title: Confirmation of 18-norsteroidal structure of "fukujusonorones." sensitivity of CMR to configurational changes.
mesh_terms: D002247:Carbon Isotopes; D005583:Fourier Analysis; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009654:Norsteroids; D013056:Spectrophotometry, Ultraviolet; D013237:Stereoisomerism
chemical_list: D002247:Carbon Isotopes; D009654:Norsteroids