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Table 1 The 1H-NMR (600 MHz) and 13C-NMR (150 MHz) data of compound 1 and 3–5 (in DMSO); δ in ppm; J in Hz

From: Antibacterial activities of triterpenoidal compounds isolated from Calothamnus quadrifidus leaves

Position 1 3 4 5
δC δH δC δH δC δH δC δH
1 38.84   38.20   39.38   40.75  
2 27.61   27.55   67.43   67.66  
3 77.14 3.39 (1 H, brs) 82.52 3.83 (1 H, s) 77.30 3.62 (1 H, brs) 82.65 3.62 (1 H, brs)
4 38.93   38.87   38.87   40.40  
5 55.25   55.17   55.87   55.87  
6 18.42   18.43   18.46   77.35 2.13 (1 H, m)
7 34.37   34.45   36.82   40.40  
8 40.66   40.49   40.40   39.38  
9 50.36   50.32   48.97   48.97  
10 37.18   37.22   38.02   38.02  
11 20.91   20.91   21.54   22.61  
12 25.52   25.47   25.56   23.81  
13 38.04   38.04   38.95   38.95  
14 42.45   42.45   42.48   42.48  
15 30.55   30.55   31.81   30.85  
16 32.16   32.16   32.17   32.17  
17 55.94   55.84   55.87   55.87  
18 47.07   47.02   47.07   47.07  
19 49.07   48.97   48.93   48.97  
20 150.82   150.67   150.37   150.60  
21 29.66   29.53   29.09   29.28  
22 36.80   36.70   36.81   36.81  
23 28.55 1.32 (3 H, s, Me) 63.21 3.70 (2 H, s) 62.87 3.69 (2 H, s) 63.26 3.70 (2 H, s)
24 16.17 1.11 (3 H, s, Me) 16.42 1.32 (3 H, s, Me) 17.35 1.32 (3 H, s, Me) 17.35 1.38 (3 H, s, Me)
25 16.27 0.87 (3 H, s, Me) 17.37 0.91 (3 H, s, Me) 17.58 0.81 (3 H, s, Me) 17.58 0.76 (3 H, s, Me)
26 16.41 0.77 (3 H,s, Me) 17.60 1.07 (3 H,s, Me) 16.48 0.96 (3 H,s, Me) 18.46 1.08 (3 H,s, Me)
27 14.84 0.93 (3 H, s, Me) 16.14 1.08 (3 H, s, Me) 14.80 0.71 (3 H, s, Me) 14.80 0.82 (3 H, s, Me)
28 177.72 12.03 (1 H, brs) 177.60 12.03 (1 H, brs) 177.98 12.07 (1 H, brs) 177.75 12.04 (1 H, brs)
29 110.11 4.69 (1 H, brs, H-29a) 4.56 (1 H, brs, H-29b) 109.96 4.69 (1 H, brs, H-29a) 4.57 (1 H, brs, H-29b) 109.21 4.69 (1 H, brs, H-29a) 4.57 (1 H, brs, H-29b) 110.10 4.69 (1 H, brs, H-29a) 4.57 (1 H, brs, H-29b)
30 19.39 1.65 (3 H,s, Me) 19.39 1.65 (3 H,s, Me) 19.40 1.65 (3 H,s, Me) 19.40 1.65 (3 H,s, Me)
31    172.53      
32    21.55 1.91 (3 H,s, Me)     
  1. a,b represent the two geminal protons on C29