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Table 1 1H and 13C NMR data of compound 1 measured in methanol-d4

From: In vivo anti-malarial activity of the hydroalcoholic extract of rhizomes of Kniphofia foliosa and its constituents

Present data Reference data [33]
Position δC (ppm) δH (ppm) δC (ppm) δH (ppm)
1 151.49 150.2
2 124.73 125.2
3 133.30 132.8
4 119.58 7.12 (1H, s) 119.4 7.21 (1H, s)
5 122.58 7.40 (1H, dd, J = 1.3, 8.2 Hz) 122.3 7.47 (1H, dd, J = 1.0, 8.0 Hz)
6 127.20 7.36 (1H, d, J = 8.2 Hz) 127.3 7.40 (1H, dd, J = 8.0, 8.0 Hz)
7 110.51 7.28 (1H, dd, J = 1.3, 7.3, Hz) 110.7 7.30 (1H, dd, J = 1.0, 8.0 Hz)
8 154.71 154.2
9 113.54 113.2
10 136.74 135.7
1′ 102.84 5.05 (1H, d, J = 7.9 Hz) 102.6 5.04 (1H, d, J = 7.5 Hz)
2′ 73.57 3.46 (1H, t, J = 8.8 Hz) 73.3 3.39 (1H, m)
3′ 76.82 3.37 (1H, m) 76.2 3.36 (1H, m)
4′ 70.13 2.91 (1H, m) 70.1 3.18 (1H, m)
5′ 76.10 3.68 (1H, m) 76.0 3.59 (1H, m)
6′ 66.59 4.05 ( 1H, d, J = 8.9 Hz); 3.63 (1H, m) 66.6 3.93 (1H, dd, J = 1.5, 11.0 Hz); 3.50 (2H, m)
1′′ 100.86 4.71 (1H, d, J = 1.4 Hz) 100.7 4.62 (1H, d, J = 1.5 Hz)
2′′ 70.84 3.84 (1H, dd, J = 1.6, 3.4 Hz) 70.4 3.68 (1H, m)
3′′ 71.03 3.63 (1H, m) 70.7 3.50 (2H, m)
4′′ 72.59 3.31 (1H, m) 71.9 3.20 (1H, m)
5′′ 68.55 3.52 (1H, m) 68.4 3.49 (1H, m)
6′′ 16.55 1.17 (3H, d, J = 6.2 Hz) 17.7 1.12 (3H, d, J = 6.0 Hz)
ArCH3 18.49 2.25 (3H, s) 19.0 2.25 (3H, s)
COCH3 41.3 2.97 (3H, s) 31.9 2.52 (3H, s)
COCH3 207.07 204.4
  1. s, singlet, d, doublet, dd, doublet of doublets, m, multiplet, br, broad, t, triplet