Proton and carbon NMR chemical shift assignments for magnolol and its metabolite
| Position | Magnolol | Metabolite | ||
|---|---|---|---|---|
| δ1H | δ13C | δ1H | δ13C | |
| 1, 1′ | 128.4, 125.6 | |||
| 2, 2′ | 152.7, 152.7 | |||
| 5, 5′ | 131.5, 132.4 | |||
| 3, 3′ | 6.79–6.93 (6H, m) | 116.1 | 6.81–7.09 (6H, m) | 114.9, 116.4 |
| 4, 4′ | 128.4 | 128.4, 128.5 | ||
| 6, 6′ | 130.1 | 130.5, 132.4 | ||
| 7, 7′ | 3.26–3.34 (4H, m) | 39.8 | 3.26–3.33 (4H, m) | 39.5, 39.7 |
| 8, 8′ | 5.90–5.94 (2H, m) | 138.8 | 5.89–5.98 (2H, m) | 138.4, 138.8 |
| 9, 9′ | 4.99–5.08 (4H, m) | 115.7 | 4.98–5.06 (4H, m) | 115.7, 116.0 |
| G1 | 5.10 (1H, d, J = 8.0) | 100.6 | ||
| G2 | 3.28 (1H, m) | 70.2 | ||
| G3 | 3.30 (1H, m) | 75.9 | ||
| G4 | 3.30 (1H, m) | 71.7 | ||
| G5 | 4.01 (1H, d, J = 8.0) | 75.9 | ||
| G6 | 170.6 | |||