P. K. Challa, M. Aruna, J. A, and G. Dayakar, “Efficient synthesis of 3-aryl-1-(4-{[3-(3-methoxyphenyl)- [1,8]naphthyridin- 2- yl]amino}phenyl)-2-propen-1-ones”, IJTIMES, vol. 4, no. 7, pp. 1065–1070, Jul. 2018.