phenyl 5'-O-t-butyldimethylsilyl-2'-deoxycytidylyl(3'-5')-3'-O-t-butyldimethylsilyl-2'-deoxyadenosine                                                                                                                                                                                                                                                                                                          生成                                                 1-[(2R,4S,5R)-4-[[(2R,3S,5R)-5-(6-aminopurin-9-yl)-3-hydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(hydroxymethyl)oxolan-2-yl]-4-iminopyrimidin-2-olate