Not less than 95.0%
Benzyl (2S,3aS,7aS)-1-(((S)-1-ethoxy-1-oxopentan-2-yl)-L-alanyl)octahydro-1H-indole-2-carboxylate; Benzyl ester of (2S, 3aS, 7aS)-1- [2-[1- (ethoxycarbonyl) -(S)- butylamino] -(S)-propionyl]octahydroindole-2-carboxylic acid