N-glycosides Wherein The N Is Part Of An N-hetero Ring Which Hetero Ring Is Part Of A Polycyclo Ring System Containing An N-hetero Ring And An Additional Hetero Ring (e.g., Rebeccamycin, Etc.) Patents (Class 536/27.1)
- Multideoxy or didehydro (Class 536/27.14)
- The bicyclic ring system consists of a 1,3-diazine ring, which may be hydrogenated, fused to a five-membered N-hetero ring (e.g., purine isoesters like tubercidin, toyocamycin, sangivamycin, sparsomycin A, etc.) (Class 536/27.2)
- The five-membered N-hetero ring is 1,3-diazole, which may be hydrogenated (e.g., 6-chloropurine nucleoside, nebularin, etc.) (Class 536/27.21)
- Carbonyl, thiocarbonyl, or nitrogen, other than as nitro or nitroso, bonded directly to the sugar ring (Class 536/27.22)
- Carbonyl, thiocarbonyl, additional hetero ring or nitrogen, other than as nitro or nitroso, attached indirectly to the sugar ring by acyclic nonionic bonding (Class 536/27.23)
- Arabinose is sugar moiety (Class 536/27.4)
- Ketose is sugar moiety (e.g., decoyinine, psicofuranosylpurines, etc.) (Class 536/27.5)
- Nitrogen, other than nitro or nitroso, bonded directly to the 6-position of a purine ring system (e.g., adenosine, etc.) (Class 536/27.6)
- Additional nitrogen bonded directly to the 2-position of the purine ring system (Class 536/27.61)
- Nitrogen, chalcogen, or additional carbon bonded directly to the 6-position nitrogen (e.g., 6-position nitrogen is substituted, etc.) (Class 536/27.62)
- Chalcogen, halogen, or benzene bonded directly to carbon of the purine ring system (e.g., isoguanosine, 2-fluoroadenosine, etc.) (Class 536/27.7)
- Chalcogen bonded directly to the 6- or 2-position of a purine ring system (e.g., inosine, etc.) (Class 536/27.8)