| 90104-21-5 | 1H-Pyrrole-1,2-dicarboxylic acid, 2,3-dihydro-, 1-(1,1-dimethylethyl) ester, (S)- | C10H15NO4 |
| 90104-28-2 | 1-Pyrrolidinecarboxylic acid, 2-[[(1-carboxycyclopentyl)amino]carbonyl]-, mono(phenylmethyl) ester, (S)- | C19H24N2O5 |
| 90104-38-4 | 1-Pyrrolidinecarboxylic acid, 2-[[(1-carboxy-2,3-dihydro-1H-inden-1-yl)amino]carbonyl]-, mono(phenylmethyl) ester | C23H24N2O5 |
| 90104-48-6 | Doreptide | C17H24 N4 O3 |