Skip to main content

Table 2 1H- and 13C–NMR data of flavogallonic acid dilactone and terchebulin (in CD3OD) as compared with literature [16, 17]

From: Inhibitory activities of selected Sudanese medicinal plants on Porphyromonas gingivalis and matrix metalloproteinase-9 and isolation of bioactive compounds from Combretum hartmannianum (Schweinf) bark

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   - - - -