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Table 1: 1H & 13C-NMR spectroscopic data for cucurbitacins 1 and 2

From: Antibacterial and antioxidant activities of extracts and isolated compounds from the roots extract of Cucumis prophetarum and in silico study on DNA gyrase and human peroxiredoxin 5

Compound 1 Compound 2
Position δH δC Position δH δC
1 5.95 (1H, brd s) 114.4 1 1.23 (1H, d, J = 4.4)
1.27 (1H, m)
36.1
2   144.6 2 4.43 (1H, dd, J = 6.0, 6.0) 71.5
3   198.5 3   212.8
4   47.6 4   50.3
5   136.9 5   140.5
6 5.79 (1H, m) 120.1 6 5.79 (1H, dd J = 2, 2) 119.8
7 2.07 (1H, m)
2.25 (1H, m)
50.2 7 2.43 (1H, brd s)
1.27 (1H, m)
24.3
8 2.29 (1H, m) 42.1 8 2.21 (1H, brd s) 42.9
9   50.3 9   45.0
10   49.8 10 2.79 (1H, d, J = 5.2) 33.9
11   215.9 11   215.9
12 2.07 (2H, m) 50.0 12 2.00 (1H, brd s)
2.07 (1H, brd s)
50.0
13   44.8 13   49.9
14   44.3 14   44.3
15 3.08 (1H, s)
2.39 (1H, s)
45.6 15 2.43 (1H, brd s)
3.17 (1H, s)
49.2
16   210.3 16   210.3
17   46.7 17 1.95 (1H, s)
2.53 (1H, s)
45.7
18 1.14 (3H, s) 19.1 18 1.23 (3H, s) 19.3
19 1.98 (1H, brd s)
2.54 (1H, brd s)
49.2 19 1.14 (3H, s) 20.0
20 1.38 (3H, s) 20.2 20 1.34 (3H, s) 21.2
21 3.92 (1H, brd s) 80.2 21 1.27 (3H, s) 29.2
22   210.0 22 1.00 s (3H, s) 24.3
23 2.47 (2H, brd s) 23.9  
24   211.0  
25   45.1  
26 1.10 (3H, s) 20.0  
27 1.03 (3H, s) 24.3  
28 3.56 (3H, s) 34.8  
29 1.26 (3H, s) 27.8  
30 1.25 (3H, s) 20.1  
1′ 2.29 (1H, m) 43.3  
2′   23.9  
3′   24.2  
4′ 2.79 (1H, m) 36.3  
5′ 1.27 (3H, d, J = 5.2) 18.5  
1″   44.2  
2″ 2.54 (1H, brd s)
1.98 (1H, d J = 3.2)
49.1  
3″ 2.02 (2H, m) 45.9  
4″ 5.97 (1H, m) 121.3  
5″   138.3  
6″ 1.34 (3H s) 24.1  
7″ 0.81 (3H, s) 20.9  
8″ 1.00 (3H, s) 24.2