Table 3 13C NMR spectroscopic data (chemical shifts [ppm]) of isolated compounds (500 MHz, DMSO-d6).

From: Structural Characterization and Evaluation of the Antioxidant Activity of Phenolic Compounds from Astragalus taipaishanensis and Their Structure-Activity Relationship

Position

Compounds

1

2

3

4

5

6

1

  

126.44

   

2

73.51

153.60

130.43

147.28

147.29

154.15

3

36.08

123.63

115.54

136.14

136.10

123.84

4

33.84

175.08

160.22

176.27

176.35

175.15

5

133.75

127.76

115.54

161.13

161.15

127.44

6

111.59

115.67

130.43

98.65

98.67

116.11

7

160.09

163.05

 

164.30

164.35

161.91

8

106.89

102.59

 

93.85

93.96

103.86

9

158.92

157.92

 

156.60

156.64

157.52

10

117.35

117.08

 

103.45

103.49

118.91

1′

124.98

124.71

113.15

120.51

122.12

124.47

2′

152.08

130.54

165.54

148.13

129.97

130.57

3′

140.06

114.08

102.50

145.49

115.91

114.10

4′

155.66

159.43

166.18

115.47

159.63

159.49

3′O-CH3

63.61

     

4′O-CH3

58.78

55.62

   

55.62

5′

125.36

114.08

107.99

116.05

115.91

114.10

6′

106.36

130.54

131.97

122.40

129.97

130.57

1″

     

100.42

2″

     

73.59

3″

     

76.93

4″

     

70.07

5″

     

77.67

6″

     

61.09

α

  

116.95

   

β

  

144.16

   

CO

  

192.01

   
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