Table 1.
Selected 13C- and 1H data (300 MHz in CDCl3) of the most abundant sterols found in Prasiola crispan-hexane extract.
| C/H | Campesterol | β-sitosterol | Stigmasterol | |||
|---|---|---|---|---|---|---|
| C3 | 71.82 | 3.66 (1H, m) | 71.71 | 3.66 (1H, m) | 71.29 | 3.66 (1H, m) |
| C6 | 122.45 | 5.33 (1H;d;1.2) | 119.80 | 5.35 (1H, s) | 121.60 | 5.37 (1H;d; 5.33) |
| C18 | 11.96 | 0.68 (3H, s) | 11.94 | 0.68 (3H, s) | 11.21 | 0.70 (1H, s) |
| C19 | 19.21 | 1.00 (3H, s) | 18.28 | 1.00 (3H, s) | 20.80 | 1.01 (3H, s) |
| C21 | 18.61 | 0.90 (3H;d;6.5) | 18.83 | 0.92 (3H;d; 1.5) | 21.06 | 1.02 (3H, s) |
| C22 | 138.13 | 5.16 (1H;dd;15.0; 8.09) | ||||
| C23 | 129.21 | 5.16 (1H;dd;14.4; 8.09) | ||||
| C26 | 19.61 | 0.85 (3H;d;2.2) | 19.48 | 0.80 (3H;d; 3.7) | 20.40 | 0.80 (3H;d; 3.7) |
| C27 | 18.56 | 0.79 (3H;d;3.6) | 20.40 | 0.84 (3H;d;2.4) | 19.48 | 0.84 (3H;d; 2.4) |
| C28 | 14.00 | 0.77 (3H;d;3.7) | ||||
| C29 | 12.30 | 0.85 (3H;d; 2.2) | 12.20 | 0.80 (3H;d;3.7) |