[1]
G. G. Yakovenko and M. V. Vovk, “Convenient approaches to the synthesis of 6-amino- and 6-oxoimidazo[4,5-b]pyrazolo[3,4-e]pyridines”, J. Org. Pharm. Chem., vol. 19, no. 1(73), pp. 10–15, Mar. 2021.