tert-butyl (S)-2-((S)-2-((2S,4S)-4-allyl-1-((S)-2-((S)-2-((tert-butoxycarbonyl)(methyl)amino)propanamido)-3,3-dimethylbutanoyl)pyrrolidine-2-carboxamido)-3-(naphthalen-2-yl)propanamido)-3-(4-(prop-2-yn-1-yloxy)phenyl)propanoate