839720-44-4

1-Piperidinecarboxylic acid,4-[6,11-bis[(1,1-dimethylethoxy)carbonyl]-18,18-dimethyl-1,16-dioxo-17-oxa-2,6,11,15-tetraazanonadec-1-yl]-4-phenyl-, 9H-fluoren-9-ylmethylester