(1R,2R)-4-hydroxycyclopentane-1,2-dicarboxylic acid

7-hydroxy-3-oxabicyclo[3.3.0]octan-2-one

cis-tetrahydro-1H-cyclopenta[c]furan-1,3,5-trione

(1R,2R,4R)-2-(methoxycarbonyl)-4-[(4-nitrobenzoyl)oxy]cyclopentanecarboxylic acid

methyl (1R,2R,4R)-2-[[(1R,2S)-1-(ethoxycarbonyl)-2-vinylcyclopropyl]carbamoyl]-4-[[2-(4-isopropyl-1,3-thiazol-2-yl)-7-methoxy-8-methyl-4-quinolinyl]oxy]cyclopentanecarboxylate