Table 2.
Proton NMR spectroscopy of T-2 toxin 3-glucoside (Fig. 6)
| Positiona | 1H shift(s) (ppm) | Mult, splitting (Hz) |
|---|---|---|
| 1 | ||
| 2 | 3.83 | d, 4.7 |
| 3 | 4.34 | dd, 3.2, 4.7 |
| 4 | 5.85 | d, 3.2 |
| 5 | ||
| 6 | ||
| 7ab | 2.38, 2.00 | dd, 15.1, 5.8; d, 15.1 |
| 8 | 5.34 | d, 5.6 |
| 9 | ||
| 10 | 5.78 | d, 5.9 |
| 11 | 4.46 | d, 5.9 |
| 12 | ||
| 13ab | 3.05, 2.88 | d, 3.8; d, 3.8 |
| 14 | 0.76 | S |
| 15ab | 4.38, 4.13 | d, 12.4; d, 12.4 |
| 16 | 1.75 | S |
| 17 | ||
| 18ab | 2.16, 2.16 | M |
| 19 | 2.07 | M |
| 20 | 0.98 | d, 6.6 |
| 21 | 0.97 | d, 6.6 |
| 22 | ||
| 23* | 2.10 | S |
| 24 | ||
| 25* | 2.05 | S |
| 26 | 4.98 | d, 3.8 |
| 27 | 3.44 | dd, 9.8, 3.8 |
| 28 | 3.72 | t, 9.8 |
| 29 | 3.37 | t, 9.5 |
| 30 | 3.59 | ddd, 9.9, 4.8, 2.4 |
| 31ab | 3.78, 3.70 | dd, 11.9, 2.4; dd, 11.9, 4.9 |
* indicates that shifts for positions 23 and 25 may be reversed.