Katritzky Alan R, Fara Dan C, Yang Hongfang, Tämm Kaido, Tamm Tarmo, Karelson Mati
Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
Chem Rev. 2004 Jan;104(1):175-98. doi: 10.1021/cr020750m.