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Table 1 NMR spectra data of compound 6 in CD 3 OD

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

No. 1H-NMR 13C-NMR HMBC
2   158.17 s  
3   134.58 s  
4   179.00 s  
5   162.69 s  
6 6.06 (1H, br.s) 99.79 d 5, 7, 8, 10
7   165.32 s  
8 6.25 (1H, d, 1.6) 94.54 d 6, 7, 9, 10
9   157.96 s  
10   105.55 s  
1′   122.52 s  
2′, 6′ 7.96 (2H, d, 8.8) 131.95 d 2, 4′
3′, 5′ 6.87 (2H, d, 8.8) 116.10 d 4′, 1′
4′   161.13 s  
1′′ 5.54 (1H, d, 8.0 ) 100.85 d 3, 2′′
2′′ 5.38 (1H, dd, 9.6,8.0) 73.98 d 1′′, 3′′, 9′′′
3′′ 3.82 (1H, m) 73.13 d 2′′
4′′ 3.88 (1H, m) 70.53 d 2′′
5′′ 3.85 (1H, m) 74.90 d  
6′′ 4.19 (1H, dd, 11.6) 64.15 t 9′′′′
4.36 (1H, dd, 11.6)
1′′′   127.09 s  
2′′′, 6′′′ 7.46 (2H, d, 8.4) 131.00 d 4′′′, 7′′′
3′′′, 5′′′ 6.79 (2H, d, 8.4) 116.59 d 1′′′, 4′′′
4′′′   160.94 s  
7′′′ 7.69 (1H, d, 15.6) 146.68 d 6′′′, 8′′′, 9′′′
8′′′ 6.40 (1H, d, 15.6) 115.12 d 1′′′, 9′′′
9′′′   168.23 s  
1′′′′   126.87 s  
2′′′′, 6′′′′ 7.27 (2H, d, 8.4) 130.92 d 4′′′′, 7′′′′
3′′′′, 5′′′′ 6.79 (2H, d, 8.4) 116.59 d 1′′′′, 4′′′′
4′′′′   160.87 s  
7′′′′ 7.40 (1H, d, 15.6) 146.35 d 6′′′′, 8′′′′, 9′′′′
8′′′′ 6.05 (1H, d, 15.6) 114.43 d 9′′′′
9′′′′   168.21 s