Synonyms: L-Ornithine,N5-[bis[[(1,1-dimethylethoxy)carbonyl]amino]methylene]-N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-;11-Oxa-2,7,9-triazatridec-7-enoic acid,3-carboxy-8-[[(1,1-dimethylethoxy)carbonyl]amino]-12,12-dimethyl-10-oxo-,1-(9H-fluoren-9-ylmethyl) ester, (S)-