| —— | 
                                        N-[1-[(6aR,8R,9R,9aS)-9-cyano-9-methyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1403250-61-2 | 
                                        C25H42N4O6Si2 | 
                                        550.803 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(2R,3R,4S,5R)-3-cyano-4-[[hydroxy-di(propan-2-yl)silyl]oxy-di(propan-2-yl)silyl]oxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1491025-66-1 | 
                                        C25H44N4O7Si2 | 
                                        568.818 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(6aR,8R,9R,9aR)-9-methyl-9-methylsulfanyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1403249-55-7 | 
                                        C25H45N3O6SSi2 | 
                                        571.886 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(6aR,8R,9R,9aS)-9-azido-9-methyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1403249-53-5 | 
                                        C24H42N6O6Si2 | 
                                        566.805 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        1-[(6aR,8R,9R,9aR)-9-chloro-9-methyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-4-aminopyrimidin-2-one | 
                                        1403249-59-1 | 
                                        C22H40ClN3O5Si2 | 
                                        518.201 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        (2R,3R,4S,5R)-2-(4-amino-2-oxopyrimidin-1-yl)-4-[[hydroxy-di(propan-2-yl)silyl]oxy-di(propan-2-yl)silyl]oxy-5-(hydroxymethyl)-3-methyloxolane-3-carbonitrile | 
                                        1491025-69-4 | 
                                        C23H42N4O6Si2 | 
                                        526.781 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        1-[(6aR,8R,9R,9aS)-9-amino-9-methyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-4-aminopyrimidin-2-one | 
                                        1403249-67-1 | 
                                        C22H42N4O5Si2 | 
                                        498.77 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        1-[(6aR,8R,9R,9aS)-9-azido-9-methyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-4-aminopyrimidin-2-one | 
                                        1403249-66-0 | 
                                        C22H40N6O5Si2 | 
                                        524.768 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(6aR,8R,9R,9aR)-9-methyl-9-methylsulfonyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1403249-62-6 | 
                                        C25H45N3O8SSi2 | 
                                        603.885 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(6aR,8R,9R,9aS)-9-methyl-2,2,4,4-tetra(propan-2-yl)-9-(triazol-1-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-8-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1403249-64-8 | 
                                        C26H44N6O6Si2 | 
                                        592.843 | 
                                    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
                                                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
                                        | —— | 
                                        N-[(6aR,8R,9R,9aS)-8-(4-amino-2-oxopyrimidin-1-yl)-9-methyl-2,2,4,4-tetra(propan-2-yl)-6,6a,8,9a-tetrahydrofuro[3,2-f][1,3,5,2,4]trioxadisilocin-9-yl]acetamide | 
                                        1403249-68-2 | 
                                        C24H44N4O6Si2 | 
                                        540.808 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        2-methylpropyl (2S)-2-[[[(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-4-cyano-3-[[hydroxy-di(propan-2-yl)silyl]oxy-di(propan-2-yl)silyl]oxy-4-methyloxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate | 
                                        1491026-66-4 | 
                                        C36H60N5O10PSi2 | 
                                        810.045 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(2R,3R,4S,5R)-3-cyano-4-hydroxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1491021-51-2 | 
                                        C13H16N4O5 | 
                                        308.294 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        N-[1-[(2R,3R,4S,5R)-3-azido-4-hydroxy-5-(hydroxymethyl)-3-methyloxolan-2-yl]-2-oxopyrimidin-4-yl]acetamide | 
                                        1403567-97-4 | 
                                        C12H16N6O5 | 
                                        324.296 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        propan-2-yl (2S)-2-[[[(2R,3S,4R,5R)-4-azido-3-hydroxy-4-methyl-5-[4-(2-methylpropanoylamino)-2-oxopyrimidin-1-yl]oxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate | 
                                        1605283-90-6 | 
                                        C26H36N7O9P | 
                                        621.587 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        propan-2-yl (2S)-2-[[[(2R,3S,4R,5R)-4-cyano-3-hydroxy-4-methyl-5-[2-oxo-4-(2-propylpentanoylamino)pyrimidin-1-yl]oxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate | 
                                        1605283-80-4 | 
                                        C31H44N5O9P | 
                                        661.692 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        [(2R,3S,4R,5R)-4-azido-4-methyl-5-[4-(2-methylpropanoylamino)-2-oxopyrimidin-1-yl]-2-[[[[(2S)-1-oxo-1-propan-2-yloxypropan-2-yl]amino]-phenoxyphosphoryl]oxymethyl]oxolan-3-yl] 2-methylpropanoate | 
                                        1605283-89-3 | 
                                        C30H42N7O10P | 
                                        691.678 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        [(2R,3S,4R,5R)-4-cyano-4-methyl-5-[4-(2-methylpropanoylamino)-2-oxopyrimidin-1-yl]-2-[[[[(2S)-1-oxo-1-propan-2-yloxypropan-2-yl]amino]-phenoxyphosphoryl]oxymethyl]oxolan-3-yl] 2-methylpropanoate | 
                                        1605283-84-8 | 
                                        C31H42N5O10P | 
                                        675.676 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        methyl (2S)-2-[[[(2R,3R,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-3-hydroxy-4-methyl-4-methylsulfanyloxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate | 
                                        1403249-81-9 | 
                                        C21H29N4O8PS | 
                                        528.523 | 
                                    
                                                                                                                                            
                                        | —— | 
                                        [(2R,3S,4R,5R)-5-(4-amino-2-oxopyrimidin-1-yl)-4-azido-4-methyl-2-[[[[(2S)-1-oxo-1-propan-2-yloxypropan-2-yl]amino]-phenoxyphosphoryl]oxymethyl]oxolan-3-yl] 2-methylpropanoate | 
                                        1605283-86-0 | 
                                        C26H36N7O9P | 
                                        621.587 |