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Table 1 13C (125 MHz) and1H (500 MHz) NMR spectroscopic data for 1 in DMSO-d6.

From: Dihydrochalcone glycosides from Oxytropis myriophylla

position

δH

δC

1

 

130.4

2

6.65 (1H, d, J = 2.0 Hz)

115.7

3

 

146.3

4

 

145.8

5

6.60(1H, d, J = 8.0 Hz)

112.4

6

6.80(1H, d, J = 8.0 Hz)

118.7

7

2.75(2H, t, J = 8.2 Hz)

29.4

8

3.27(2H, t, J = 8.2 Hz)

45.4

9

 

204.9

1'

 

105.3

2'

 

162.9

3'

6.00(1 H, s)

94.8

4'

 

163.7

5'

6.00(1 H, s)

94.8

6'

 

162.9

OCH3

3.70 (3H, s)

55.7

1"

5.08 (1H, d, J = 7.0 Hz)

97.1

2"

3.50

77.1

3"

3.34

76.5

4"

3.50

69.4

5"

3.37

76.8

6"

3.50~3.65

60.3

1"'

5.04 (1H, br s)

100.6

2"'

3.82

70.4

3"'

3.02

70.5

4"'

3.02

71.9

5"'

3.82

68.3

6"'

1.25 (3H, d, J = 7.0 Hz)

18.1