Synonyms: 2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine; DBU; 1,8-diazabicyclo(5.4.0)undec-7-ene; 1,8-Diazabicyclo(5,4,0)undec-7-ene; Diazabicycloundecene; Dicyclo[5,4,0]-1,8-Diazole-7-Nonylene; 1,5-Diaza(5,4,0)undec-5-ene; 1,5-Diazabicyclo[5.4.0]-5-undecene; 2,3,4,6,7,8,9,10-Octahydropyrimido(1,2-alpha)azepine; 2-a]azepine,2,3,4,6,7,8,9,10-octahydro-pyrimido[; 2-a]azepine,2,3,4,6,7,8,9,10-octahydro-Pyrimido[1; Pyrimido[1,2-a]azepine, 2,3,4,6,7,8,9,10-octahydro-; Pyrimido[1,2-a]azepine,2,3,4,6,7,8,9,10-octahydro-; 1,8-diazabicyclo (5.4.0) undec-7-ene