109214-55-3 1H-1-Benzazepine-1-acetic acid, 3-((5-amino-1-carboxypentyl)amino)-2,3,4,5-tetrahydro-2-oxo-, (S-(R*,R*)) CGS 16617 Libenzapril Libenzapril [USAN:INN] N-((3S)-1-(Carboxymethyl)-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepin-3-yl)-L-lysine