Table 2 1H (500 MHz) and 13C (125 MHz) NMR Data of 4 and 5.

From: Antioxidative Polyketones from the Mangrove-Derived Fungus Ascomycota sp. SK2YWS-L

Position

4 a

5 a

δC, type

δH, m (J in Hz)

δC, type

δH, m (J in Hz)

1

79.6, CH

6.72, s

77.1, CH

6.84, s

3

74.4, CH2

5.33, dd (2.7, 11.6)

173.5, C

 
  

5.00, d (11.6)

  

3a

143.1, C

 

168.2, C

 

4

98.2, CH

6.34, d (1.9)

102.0, CH

6.34, d (1.6)

5

162.8, C

 

168.2, C

 

6

101.8, CH

6.20, d (1.9)

99.2, C

6.23, brs

7

153.5, C

 

157.0, C

 

7a

120.3, C

 

107.4, C

 

8

111.4, C

 

107.3

 

9

157.1, C

 

158.7, C

 

10

109.4, CH

6.16, s

108.6, CH

6.13, s

11

140.3, C

 

142.1, C

 

12

109.4, CH

6.16, s

108.6, CH

6.13, s

13

157.1, C

 

157.0, C

 

14

21.3, CH3

2.16, s

21.5, CH3

2.16, s

15

55.9, CH3

3.73, s

56.2, CH3

3.76, s

  1. ameansured in methanol-d4.
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