4,4'-双甲氧基三苯甲基氯

N-苯甲酰-2'-脱氧胞苷

2'-脱氧胞嘧啶核苷

5'-O-(4,4'-dimethoxytrityl)N-benzoyl-cytosine-3'-O-(2-cyanoethyl) H-phosphonate

5'-O-(4,4'-dimethoxytrityl)-4-N-benzoyl-2'-deoxycytidine-3'-H-phosphonate triethylammonium salt