Protons | Chemical Shifts | COSY Interactions | |
---|---|---|---|
(ppm) | |||
H-2 | 4.65 | 3.22 | |
H-3 | 3.21 | 4.65 | |
H-5 | 7.71 (d, d, d = 0.5, 1.5, 7.8) | 7.75 | |
H-6 | 7.75 (d, d, d = 1.4, 7.3, 7.8) | 7.71, 7.57 | |
H-7 | 7.57 (d, d, d = 1.4, 7.3, 7.5) | 7.90, 7.74 | |
H-8 | 7.90 (d, d, d = 0.5, 1.4, 7.6) | 7.57 |
13C | Chemical Shifts | HMBC | HMQC Interactions |
---|---|---|---|
(ppm) | |||
C-2 | 67.63 | 3.21 | 4.65 |
C-3 | 23.22 | 4.65 | 3.21 |
C-4a | 111.33 | 3.21 | |
C-4b | 132.21 | 7.91, 7.75 | |
C-5 | 122.74 | 7.57 | 7.71 |
C-6 | 135.11 | 7.91, 7.71, 7.58 | 7.75 |
C-7 | 130.39 | 7.71 | 7.57 |
C-8 | 128.08 | 7.75, 7.56 | 7.90 |
C-8a | 128.82 | 7.71, 7.57 | |
C-9 | 177.34 | 7.91 | |
C-10 | 175.54 | ||
C-10a | 157.93 | 7.71, 4.65 |