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Table 1 1H (500 MHz) and 13C NMR (125 MHz) data of 1 and 7 (δ in ppm, CDCl3)

From: Prenylated chromones and flavonoids isolated from the roots of Flemingia macrophylla and their anti-lung cancer activity

Position

1

7

δH (mlti., J in Hz)

δC

δH (mlti., J in Hz)

δC

2

5.35, t (3.5)

100.6

7.84, s

152.3

3

2.99, dd (17.1, 3.7)

2.75, dd (17.1, 3.2)

41.8

 

123.8

4

 

194.3

 

181.2

5

 

156.3

 

165.3

6

 

103.3

6.29, s

95.1

7

 

159.7

 

163.4

8

 

108.9

 

113.0

9

 

155.2

 

153.4

10

 

102.8

 

106.3

1ʹ

   

122.9

2ʹ

  

7.33, d (7.9)

130.5

3ʹ

  

6.84, d (8.0)

115.9

4ʹ

6.61, d (10.0)

115.6

 

156.3

5ʹ

5.48, d (10.0)

125.9

6.84, d (8.0)

115.7

6ʹ

 

78.1

7.33, d (7.9)

130.5

1ʺ

3.27, dd (14.0, 7.6)

3.20, dd (14.0, 6.8)

21.4

 

43.9

2ʺ

5.14, m

122.7

4.52, q (6.6)

91.0

3ʺ

 

131.0

1.50, s

25.8

4ʺ

1.66, s

25.7

1.25, s

21.6

5ʺ

1.78, s

17.8

1.40, d (6.6)

14.3

2-OCH3

3.47, s

56.3

  

6ʹ-CH3

1.44, s

1.42, s

28.4

28.3

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