Table 2. 1H-NMR (400 MHz) and 13C-NMR (100 MHz) spectral data of isoasarone 2 in CDCl3.
| Position | 1H | 13C | ||
|---|---|---|---|---|
| δH (multiplicity, J in Hz) | δC | |||
| Experimental(CDCl3) | Reference [24](CDCl3) | Experimental(CDCl3) | Reference [24](CDCl3) | |
| 1 | - | - | 120.2 | 120.3 |
| 2 | 6.70 (s) | 6.70 (s) | 114.1 | 114.3 |
| 3 | - | - | 143.2 | 143.3 |
| 4 | - | - | 148.1 | 148.2 |
| 5 | 6.54 (s) | 6.54 (s) | 98.2 | 98.4 |
| 6 | - | - | 151.5 | 151.6 |
| 1’ | 3.30 (d, 6.4) | 3.30 (dm, 6.4) | 33.8 | 33.8 |
| 2’ | 5.92–6.02 (m) | 5.97 (m) | 137.5 | 137.5 |
| 3’ | 5.02–5.07 (m) | 5.04 (m) | 115.4 | 115.4 |
| 3-OMe | 3.84 (s) | 3.83 (s) | 56.8 | 56.8 |
| 4-OMe | 3.89 (s) | 3.88 (s) | 56.4 | 56.5 |
| 6-OMe | 3.81 (s) | 3.81 (s) | 56.8 | 56.8 |