Akanni, Abraham O. Approaches to the synthesis of A-ring aromatic steroidal α-methylene lactones as potential anti-tumour agents A brief review of the biological properties and the synthesis of α-methylene lactones is presented. [Continues.] untagged;Chemical Sciences not elsewhere classified 2017-10-18
    https://repository.lboro.ac.uk/articles/thesis/Approaches_to_the_synthesis_of_A-ring_aromatic_steroidal_-methylene_lactones_as_potential_anti-tumour_agents/9400253