1,1'-<(4-morpholinyl)phosphorylidenedioxy>bis-1H-benzotriazole 、
5’-O-(叔丁基二甲基甲硅烷基)胸苷 以80%的产率得到Morpholin-4-yl-phosphonic acid benzotriazol-1-yl ester (2R,3S,5R)-2-(tert-butyl-dimethyl-silanyloxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-3-yl ester