The 17aa does also alter the metabolites of the hirmione ´cause the 17 alkyl is still present at them.
there is N-O androgen which can be added.
One can only create different hormones,and if you look at them yo´ll see it´s the alteration on the 5th ,6th 9th C-atom I think,whicgh makes them more androgenic-not the 17aa.-One can put an alkyl on the pther atoms that might create a more androgenic hormone.