(4R)-4-(4-(4-chlorobenzyl)-1-oxophthalazin-2(1H)-yl)-1-methylazepane 1-oxide; (R)-4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1-methyl-1-oxido-1H-azepin-4-yl)-1(2H)-phthalazinone; (-)-Azelastine N-Oxide
(4R)-4-(4-(4-chlorobenzyl)-1-oxophthalazin-2(1H)-yl)-1-methylazepane 1-oxide; (R)-4-[(4-Chlorophenyl)methyl]-2-(hexahydro-1-methyl-1-oxido-1H-azepin-4-yl)-1(2H)-phthalazinone; (-)-Azelastine N-Oxide