19-hydroxy-androst-4-ene-3,17-dione CAS 510-64-5

Penggunaan: Menengah dari Norethisterone dan EthinyleStradiol. Production method using acetic acid pregnenolone (5,16-pregnenol-3) β- Alcohol-20-one 3-acetate) as raw material, through hydroxylamine oximation of hydrochloric acid, rearrangement (dehydroepiandrosterone of acetic acid obtained from Chemicalbook), hydrolysis ( HCl), penambahan, epoksidasi, hidrolisis (penghapusan 3-asetil), Oksidasi (3-hidroksi), eliminasi (penghapusan HCl), reduksi, pembukaan cincin, dll.