Table 2 1H- and 13C–NMR data of flavogallonic acid dilactone and terchebulin (in CD3OD) as compared with literature [16, 17]
Position | Flavogallonic acid dilactone | Terchebulin | |||||||
|---|---|---|---|---|---|---|---|---|---|
1H (ppm) JH,H (Hz) | 1H (ppm) [16] | 13C (ppm) | 13C (ppm) [16] | 1H (ppm) JH,H (Hz) | 1H (ppm) [17] | 13C (ppm) | 13C (ppm)[17] | ||
113.0 | |||||||||
A | 125.1 | ||||||||
1 | 108.1 | 107.3 | B | 123.5 | |||||
C | 123.5 | ||||||||
D | 122.2 | ||||||||
114.0 | |||||||||
A | 6.56 (s, H) | 6.63 (s, H) | 106.8 | ||||||
2 | 135.7 | 135.2 | B | 113.0 | |||||
C | 6.79 (s, H) | 6.80 (s, H) | 108.5 | ||||||
D | 141.7 | ||||||||
138.4 | |||||||||
A | 144.5 | ||||||||
3 | 136.3 | 136.2 | B | 143.4 | |||||
C | 144.6 | ||||||||
D | 139.1 | ||||||||
150.3 | |||||||||
A | 136.1 | ||||||||
4 | 136.5 | 136.7 | B | 135.9 | |||||
C | 137.5 | ||||||||
D | 137.6 | ||||||||
113.0 | |||||||||
A | 143.4 | ||||||||
5 | 7.26 (s) | 7.11(s) | 112.8 | 111.3 | B | 7.48 (s, H) | 7.58 (s, H) | 144.5 | |
D | 144.6 | ||||||||
C | 143.6 | ||||||||
114.0 | |||||||||
A | 112.0 | ||||||||
6 | 110.1 | 109.5 | B | 6.37 (s, H) | 6.37 (s, H) | 106.4 | |||
C | 116.0 | ||||||||
D | 6.42 (s, H) | 6.39 (s, H) | 106.5 | ||||||
159.5 | 160.3 | ||||||||
7 | A | 168.9 | 169.9 | ||||||
158.9 | 157.1 | B | 169.5 | 169.1 | |||||
C | 167.0 | 167.6 | |||||||
D | 166.9 | 166.8 | |||||||
1’ | 108.1 | 107.3 | 112.0 | ||||||
2’ | 137.8 | 137.8 | 114.0 | ||||||
3’ | 139.2 | 138.9 | 140.7 | ||||||
4’ | 143.2 | 143.1 | 147.4 | ||||||
5’ | 117.5 | 117.6 | 113.0 | ||||||
6’ | 114.4 | 109.9 | 114.0 | ||||||
7’ | 160.4 | 158.9 | 158.3 | 157.9 | |||||
1” | 124.9 | 125.8 | 5.23 (d, J = 2.8 Hz) | 5.32 (d, J = 4 Hz) | 90.2 | 90.8 | |||
2” | 120.2 | 120.0 | 4.98 (dd, J = 3.5, 9.7 Hz) | 4.88 (dd, J = 3.9 Hz) | 74.2 | 75.1 | |||
3” | 144.1 | 143.1 | 5.64 (t, J = 9.6 Hz) | 5.59 (t, J = 8 Hz) | 74.1 | 74.6 | |||
4” | 145.9 | 145.8 | 4.78 (t, J = 11.0 Hz) | 68.5 | 70.1 | ||||
5” | 147.8 | 147.5 | 4.21 (t, J = 10.3 Hz) | 69.0 | 69.6 | ||||
6” | 7.50 (s) | 7.49(s) | 113.3 | 112.5 | 3.04 (t, J = 11.6 Hz) 4.48 (t, J = 8.9 Hz) | 3.10 (d, J = 12 Hz) | 63.4 | 64.4 | |
7” | 168.9 | 167.1 | - | - | - | - | |||