Table 1 1H-NMR (δH, J) and 13C-NMR (δC) spectral data obtained in this study for lycorine (1) in comparison to those of a previous report (δHa, Ja, δCa)
Position | δH, mult. (J) | δHa, mult. (Ja) | δC | δCa |
|---|---|---|---|---|
1 | 4.27 brs | 4.25 m | 70.2 | 70.3 |
2 | 3.97 brs | 3.96 m | 71.7 | 71.8 |
3 | 5.37 brs | 5.35 brs | 118.5 | 118.6 |
4 | - | - | 141.7 | 141.9 |
4a | 2.60 brd (10.3) | 2.59 d (10.4) | 60.8 | 60.8 |
6α | 3.32 d (14.2) | 3.31 d (14.0) | 85.7 | 85.6 |
6β | 4.01 d (14.2) | 4.00 d (14.0) | ||
6a | - | - | 129.8 | 129.9 |
7 | 6.68 s | 6.66 s | 107.0 | 107.2 |
8 | - | - | 145.2 | 145.4 |
9 | - | - | 145.7 | 145.8 |
10 | 6.80 s | 6.79 s | 105.1 | 105.2 |
10a | - | - | 129.6 | 129.7 |
10b | 2.41 m | 2.42 m | 40.2 | 40.2 |
11 | 2.45–2.54 m | 2.45–2.53 m | 28.1 | 28.2 |
12α | 2.20 q (8.7) | 2.19 m | 53.3 | 53.4 |
12β | 3.33 ddd (13.0, 10.1, 4.4) | 3.31 ddd (13.0, 10.5, 4.5) | ||
-OCH2O- | 5.94–5.95 m | 5.90–5.96 m | 100.6 | 100.7 |
1-OH | 4.77 d (4.1) | 4.79 m | ||
2-OH | 4.87 d (6.2) | 4.91 m |