Standards; Isotopic Labeled Analogues; Pharmaceutical/API Drug Impurities/Metabolites; Steroids;
应用:
5β,17-Dihydroxy-6α-methylpregnane-3,20-dione-3,20-bis(ethyleneketal)-d3 is an intermediate for the synthesis of Megestrol Acetate-d3 (M208052), which is orally active progestogen; formerly used in combinations as oral contraceptive.