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Table 3 1 H-NMR and 13 C-NMR data of compounds 2-5

From: Extracts and compounds with anti-diabetic complications and anti-cancer activity from Castanea mollissina Blume (Chinese chestnut)

NO. 2 3 4 5
1H-NMR1 13C-NMR1 1H-NMR1 13C-NMR1 1H-NMR2 13C-NMR2 1H-NMR2 13C-NMR2
2   156.4   156.4   158.1   158.7
3   133.0   133.0   134.6   134.2
4   177.4   177.4   178.8   178.8
5   156.3   156.3   162.8   162.7
6 6.15 (1H, d, 1.9) 98.7 6.15 (1H, d, 1.9) 98.7 6.05 (1H, br.s) 100.4 6.05 (1H, br.s) 99.7
7   164.1   164.1   165.4   165.3
8 6.39 (1H, d, 1.9) 93.5 6.39 (1H, d, 1.9) 93.5 6.24 (1H, br.s) 94.5 6.25 (1H, br.s) 94.6
9   161.1   161.1   158.0   158.0
10   103.9   103.9   105.7   105.6
1′   120.7   120.7   122.6   122.7
2′, 6′ 7.99 (2H, d, 9.2) 130.8 7.99 (2H, d, 9.2) 130.8 7.89 (2H, d, 8.8) 132.0 7.95 (2H, d, 8.8) 131.9
3′, 5′ 6.86 (2H, d, 9.2) 115.1 6.86 (2H, d, 9.2) 115.1 6.78 (2H, d, 8.8) 116.0 6.86 (2H, d, 8.8) 115.9
4′   160.0   160.0   161.2   160.9
1′′ 5.45 (1H, d, 7.7) 100.9 5.45 (1H, d, 7.7) 100.9 5.57 (1H, d, 8.0) 99.6 5.65 (1H, d, 8.4 ) 100.3
2′′ 3.28 (1H, d, 7.7) 74.2 3.28 (1H, d, 7.7) 74.2 4.92 (1H, d, 8.0) 75.7 5.09 (1H, dd, 8.8,8.4) 75.6
3′′ 3.25 (1H, d, 7.7) 76.2 3.25 (1H, d, 7.7) 76.2 3.48 m 76.2 3.71 (1H, dd, 8.8,8.8) 76.1
4′′ 3.18 (1H, m) 69.9 3.18 (1H, m) 69.9 3.30 m (1H, d, 8.8) 71.5 3.44 (1H, dd, 8.8,8.8) 71.9
5′′ 3.38 (1H, m) 74.1 3.38 (1H, m) 74.1 3.21 m 78.6 3.59 (1H, m) 75.8
6′′ 4.28 (1H, dd, 12.0, 2.0) 63.0 4.28 (1H, dd, 12.0, 2.0) 63.0 3.67 m 62.5 4.23 (1H, br.d, 10.8) 64.1
4.03 (1H, dd, 12.0, 2.0) 4.03 (1H, dd, 12.0, 2.0) 3.46 m 4.37 (1H, br.d, 10.8)
1′′′   124.9   124.9   127.1   126.9
2′′′, 6′′′ 7.37 (2H, d, 8.5) 130.1 7.37 (2H, d, 8.5) 130.1 7.34 (2H, d, 8.4) 131.0 7.30 (2H, d, 8.8) 131.0
3′′′, 5′′′ 6.79 (2H, d, 8.5) 115.6 6.79 (2H, d, 8.5) 115.6 6.70 (2H, d, 8.4) 116.6 6.80 (2H, d, 8.8) 116.6
4′′′   159.8   159.8   160.9   160.8
7′′′ 7.34 (1H, d, 15.8) 144.6 7.34 (1H, d, 15.8) 144.6 7.55 (1H, d, 16.0) 146.6 7.40 (1H, d, 15.6) 146.3
8′′′ 6.11 (1H, d, 15.8) 113.6 6.11 (1H, d, 15.8) 113.6 6.25 (1H, d, 16.0) 115.0 6.07 (1H, d, 15.6) 114.5
9′′′   166.1   166.1   168.1   168.5
1′′′′         126.9
2′′′′, 6′′′′        7.48 (2H, d, 8.8) 131.0
3′′′′, 5′′′′        6.80 (2H, d, 8.8) 116.6
4′′′′         160.9
7′′′′        7.72 (1H, d, 16.0) 146.8
8′′′′        6.44 (1H, d, 16.0) 115.1
9′′′′         168.2