| | koprosteine |
| | procysteine |
| oxo | thiazolidine carboxylate, L- |
| (-)-2-oxo-4- | thiazolidine carboxylic acid |
| L-2-oxo | thiazolidine-4-carboxylate |
| laevo-2-oxo | thiazolidine-4-carboxylate |
| 2-oxo | thiazolidine-4-carboxylate, L- |
| (4R)-2-oxo-1,3- | thiazolidine-4-carboxylic acid |
| 2-oxo | thiazolidine-4-carboxylic acid |
| (-)-2-oxo-4- | thiazolidinecarboxylic acid |
| (R)-2-oxo-4- | thiazolidinecarboxylic acid |
| L-2-oxo-4- | thiazolidinecarboxylic acid |
| 4- | thiazolidinecarboxylic acid, 2-oxo-, (4R)- |
| 4- | thiazolidinecarboxylic acid, 2-oxo-, (R)- |
| 4- | thiazolidinecarboxylic acid, 2-oxo-, L- |