88968-17-6

L-Cysteine,S-(1,1-dimethylethyl)-N-[O-(1,1-dimethylethyl)-N-[O-(1,1-dimethylethyl)-N-[3-methoxy-1,3-dioxo-2-(phenylmethyl)propyl]-L-threonyl]-L-seryl]-,1,1-dimethylethyl ester