1H and 13C NMR data of 3 (CD3OD, 500 MHz)a.
| No. | Paronychiarabicastigmane A (1) | ||||||
|---|---|---|---|---|---|---|---|
| δ H, mult. (J Hz) | δ C | δ H, mult. (J Hz) | δ C | ||||
| 1 | — | 41.0 | s | 1′′ | — | 122.7 | s |
| 2a | 2.16 d (16.8) | 49.3 | t | 2′′ | 7.58 br s | 112.4 | d |
| 2b | 2.53 d (20.0) | 3′′ | — | 147.2 | s | ||
| 3 | — | 199.8 | s | 4′′ | — | 150.9 | s |
| 4 | 5.88 d (2.0) | 125.8 | d | 5′′ | 6.84 d (8.1) | 114.3 | d |
| 5 | — | 165.9 | s | 6′′ | 7.55 d (8.3) | 123.8 | d |
| 6 | — | 78.6 | s | 3′′-OMe | 3.91 s | 55.0 | q |
| 7 | 5.87 d (6.6) | 130.1 | d | ||||
| 8 | 5.87 d (6.6) | 133.9 | d | ||||
| 9 | 4.43 m | 75.9 | d | ||||
| 10 | 1.31 d (6.4) | 19.8 | q | ||||
| 11 | 1.93 d (1.2) | 18.2 | q | ||||
| 12 | 1.05 s | 22.0 | q | ||||
| 13 | 1.05 s | 22.3 | q | ||||
| 1′ | 4.36 d (7.8) | 101.3 | d | ||||
| 2′ | 3.18 m | 73.8 | d | ||||
| 3′ | 3.25 m | 76.6 | d | ||||
| 4′ | 3.28 m | 70.2 | d | ||||
| 5′ | 3.35 m | 76.7 | d | ||||
| 6′ | 3.67 m | ||||||
| 3.87 d (1.8) | 61.4 | t | |||||
| 7′ | — | 167.0 | s | ||||
a
s: quaternary, d: methine, t: methylene, q: methyl.