“…Recently we have designed one more effective route to reach this fascinating region of macroheterocyclic compounds, namely, the effective method of synthesis of azacrown ethers containing piperidine (Levov et al, 2006(Levov et al, , 2008Anh et al, 2008;Anh, Hieu, Soldatenkov, Kolyadina & Khrustalev, 2012a;Anh, Hieu, Soldatenkov, Soldatova & Khrustalev, 2012), perhydropyrimidine (Hieu et al, 2011), perhydrotriazine (Khieu et al, 2011) and bispidine (Komarova et al, 2008;Sokol et al, 2011;Anh, Hieu, Soldatenkov, Kolyadina & Khrustalev, 2012b) subunits.…”