1-(3,5-di-O-benzyl-2-deoxy-α-D-erythro-pentofuranosyl)thymine

3,5-Di-O-benzyl-2-desoxy-β-D-ribofuranose-1-imidocarbonsaeuremethylester

5-(3',5'-Di-O-benzyl-2'-desoxy-α-D-ribofuranosyl)-3,6-bis(trifluoromethyl)-1,2,4-triazin