"imidazolines" . "2-Imidazoline" . . "2-Imidazoline" . . . . . . . "4,5-Dihydro-1H-imidazole" . . . . "2-imidazoline" . . . "Imidazoline" . "2-Imidazoline" . "4,5-Dihydro-1,3-diazole" . "1,3-Diazacyclopent-2-ene" . "imidazoline" . . .