title: The base-catalysed epoxidation of androst-4-en-6-ones.
mesh_terms: D000736:Androstenes; D002384:Catalysis; D004988:Ethers, Cyclic; D007664:Ketosteroids; D008722:Methods
chemical_list: D000736:Androstenes; D004988:Ethers, Cyclic; D007664:Ketosteroids