CHARY MARINGANTI, T. et al. 2010. Synthesis of 3-Chloro-1-(2-chloro-1,8-naphthyridin-7-yl)-4- arylazetidin-2-ones and 3-(2-Chloro-1,8-naphthyridine-7-yl)-2- arylthiazolidin-4-ones From 2-Amino-7-chloro-1,8-naphthyridine. Asian Journal of Chemistry. 21, 5 (Mar. 2010), 3547–3552.