((3)H)(S)-2-((S)-3-acetylamino-3-sec-butyl-2-oxo-pyrrolidin-1-yl)-N-((1S,2R)-1-benzyl-2-hydroxy-3-(3-methoxy-benzylamino)-propyl)-4-phenyl-butyramide
((3)h)(s)-2-((s)-3-acetylamino-3-sec-butyl-2-oxo-pyrrolidin-1-yl)-n-((1s,2r)-1-benzyl-2-hydroxy-3-(3-methoxy-benzylamino)-propyl)-4-phenyl-butyramide