7-(((2S)-2-(acetylthio)-1-oxo-3-methylpropyl)amino)-1,2,3,4,6,7,8,12b-octahydro-6-oxo-, (4S,7S,12bR)-pyrido(2,1-a)(2)benzazepin-4-carboxy-acid
7-(((2s)-2-(acetylthio)-1-oxo-3-methylpropyl)amino)-1,2,3,4,6,7,8,12b-octahydro-6-oxo-, (4s,7s,12br)-pyrido(2,1-a)(2)benzazepin-4-carboxy-acid