1 52A (2r,4r)-4-aminopyrrolidine-2,4-dicarboxylic acid 1.000 2 C5A (1s,3s)-1-aminocyclopentane-1,3-dicarboxylic acid 0.846 3 C5B (1s,3r)-1-aminocyclopentane-1,3-dicarboxylic acid 0.846 4 40F (1s,2s,5r,6s)-2-aminobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 0.786 5 JEG Trans-1-aminocyclobutane-1,3-dicarboxylic acid 0.769 6 JKH 4-amino-proline 0.750 7 MP8 (4r)-4-methyl-L-proline 0.750 8 8G0 Benzene-1,3-dicarboxylic acid 0.714 9 MYO 4-azanyl-1~{H}-pyrazole-3,5-dicarboxylic acid 0.714 10 PD2 Pyridine-2,4-dicarboxylic acid 0.714 11 R3K Pyridine-2,5-dicarboxylic acid 0.714