Table 4 Spectral data of 1H, 13C of compound 3
C Position | Compound 3 | Heteronuclear multiple bond correlation | |
|---|---|---|---|
1HNMR (δ = ppm, J = Hz) | 13CNMR (ppm) (δ = ppm, J = Hz) | ||
1 | – | 161.8 | |
2 | – | 107.6 | |
3 | – | 163.8 | |
4 | 6,36 (s) | 93.3 | C3, C-4a, C-4b |
5 | 6,84 (s) | 102.6 | C-8a, C-8b, C7 |
6 | – | 150.8 | |
7 | – | 143.8 | |
8 | 7,36 (s) | 107.9 | C-O, C-8a, C-8b, C-7 |
9 | – | 179.1 | |
4a | – | 156.2 | |
4b | – | 101.3 | |
8a | – | 111.6 | |
8b | – | 154.2 | |
CO | – | 179.0 | |
1′ | 4,58 (d, J = 9,75) | 73.0 | C-1, C-3, C-2, C6’ |
2′ | 4,05 (t) | 70.2 | C-1’, C-3’ |
3′ | 3,20(m) | 79.0 | C-5′, C-4’ |
4′ | 3,19(m) | 70.6 | C-5’ |
5′ | 3,16 (m) | 81.6 | C4’, C-6’ |
6′ | 3,67 (d, J = 11,1) | 61.5 | C5’ |