Skip to main content
. 2018 Mar 8;23(3):616. doi: 10.3390/molecules23030616

Table 1.

1H- (600 MHz) and 13C- (150 MHz) NMR data for compound 8, 13 and 23.

Carbon 8 13′ 23
1H (δ) Multiplicity 13C (δ) 1H (δ) Multiplicity 13C (δ) 1H (δ) Multiplicity 13C (δ)
1′ - - 106.89 - - 106.38 - - 106.25
2′ - - 162.36 - - 162.57 - - 161.84
3′ 6.16 (d, J = 2.22 Hz, 1H) 94.38 6.11 (d, J = 2.40 Hz, 1H) 93.81 6.00 (d, J = 2.50 Hz, 1H) 93.86
4′ - - 165.98 - - 168.42 - - 165.57
5′ 6.13 (d, J = 2.46 Hz, 1H) 91.59 5.96 (d, J = 2.34 Hz, 1H) 91.29 5.88 (d, J = 2.35 Hz, 1H) 91.06
6′ - - 165.98 - - 166.37 - - 165.55
1 - - 124.18 - - 124.40 - - 127.05
2 - - 153.65 - - 134.87 - - 113.28
3 7.06 (d, J = 9.06 Hz, 1H) 113.65 7.11 (m, 1H) 116.29 - - 140.87
4 7.03 (d, J = 9.06 Hz, 1H) 113.58 7.18 (td, J = 7.56 Hz, 7.50 Hz, 1H) 131.28 - - 149.86
5 - - 153.16 7.59 (td, J = 7.56 Hz, 7.68 Hz, 1H) 129.73 6.78 (d, J = 8.55 Hz, 1H) 110.95
6 7.22 (brs, J = 2.76 Hz, 1H) 118.10 7.35 (m, 1H) 130.27 7.20 (d, J = 8.60 Hz, 1H) 118.85
α 7.84 (d, J = 15.80 Hz, 1H, H-α) 128.59 7.86 (d, J = 15.78 Hz, 1H, H-α) 123.73 7.67 (d, J = 15.45 Hz, 1H, H-α) 127.05
β 7.86 (d, J = 15.80 Hz, 1H, H-β) 137.83 8.00 (d, J = 15.78 Hz, 1H, H-β) 160.83 8.02 (d, J = 15.45 Hz, 1H, H-β) 144.09
OCH3 (C4′) 3.84 (s, 3H) 56.62 3.84 (s, 3H) 55.78 3.75 (s, 3H) 56.15
OCH3 (C6′) 3.89 (s, 3H) 56.58 3.91 (s, 3H) 55.60 3.85 (s, 3H) 55.63
OCH3 (C2) 3.82 (s, 3H) 55.95 - - - - - -
OCH3 (C4) - - - - - - 3.81 (s, 3H) 56.22
OCH3 (C5) 3.77 (s, 3H) 56.16 - - - - - -
OH (C2′) 13.46 (s, 1H) - 14.25 (s, 1H) - - (s, 1H) -
C=O - - 193.03 - - 192.62 - - 191.86