[1]Gracheva,I.N.;Prokof'ev,E.P.;Kovel'man,I.R.;Tochilkin,A.I.[ChemistryofHeterocyclicCompounds,1985,vol.21,#8,p.887-891][KhimiyaGeterotsiklicheskikhSoedinenii,1985,#8,p.1065-1069]
[1]Gracheva,I.N.;Gridneva,L.I.;Tochilkin,A.I.;Gorkin,V.Z.[PharmaceuticalChemistryJournal,1988,vol.22,#11,p.844-847][Khimiko-FarmatsevticheskiiZhurnal,1988,vol.22,#11,p.1336-1339]
[1]Gracheva,I.N.;Prokof'ev,E.P.;Kovel'man,I.R.;Tochilkin,A.I.[ChemistryofHeterocyclicCompounds,1985,vol.21,#8,p.887-891][KhimiyaGeterotsiklicheskikhSoedinenii,1985,#8,p.1065-1069]
[1]Gracheva,I.N.;Prokof'ev,E.P.;Kovel'man,I.R.;Tochilkin,A.I.[ChemistryofHeterocyclicCompounds,1985,vol.21,#8,p.887-891][KhimiyaGeterotsiklicheskikhSoedinenii,1985,#8,p.1065-1069]
[1]Gracheva,I.N.;Prokof'ev,E.P.;Kovel'man,I.R.;Tochilkin,A.I.[ChemistryofHeterocyclicCompounds,1985,vol.21,#8,p.887-891][KhimiyaGeterotsiklicheskikhSoedinenii,1985,#8,p.1065-1069]
