Dauvergne, Jérôme, Happe, Alan M, Jadhav, Vasudev, Justice, David, Matos, Marie-Christine, McCormack, Peter J, Pitts, Michael R, Roberts, Stanley M, Singh, Sanjay K et al (2004) Synthesis of 4-azacyclopent-2-enones and 5,5-dialkyl-4-azacyclopent-2-enones. Tetrahedron, 60 (11). pp. 2559-2567. ISSN 00404020