1 SL6 (z)-4-[4-[(4-chlorophenyl)methyl]-1-(cyclohexylmethyl)piperidin-4-yl]-2-oxidanyl-4-oxidanylidene-but-2-enoic acid 1.000 2 0N8 (2z)-4-[1-benzyl-4-(4-chlorobenzyl)piperidin-4-yl]-2-hydroxy-4-oxobut-2-enoic acid 1.000 3 I0N Methyl (z)-4-[4-[(4-chlorophenyl)methyl]-1-(phenylmethyl)piperidin-4-yl]-2-oxidanyl-4-oxidanylidene-but-2-enoate 0.903 4 11I Methyl (z)-4-(4-(4-chlorobenzyl)-1-(2-methylbenzyl)piperidin-4-yl)-2-hydroxy-4-oxobut-2-enoate 0.875 5 I27 Methyl (z)-4-[1-[(3-chlorophenyl)methyl]-4-[(4-chlorophenyl)methyl]piperidin-4-yl]-2-oxidanyl-4-oxidanylidene-but-2-enoate 0.875 6 IA3 Methyl (z)-4-(4-(4-chlorobenzyl)-1-(2-fluorobenzyl)piperidin-4-yl)-2-hydroxy-4-oxobut-2-enoate 0.875 7 IA5 Methyl (z)-4-(1-(3-bromobenzyl)-4-(4-chlorobenzyl)piperidin-4-yl)-2-hydroxy-4-oxobut-2-enoate 0.875 8 1I6 Methyl (z)-4-(4-(4-chlorobenzyl)-1-(3-methoxybenzyl)piperidin-4-yl)-2-hydroxy-4-oxobut-2-enoate 0.848