Venkateswarlu, P. and Dubey, P. 2017. Synthesis of 3-Substituted Pyrido[1,2-a]pyrimidinethylidenehydrazinylthiozole Derivatives from Pyridine-2-amines. Asian Journal of Chemistry. 29, 11 (Sep. 2017), 2387–2390. DOI:https://doi.org/10.14233/ajchem.2017.20678.