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International Journal of Phytomedicine and Phytotherapy

Table 1 13C NMR chemical shift values (ppm) of stigmasterol and β-sitosterol recorded in CDCl3

From: Hypoglycaemic activity of Smilax canellifolia Mill. rhizomes: a bioassay-guided isolation and identification of synergistic compounds

Carbons Stigmasterol β-sitosterol
Observed Literature Observed Literature
1 37.3 37.6 36.5 37.5
2 31.9 32.1 31.7 31.9
3 71.8 72.1 71.8 72.0
4 42.8 42.4 42.3 42.5
5 140.8 141.1 140.7 140.9
6 121.8 121.8 121.8 121.9
7 31.9 31.8 31.9 32.1
8 31.9 31.8 31.9 32.1
9 50.2 50.2 50.1 50.3
10 36.5 36.6 36.2 36.7
11 21.2 21.5 21.1 21.3
12 39.8 39.9 39.7 39.9
13 42.3 42.4 42.2 42.6
14 56.9 56.8 56.8 56.9
15 24.4 24.4 26.0 26.3
16 29.1 29.3 28.3 28.5
17 56.0 56.2 56.1 56.3
18 40.5 40.6 36.2 36.3
19 23.1 21.7 19.0 19.2
20 138.4 138.7 33.9 34.2
21 129.3 129.6 26.0 26.3
22 45.8 46.1 45.8 46.1
23 25.4 24.4 23.1 23.3
24 12.1 12.1 11.9 12.2
25 29.1 29.6 28.9 29.4
16 21.1 20.2 19.9 20.1
27 19.9 19.8 19.4 19.6
28 18.8 18.9 19.0 19.0
29 12.3 12.2 12.0 12.0