title: Synthesis of steroidal [16alpha,17-b][1,4]dioxanes.
mesh_terms: D004146:Dioxanes / Q000138:chemical synthesis*; D004147:Dioxins / Q000138:chemical synthesis*; D011283:Pregnenes / Q000138:chemical synthesis*; D013057:Spectrum Analysis
chemical_list: D004146:Dioxanes; D004147:Dioxins; D011283:Pregnenes