C07D401/00
Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
C07D401/00
Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
C07D401/06
linked by a carbon chain containing only aliphatic carbon atoms
C07D401/06
linked by a carbon chain containing only aliphatic carbon atoms