title: Structures of three oxygenated 24-methyl-steroids (nic-3, -7, and -11) from the insect repellant plant Nicandra physaloides (Solanaceae): x-ray analysis of Nic-3 acetate and nic-11 ethyl ether.
mesh_terms: D004852:Epoxy Compounds / Q000032:analysis; D007302:Insect Repellents / Q000032:analysis*; D010084:Oxidation-Reduction; D010840:Phytosterols / Q000032:analysis; D010944:Plants / Q000032:analysis*
chemical_list: D004852:Epoxy Compounds; D007302:Insect Repellents; D010840:Phytosterols