911114-64-2

1-Pyrrolidinecarboxylic acid,3-[[[(2-carboxy-2-methylpropoxy)carbonyl]cyclopropylamino]methyl]-4-[[[4-methoxy-3-(3-methoxypropoxy)benzoyl](1-methylethyl)amino]methyl]-,1-(1,1-dimethylethyl) ester, (3R,4S)-rel-