Table 1 Comparison of NMR data (1H and 13C) between vanicoside A and polygonumins A.

From: Polygonumins A, a newly isolated compound from the stem of Polygonum minus Huds with potential medicinal activities

C

Vanicoside A*

Polygonumins A

1H (300 MHz)

13C (75 MHz)

1H (600 MHz)

13C (125 MHz)

1

4.25, 4.6 m

63.80

4.21 (m, 1 H),

4.41 (m, 1 H)

65.0

2

—

102.12

—

102.7

3

5.61 d (8.4)

77.64

5.62 (d, 7.8, 1 H)

78.2

4

4.65 m

72.65

4.83 (ddd, 13.2, 10.2, 3.6, 1 H)

72.7

5

4.3 m

79.82

4.31 (m, 1 H)

80.4

6

4.6 m

64.55

4.61 (dd, 12.0, 3.0, 1 H), 4.47 (m, 1 H)

64.2

1′

5.66 d (3.6)

89.18

5.77 (d, 3.6, 1 H)

89.1

2′

4.69 m

73.01

4.67 (t, 7.8, 1 H)

73.2

3′

3.9 m

70.79

4.47 (m, 1 H)

68.6

4′

3.51 dd (9.4, 9.4)

70.66

4.98 (t, 10.2, 1 H)

71.4

5′

4.3 m

70.79

4.11 (br t, 9.6, 1 H)

68.8

6′

4.3, 4.35 m

64.49

4.41 (m, 1 H), 4.21 (m, 1 H)

63.1

1″, 1″′

—

125.69

—

126.1

—

125.77

—

126.04

—

125.84

—

125.91

—

126.38

—

125.9

2″

7.33 d (1.8)

110.08

7.55 (d, 8.4, 1 H)

130.21

3″

—

148.97b

6.94 (d, 8.4, 1 H)

115.9

4″

—

147.62b

—

159.81

5″

6.81

114.94

6.94 (d, 8.4, 1 H)

115.9

6″

7.11 dd (1.8, 8.2)

123.24

7.55 (d, 8.4, 1 H)

130.21

7″, 7′″″

7.58, 7.62, 7.64, 7.72 ea d (16)

 

7.78 (d, 15.6, 1 H)

146.1

144.92

7.72 (d, 15.6, 1 H)

145.3

145.91

7.68 (d, 10.2, 1 H)

145.2

145.10

7.64 (dd, 13.2, 1.2, 1 H)

145.1

8″, 8′″″

6.33, 6.40, 6.45, 6.53 ea d (16)

113.41

6.51 (d, 14.4, 1 H)

113.6

113.87

6.48 (d, 13.8, 1 H)

114.1

113.97

6.43 (d, 12.6, 1 H)

114.2

114.53

6.42 (d, 16.2, 1 H)

114.3

9″, 9′″″

—

165.93

—

166.0

165.96

—

166.04

166.46

—

166.5

166.64

—

166.6

2/6′″−2/6″″′

7.45–7.65 m

130.02

7.57 (d, 8.4, 2 H)

130.24

130.06

7.57 (d, 8.4, 2 H)

130.3

130.31

7.55 (d, 8.4, 2 H)

130.4

3/5″′−3/5″″′

6.85–6.89 m

115.63

6.90 (m, 2 H)

115.8

115.64

6.90 (m, 2 H)

115.9

115.73

6.94 (d, 8.4, 2 H)

116.0

4′″ − 4″″′

—

159.53

—

159.84

159.63

—

159.9

159.81

—

160.2

1″″″ (C=O)

—

170.12 (1)

—

170.1 (1)

2″″″

2.06 s

20.03 (1)

1.99 (s, 3 H)

20.0 (1)

1″″″′

3.85 s

55.25

—

169.6 (2)

2″″″′

1.99 (s, 3 H)

20.1 (1)

7.33 d (1.8, OH phenolic)

7.83, 7.64 (4 OH phenolic)

4.21

4.41 2 (OH glucose)

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