p. 2924 - 2925
(1978)6-benzyloxy-N2-[bis-(4-methoxy-phenyl)-phenyl-methyl]-9-[4-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-N8-(6-methyl-dipyrido[1,2-a;3',2'-d]imidazol-2-yl)-9H-purine-2,8-diamine
2-phenyl(N,N,O)azoxy-6-methyldipyridi<1,2-a:3',2'-d>imidazole
6-benzyloxy-9-[4-(tert-butyl-dimethyl-silanyloxy)-5-(tert-butyl-dimethyl-silanyloxymethyl)-tetrahydro-furan-2-yl]-N8-(6-methyl-dipyrido[1,2-a;3',2'-d]imidazol-2-yl)-9H-purine-2,8-diamine
2-nitro-6-methyldipyridi<1,2-a:3',2'-d>imidazole