title: Steroidal analogues of unnatural configuration. IV. Stereoselective additions to the 5,6-bond of 4,4,14 -trimethyl-19(10 leads to 9 )-abeo-10 -pregn-5-enes and correlation with the related 19-nor-10 series.
mesh_terms: D007202:Indicators and Reagents; D008745:Methylation; D009654:Norsteroids; D010084:Oxidation-Reduction; D011278:Pregnanes; D013237:Stereoisomerism
chemical_list: D007202:Indicators and Reagents; D009654:Norsteroids; D011278:Pregnanes