title: A-nor steroids. 1. The stereochemistry of a 2-carbomethoxy-A-nor-cholestan-3-one obtained via the Dieckmann condensation.
mesh_terms: D002776:Cholestanes / Q000138:chemical synthesis*; D002778:Cholestanones / Q000138:chemical synthesis*; D008722:Methods; D013237:Stereoisomerism
chemical_list: D002776:Cholestanes; D002778:Cholestanones; C036444:2-carbomethoxy-A-nor-5 alpha-cholestan-3-one