title: A new spirocyclobutanone synthesis in the steroid series.
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D013057:Spectrum Analysis; D013141:Spiro Compounds / Q000138:chemical synthesis*; D013256:Steroids / Q000138:chemical synthesis*
chemical_list: D013141:Spiro Compounds; D013256:Steroids