the concentrations of dehydroepiandrosterone ( dhea ) and 17alpha-hydroxypregnenolone ( delta5 intermediates ) , androstenedione and testosterone were higher in non-ovulatory follicles , whereas large follicles usually contained high levels of progesterone , 17alpha-hydroxyprogesterone , pregnenolone and oestradiol-17beta .
C0376260
17alpha-hydroxypregnenolone
C0373704
pregnenolone