(S)-2-{[(1R,2R,4S)-2-{(S)-1-[((S)-cyclohexyl-methoxycarbonyl-methyl)-carbamoyl]-2-methyl-propylcarbamoyl}-4-(7-methoxy-2-phenyl-quinolin-4-yloxy)-cyclopentanecarbonyl]-amino}-pentanoic acid tert-butyl ester

(S)-2-{[(1R,2R,4S)-2-{(S)-1-[((S)-cyclohexyl-methylcarbamoyl-methyl)-carbamoyl]-2,2-dimethyl-propylcarbamoyl}-4-(7-methoxy-2-phenyl-quinolin-4-yloxy)-cyclopentanecarbonyl]-amino}-pentanoic acid tert-butyl ester

(1R,2S)-1-{[(1R,2R,4S)-2-{(S)-1-[((S)-cyclohexyl-methylcarbamoyl-methyl)-carbamoyl]-2,2-dimethyl-propylcarbamoyl}-4-(7-methoxy-2-phenyl-quinolin-4-yloxy)-cyclopenteanecarbonyl]-amino}-2-vinyl-cyclopropanecarboxylic acid ethyl ester

(1R,2R,4S)-1-benzyl 2-methyl 4-hydroxycyclopentane-1,2-dicarboxylate

(1R,2R,4R)-4-hydroxy-2-(methoxycarbonyl)cyclopentanecarboxylic acid