title: An A-nor-3-thia-5beta-pregnane.
mesh_terms: D002942:Circular Dichroism; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D009650:Norpregnanes / Q000138:chemical synthesis*; D013237:Stereoisomerism; D013260:Steroids, Heterocyclic / Q000138:chemical synthesis*
chemical_list: D009650:Norpregnanes; D013260:Steroids, Heterocyclic