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Table 1 1H–NMR and 13C–NMR (δ values; J values in Hz) data for Norcaesalpin D

From: Anti-plasmodial activity of Norcaesalpin D and extracts of four medicinal plants used traditionally for treatment of malaria

Position Observed value (600 MHz in CD2Cl2) Reported value by Roach et al., 2007 (500 MHz in CDCl3)
δC mult δH, mult (J in Hz) δC δH, mult (J in Hz)
1 32.0 1.59, m
1.39, m
31.6 1.40, m
1.58, m
2 18.9 1.59, m
1.92, m
18.7 1.53, m
1.86, m
3 31.9 1.56, m
1.90, m
31.7 1.64
1.94
4 49.2   49.0  
5 76.6   76.4  
6 28.2 1.84, ddd (14.9, 4.2, 2.6)
2.37, td (14.6, 4.8)
27.9 1.88, m
2.40, m
7 21.8 1.55, m
2.24, m
21.5 1.60, m
2.33, m
8 44.3 2.31,td (11.9, 4.8) 44.2 2.33, m
9 44.7 2.59, m 44.5 2.62, m
10 41.9   41.7  
11 23.4 2.61, m
2.80, m
23.2 2.81, m
12 167.1   166.8  
13 119.8   119.8  
14 195.9   196.1  
15 106.4 6.59, dd (2.0, 0.4) 106.5 6.64, d (2.0)
16 143.1 7.32, d (1.8) 142.2 7.30, d (2.0)
17 -   -  
18 23.7 1.15, s 23.7 1.19, s
19 177.2   177.2  
20 15.1 0.87, d (0.6) 15.1 0.89, s
19-OMe 51.7 3.65, s 51.7 3.69, s
  1. Assignments were based on COSY, HSQC and HMBC experiments