the ring a reduced metabolites of deoxycorticosterone and progesterone , 3 alpha , 5 alpha-tetrahydrodeoxycorticosterone ( thdoc ) and 3 alpha-hydroxy-5 alpha-dihydroprogesterone ( 3 alpha-oh-dhp ) have been shown to be potent barbiturate-like ligands of the benzodiazepine receptor complex .
C0033308
progesterone
C0012311
dihydroprogesterone