| 1 | 2-hydroxy-3-isopropylsuccinic acid |
| 2 | 3-carboxy-2-hydroxy-4-methylpentanoic acid |
| 3 | 2-hydroxy-3-(propan-2-yl)butanedioic acid |
| 4 | (2r,3s)-2-hydroxy-3-(propan-2-yl)butanedioic acid |
| 5 | (2r,3s)-2-hydroxy-3-isopropylsuccinic acid |
| 6 | 2-d-threo-hydroxy-3-carboxyisocaproic acid |
| 7 | (2r,3s)-3-carboxy-2-hydroxy-4-methylpentanoic acid |
| 8 | 3-isopropylmalate |
| 9 | 2-d-threo-hydroxy-3-carboxy-isocaproate |
| 10 | 3-carboxy-2-hydroxy-4-methylpentanoate |