Table XX.
13C NMR Data of Hemanthamine-Type Alkaloids
| Alkaloid | 42 | 43 | 44 | 45 | 47 | 48 | 49 | 50 | 53 | 54 | 55 | 56 | 57 | 59 | 61 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C-1 | 132.1 | 133.2 | 132.3 | 130.3 | 128.2 | 132.4 | 132.0 | 132.4 | 128.0 | 127.5 | 126.7 | 126.3 | 123.6 | 25.4 | 131.4 |
| C-2 | 127.4 | 127.6 | 128.6 | 127.6 | 127.3 | 125.6 | 125.9 | 125.2 | 127.2 | 129.5 | 132.3 | 132.8 | 136.0 | 26.4 | 129.1 |
| C-3 | 64.0 | 64.6 | 64.5 | 63.3 | 70.7 | 72.4 | 72.4 | 72.4 | 73.0 | 72.4 | 72.5 | 72.5 | 76.0 | 69.9 | 72.5 |
| C-4 | 32.7 | 32.8 | 33.5 | 31.6 | 25.6 | 28.7 | 28.1 | 28.5 | 29.5 | 28.2 | 27.8 | 27.6 | 30.1 | 30.3 | 26.7 |
| C-4a | 62.3 | 64.0 | 64.1 | 62.8 | 64.8 | 62.2 | 56.3 | 57.1 | 62.7 | 62.8 | 61.6 | 56.2 | 66.1 | 66.0 | 53.4 |
| C-6 | 62.8 | 63.7 | 62.6 | 60.9 | 57.1 | 87.0 | 88.9 | 96.4 | 63.3 | 61.0 | 85.8 | 88.4 | 63.4 | 59.1 | 57.6 |
| C-6a | 126.3 | 126.3 | 125.8 | 121.1 | 116.5 | 127.4 | 126.5 | 125.5 | 126.9 | 126.2 | 129.2 | 127.8 | 126.5 | 118.4 | 131.8 |
| C-7 | 106.9 | 107.9 | 111.9 | 109.8 | 110.0 | 111.0 | 112.5 | 112.4 | 106.9 | 106.6 | 108.2 | 109.5 | 106.9 | 109.0 | 105.7 |
| C-8 | 145.6 | 147.9 | 149.2 | 144.8 | 148.9 | 147.8 | 147.8 | 147.3 | 146.5 | 146.5 | 146.5 | 146.4 | 146.2 | 146.3 | 146.2 |
| C-9 | 146.0 | 148.4 | 149.1 | 146.0 | 149.0 | 148.5 | 148.7 | 148.2 | 147.0 | 146.5 | 147.4 | 147.7 | 146.5 | 145.4 | 145.5 |
| C-10 | 102.7 | 104.4 | 107.8 | 109.2 | 106.2 | 105.4 | 105.4 | 105.0 | 103.3 | 103.4 | 102.7 | 102.9 | 103.2 | 109.6 | 105.4 |
| C-10a | 138.3 | 136.9 | 138.7 | 136.5 | 138.0 | 136.4 | 137.4 | 138.1 | 135.0 | 134.2 | 134.7 | 135.8 | 135.3 | 137.1 | 129.1 |
| C-10b | 44.2 | 51.4 | 45.4 | 44.0 | 44.9 | 44.7 | 44.1 | 43.7 | 50.0 | 49.2 | 50.7 | 50.3 | 50.3 | 42.4 | 36.9 |
| C-11 | 44.2 | 80.8 | 45.0 | 42.8 | 40.6 | 42.3 | 40.9 | 41.1 | 80.0 | 80.2 | 79.2 | 78.3 | 80.0 | 35.5 | 75.3 |
| C-12 | 53.5 | 61.5 | 54.0 | 52.8 | 52.3 | 42.0 | 47.9 | 48.4 | 61.5 | 60.4 | 52.0 | 57.8 | 61.2 | 50.8 | 81.0 |
| OCH2O | 100.6 | 102.4 | — | — | — | — | — | — | 101.0 | 100.8 | 101.0 | 101.0 | 100.9 | — | 100.8 |
| OMe | — | — | 56.8 | 55.8 | 56.1 | 56.6 | 56.6 | 56.8 | 56.0 | 56.5 | 56.8 | 56.5 | 55.8 | 55.8 | 56.5 |
| OMe | — | — | 56.5 | — | 56.1 | 56.6 | 56.6 | 56.0 | — | — | — | — | — | — | — |
| OMe | — | — | — | — | 56.1 | 56.1 | 56.0 | 55.8 | — | — | — | — | — | — | — |
| OMe | — | — | — | — | — | — | — | 55.7 | — | — | — | — | — | — | — |
| OOCMe | — | — | — | — | — | — | — | — | — | 170.0 | — | — | — | 170.5 | — |
| OOCMe | — | — | — | — | — | — | — | — | — | 21.2 | — | — | — | 21.0 | — |
| CH2OOCMe | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 64.6 |
| CH2OOCMe | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 170.8 |
| CH2OOCMe | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20.9 |
| Solvent | d | c | c | b | d | d | d | d | d | d | d | d | d | d | d |
| MHz | 20 | 67.5 | 75 | 50 | 50 | 50 | 50 | 50 | 20 | 50 | 125 | 125 | 75 | 50 | 50 |
| Reference | (330) | (376) | (336) | (108) | (137) | (135) | (135) | (137) | (330) | (74) | (73) | (73) | (298) | (140) | (74) |
Solvent a: DMSO-d6, b: CDCl3-CD3OD, c: CD3OD, d: CDCl3.