Synthesis of some multifunctional derivatives glycoluril which are convenient synthons for the preparative production of new azoheterocycles - Salkeyeva, L.; Shibayeva, A.; Bakibaev, A.; Taishibekova, Y.; Minaeva, Y.; Smakova, L.; Hasenova, G. (Chemical Bulletin of Kazakh National University, 2013)