六氟异丙醇 、
5'-O-DMTr-2'-OMeU-methyl phosphonamidite 在
吡啶 、
四氮唑 、
碘 作用下,
生成 (S)-Methyl-phosphonic acid (2R,3R,4R,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-methoxy-tetrahydro-furan-3-yl ester 2,2,2-trifluoro-1-trifluoromethyl-ethyl ester 、
(R)-Methyl-phosphonic acid (2R,3R,4R,5R)-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-methoxy-tetrahydro-furan-3-yl ester 2,2,2-trifluoro-1-trifluoromethyl-ethyl ester