Table 1.
Carbon Content of the Different Leucine and Glutamate Derivatives Testeda
| Derivative species added to the | Number of carbons | Number of silicons | |||||
|---|---|---|---|---|---|---|---|
| Amino acid core | Derivative type | Amino-N | Carboxyl group | Core | Derivative | Total | |
| Leucine | NAP | CH3CO- | -C3H7 | 6 | 5 | 11 | 0 |
| TBDMS | -Si(CH3)2C4H9 | -Si(CH3)2C4H9 | 6 | 12 | 18 | 2 | |
| mixed | -Si(CH3)2C4H9 | -C3H7 | 6 | 9 | 15 | 1 | |
| Glutamate | NAP | CH3CO- | -C3H7 | 5 | 8 | 13 | 0 |
| TBDMS | -Si(CH3)2C4H9 | -Si(CH3)2C4H9 | 5 | 18 | 23 | 3 | |
| mixed | -Si(CH3)2C4H9 | -C3H7 | 5 | 12 | 17 | 1 | |
a
NAP = N-acetyl n-propyl ester; TBDMS = t-butyldimethylsilyl ester; and mixed = N-acetyl t-butyldimethylsilyl ester.