl)ethyl)>-> 5'>-N6-benzoyl-2'-O-<(tert-butyldimethyl)silyl>-3'-deoxyadenosine