Compound | R | Initial aldose | Form in crystals | Tautomeric composition (%) in DMSOd6 | ||
Form B | Form A | Form C | ||||
1a | H | L-Arabinose | C | - | 40 | 60 |
1b | CH3 | L-Rhamnose | C | - | 30 | 70 |
1c | CH2OH | D-Galactose | C | - | 35 | 65 |
1d | CH2OH | D-Glucose | C | 10 | 45 | 45 |
1e | CH2OH | D-Mannose | C | - | 20 | 80 |