| 3985498 | 
		[5-(6-methylaminopurin-9-yl)-3-phosphonooxy-oxolan-2-yl]methoxyphosphonic acid | 
	
	
		| 4526919 | 
		9-[4-(hydroxy-oxido-phosphoryl)oxy-5-[(hydroxy-oxido-phosphoryl)oxymethyl]oxolan-2-yl]-N-methyl-purin-6- amine | 
	
	
		| 5311302 | 
		diazanium 9-[(2R,4S,5R)-4-(hydroxy-oxido-phosphoryl)oxy-5-[(hydroxy-oxido-phosphoryl)oxymethyl]oxolan-2-yl]-N-meth yl-purin-6-amine | 
	
	
		| 5311303 | 
		[(2R,3S,5R)-5-(6-methylaminopurin-9-yl)-2-(phosphonooxymethyl)oxolan-3-yl]oxyphosphonic acid | 
	
	
		| 6324642 | 
		[(2S,3R,5R)-5-(6-methylaminopurin-9-yl)-3-phosphonooxy-oxolan-2-yl]methoxyphosphonic acid | 
	
	
		| 6603925 | 
		9-[(2R,4R,5S)-4-(hydroxy-oxido-phosphoryl)oxy-5-[(hydroxy-oxido-phosphoryl)oxymethyl]oxolan-2-yl]-N-meth yl-purin-6-amine |