1H-NMR assignments (ppm), multiplicities, and coupling constants (Hz) for oseltamivir and M3 in deuterium oxide
| Assignment | Oseltamivir | M3 | ||
|---|---|---|---|---|
| Peak | J | Peak | J | |
| ppm | Hz | ppm | Hz | |
| CH at C-2 | 6.87 (s) | 6.87 (s) | ||
| CH at C-3 | 4.36 (d) | 8.9 | 4.36 (d) | 8.6 |
| CH2 at C-8 | 4.27 (q) | 7.3 | 4.27 (q) | 7.3 |
| CH at C-4 | 4.06 (q) | 11.6 | 4.06 (t) | 10.0 |
| CH at C-10 | 3.60 (m) | 4.00 (m) | ||
| CH at C-5 | 3.59 (m) | 3.60 (m) | ||
| Cha at C-6 | 3.00 (q) | 3.00 (m) | ||
| CHbat C-6 | 2.53 (m) | 2.56 (m) | 2 | |
| Cha at C-13 | 1.59 (m) | 2.53 | ||
| Chb at C-13 | 1.57 (m) | 2.40 | ||
| CH3 at C-16 | 2.10 (s) | 2.09 (s) | ||
| CH2 at C-11 | 1.57 (m) | 1.60 (m) | ||
| CH3at C-9 | 1.31 (t) | 7.3 | 1.31 (t) | 7.3 |
| CH3 at C-12 | 0.90 (t) | 7.3 | 0.86 (t) | 7.3 |
| CH3 at C-14 | 0.87 (t) | |||
(s), singlet; (d), doublet; (t), triplet; (q), quadruplet; (m), multiplet.