No. | δC compound 2 | δC GDA | δH compound 2 | δH GDA | HMBC (H → C) | COSY | NOESY |
1 | 169.7 C | 169.1 | - | - | - | - | - |
2 | 133.2 C | 133.2 | - | - | - | - | - |
2-Me | 12.8 CH3 | 12.2 | 1.93 s | 1.91 s | 1, 2, 3, 4 | - | - |
3 | 128.7 CH | 128.4 | 6.95 d | 6.95 d | - | 4 | NH, 4, 6, 7 |
4 | 126.3 CH | 125.7 | 6.58 t | 6.56 t | 2, 6 | 3, 5 | 3, 5 |
5 | 138.7 CH | 137.8 | 5.81 br | 5.80 t | - | 4, 6 | 4, 6 |
6 | 82.3 CH | 81.6 | 4.36 d (7.6) | 4.34 d | 4, 6-OMe | 5, 7 | 3, 5, 7 |
6-OMe | 57.1 CH3 | 56.0 | 3.24 s | 3.22 s | 6 | - | - |
7 | 81.1 CH | 80.6 | 4.88 br | 4.86 br | 5, 7-OCONH2, 9, 8-Me | 6 | 3, 6, 9 |
7-OCONH2 | 156.6 C | 156.0 | - | 6.45 br | - | - | - |
8 | 129.1 C | 132.6 | - | - | - | - | - |
8-Me | 13.0 CH3 | 12.5 | 1.62 s | 1.61 s | 7, 9 | - | 10 |
9 | 132.4 CH | 131.9 | 5.50 d (8.5) | 5.51 d | 7, 8-Me | 10 | 7 |
10 | 32.6 CH | 32.1 | 2.56 | 3.61 m | - | 9, 10-Me | 8-Me, 10-Me, 11, 12 |
10-Me | 13.4 CH3 | 23.3 | 0.75 d (6.8) | 0.97 d | 9, 10, 11 | 10 | 10, 11, 12 |
11 | 72.4 CH | 71.9 | 3.09 br | 3.29 s | 10-Me | - | 10, 10-Me, 13, 14 |
11-OH | - | - | - | - | - | - | - |
12 | 80.7 CH | 80.2 | 3.09 br | 3.07 m | 12-OMe | 13 | 10, 10-Me, 13, 14 |
12-OMe | 56.5 CH3 | 56.6 | 3.23 s | 3.23 s | 12 | - | - |
13 | 31.3 CH2 | 31.0 | 1.45 br | 1.45 m | 14-Me | 12, 14 | 11, 12, 14 |
14 | 27.1 CH | 26.6 | 1.93 s | 1.91 br | 12, 16 | 13, 14-Me, 15a, 15b | 13 |
14-Me | 23.9 CH3 | 13.0 | 0.97 br | 0.76 d | 14, 15 | 14 | - |
15a | 32.2 CH2 | 31.7 | 2.43 dd (12.5, 9.9) | 2.42 m | 13, 14, 16, 17, 21 | 14, 15b | - |
15b | 31.7 | 2.18 dd (12.5, 4.8) |
| 13, 14, 16, 17, 21 | 14, 15a | - | |
16 | 128.7 C | 128.1 | - | - | - | - | - |
17 | 156.9 C | 156.4 | - | - | - | - | - |
17-OMe | 61.6 CH3 | 61.0 | 3.96 s | 3.93 s | 17 | - | - |
18 | 184.3 C | 183.6 | - | - | - | - | - |
19 | 111.3 CH | 110.9 | 7.04 s | 7.02 s | - | - | - |
20 | 140.1 C | 139.6 | - | - | - | - | - |
21 | 183.6 C | 183.1 | - | - | - | - | - |
NH | - | - | 9.18 NH, br | 9.14 NH, br | 1, 19, 21 | - | 3 |