1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 3-methyl ester, (2R,3R)-

1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 2-methyl ester, (2R,3S)- 1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 3-methyl ester, cis- 1,2,4-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 4-methyl ester 1,2,5-Piperidinetricarboxylic acid, 1-(9H-fluoren-9-ylmethyl) 2-methyl ester 1,2,4-Pyrrolidinetricarboxylic acid, 1-(1,1-dimethylethyl) 2-methyl ester, (2R,4R)-rel-

1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-2-(methoxycarbonyl)piperidine-4-carboxylic acid 1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 3-methyl ester 1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 3-methyl ester, (2S,3R)- 1,2,4-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 4-methyl ester, (2R,4R)- 1,2,4-Pyrrolidinetricarboxylic acid, 4-(1,1-dimethylethyl) 1-(9H-fluoren-9-ylmethyl) ester, (2S,4R)-

1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-(methoxycarbonyl)piperidine-2-carboxylic acid 1,2,3-Piperidinetricarboxylic acid, 1-(9H-fluoren-9-ylmethyl) 2-methyl ester 1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 2-methyl ester 1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 3-methyl ester, (2R,3R)- 3-Azabicyclo[3.1.0]hexane-2,3,6-tricarboxylic acid, 3-(9H-fluoren-9-ylmethyl) 6-methyl ester, (1R,2S,5S,6R)-

1,2,3-Piperidinetricarboxylic acid, 1-(9H-fluoren-9-ylmethyl) 3-methyl ester 1,2,4-Pyrrolidinetricarboxylic acid, 2-amino-, 4-(1,1-dimethylethyl) 1-(9H-fluoren-9-ylmethyl) ester, (2R,4S)- 1,2,3-Piperidinetricarboxylic acid, 1-(1,1-dimethylethyl) 3-methyl ester, (2R,3S)-