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Table 2 Comparison of 13C NMR data of equisetin from the present study (in DMSO-d 6 ) with published data (in CDCl3) [25]

From: Antimicrobial activities of endophytic fungi obtained from the arid zone invasive plant Opuntia dillenii and the isolation of equisetin, from endophytic Fusarium sp.

C#

13C δ (ppm) for equisetin

C#

13C δ (ppm) for equisetin

Present study

Published values

Present study

Published values

1

190.2

190.6

12

14.0

13.7

2

47.9

48.4

13

127.3

127.1

3

44.1

44.6

14

130.4

130.4

4

126.4

126.2

15

17.8

18.2

5

129.8

129.8

16

22.4

22.5

6

38.2

38.4

2′

176.3

176.7

7

41.8

41.9

3′

100.6

99.8

8

33.0

33.3

4′

195.8

198.9

9

35.4

35.5

5′

67.5

66.4

10

27.8

28.1

6′

57.7

60.0

11

40.0

39.6

7′

26.8

27.2