| http://www.w3.org/ns/prov#value | - 2???,3???,5???-triesters of ??-D-2???-methyl-(cytidine, 5-fluorocytidine, guanosine, uridine, adenosine, or thymidine) wherein (i) all three esters are amino acid esters; (ii) all three esters are independently alkyl or aryl esters; (iii) the 2??? ester is an amino acid ester, the 3??? ester is an amino acid ester and the 5???-ester is an alkyl or aryl ester; (iv) the 2??? ester is an amino acid
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