(S)-((S)-2-amino-3-methylbutyrylamino)cyclohexylacetic acid methyl ester

(1R,2S)-1-{[trans-2-{(S)-1-[((S)-cyclohexyl(methoxycarbonyl)methyl)carbamoyl]-2-methylpropylcarbamoyl}-4-(7-methoxy-2-phenylquinolin-4-yloxy)cyclopent-2-enecarbonyl]amino}-2-vinylcyclopropanecarboxylic acid tert-butyl ester