<unk> , also known as 16α,17α-dihydroxyprogesterone or as 16α,17α-dihydroxypregn-4-ene-3,20-dione, is a synthetic pregnane steroid and a derivative of progesterone and 17α-hydroxyprogesterone. Closely related analogues of<unk>  include 16α-hydroxyprogesterone,<unk>  acetonide, and<unk>  acetophenide.
Algestone
Promegestone
Gestodene
Nomegestrol acetate
Dydrogesterone
Telapristone
Mestanolone
Hydroxyprogesterone acetate