1 7NW 2-methyl-1,3-thiazole-4-carboxylic acid 1.000 2 2MT (4r)-2,2-dimethyl-1,3-thiazolidine-4-carboxylic acid 0.900 3 PRS Thioproline 0.889 4 5XB (2~{R},4~{R})-1,3-thiazolidine-2,4-dicarboxylic acid 0.818 5 41K (2r,4r)-2-methyl-1,3-thiazolidine-2,4-dicarboxylic acid 0.750 6 4CS (4s)-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acid 0.727 7 A1A0X 4-amino-5-methylthiophene-3-carboxylic acid 0.727 8 A1EFO 6-methylpyridine-2-carboxylic acid 0.727 9 F6N 2-(aminomethyl)-1,3-oxazole-4-carboxylic acid 0.727 10 H5M Trans-3-hydroxy-5-methylproline 0.727 11 POM Cis-5-methyl-4-oxoproline 0.727 12 2PC 3,4-dihydro-2h-pyrrolium-5-carboxylate 0.700 13 8LJ (2s)-2,3-dihydro-1h-pyrrole-2-carboxylic acid 0.700 14 A1AFC 2,4,5-trimethyl-1,3-thiazole 0.700 15 A1CAB (2s)-3,4-dihydro-2h-pyrrole-2-carboxylic acid 0.700 16 DPR D-proline 0.700 17 OHG (2-methyl-1h-imidazol-4-yl)methanol 0.700 18 PRO Proline 0.700 19 PYC Pyrrole-2-carboxylate 0.700 20 TMT 2,3,4-trimethyl-1,3-thiazole 0.700 21 TX0 Thiophene-3-carboxylic acid 0.700 22 XH7 (3r)-thiolane-3-carboxylic acid 0.700