\sixheterov[]{
3s==\sixheterov[a]{
3s==\sixheterov[a]{
3s==\hexamethylenei[aE]{
6s==\hexamethylene{3==\downnobond{N}{H}}{1==(yl);2D==O;5Sa==OH;5Sb==}
}{1==(yl)}
}{1==(yl)}[cdef]
}{1==(yl)}[cdef]
}{}[acdef]
\sixheterov[]{
3s==\sixheterov[a]{
3s==\sixheterov[a]{
3s==\hexamethylenei[aE]{
6s==\hexamethylene{3==\downnobond{N}{H}}{1==(yl);2D==O;5Sa==OH;5Sb==}
}{1==(yl)}
}{1==(yl)}[cdef]
}{1==(yl)}[cdef]
}{}[acdef]