\sixheterov[ace]{
3s==\decaheterov[]{3==N;5==CH$\bf_3$;6==O;{{10}}==N;
4s==\heptamethylene{2==;6==\upnobond{N}{H};
7s==\sixheterov[e]{1==N;3==N}{1==CH$\bf_3$;2D==O;3==CH$\bf_3$;4D==O;6==(yl)}[]
}{1==(yl)}
}{8==(yl)}[ceh]
}{}[]
\sixheterov[ace]{
3s==\decaheterov[]{3==N;5==CH$\bf_3$;6==O;{{10}}==N;
4s==\heptamethylene{2==;6==\upnobond{N}{H};
7s==\sixheterov[e]{1==N;3==N}{1==CH$\bf_3$;2D==O;3==CH$\bf_3$;4D==O;6==(yl)}[]
}{1==(yl)}
}{8==(yl)}[ceh]
}{}[]