| —— | 
                                        [(2R,3R,4R,5R)-4-[[(2R,3R,4R,5R)-5-(2-benzamido-6-oxo-3H-purin-9-yl)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]oxolan-2-yl]methoxy-methoxyphosphoryl]oxy-2-(6-benzamidopurin-9-yl)-5-(hydroxymethyl)oxolan-3-yl] [(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-(2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl methyl phosphate | 
                                        115383-40-9 | 
                                        C69H104N12O21P2Si4 | 
                                        1611.94 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        [(2R,3R,4R,5R)-4-[[(2R,3R,4R,5R)-5-(2-benzamido-6-oxo-3H-purin-9-yl)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]oxolan-2-yl]methoxy-methoxyphosphoryl]oxy-2-(6-benzamidopurin-9-yl)-5-[[(4-methoxyphenyl)-diphenylmethoxy]methyl]oxolan-3-yl] [(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-(2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl methyl phosphate | 
                                        115363-58-1 | 
                                        C89H120N12O22P2Si4 | 
                                        1884.29 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        [(2R,3R,4R,5R)-4-[[(2R,3R,4R,5R)-5-[2-benzamido-6-[2-(4-nitrophenyl)ethoxy]purin-9-yl]-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]oxolan-2-yl]methoxy-methoxyphosphoryl]oxy-5-(6-benzamidopurin-9-yl)-2-(hydroxymethyl)oxolan-3-yl] [(2R,3R,4R,5R)-3,4-bis[[tert-butyl(dimethyl)silyl]oxy]-5-(2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methyl methyl phosphate | 
                                        102302-33-0 | 
                                        C77H111N13O23P2Si4 | 
                                        1761.09 |