Table 2 1H and 13C NMR assignment of compound 1.

From: Pradimicin U, a promising antimicrobial agent isolated from a newly found Nonomuraea composti sp. nov

Position

1H NMR

δH, multiplicity (J in Hz)

13C NMR

δC, type

1

 

169.5, C

2

 

115.7, C

3

 

140.6, C

4

6.83, s

117.3, CH

4a

 

144.1, C

5

4.21, dd (11.0, 5.1)

71.6, CH

6

4.32, dd (11.0, 5.0)

72.1, CH

6a

 

146.5, C

7

8.09, s

113.9, CH

7a

 

131.9, C

8

 

188.8, C

8a

 

115.7, C

9

 

160.9, C

10

7.29, dd (8.3, 1.1)

122.0, CH

11

7.78, d (8.3, 7.5)

137.0, CH

12

7.65, dd (7.5, 1.0)

118.5, CH

12a

 

135.5, C

13

 

181.2, C

13a

 

120.0, C

14

 

158.8, C

14a

 

130.7, C

14b

 

119.1, C

15

 

164.2, C

16

4.02, d (16.5) / 4.14, d (16.5)

50.5, CH2

17

 

205.2, C

18

2.16, s

29.9, CH3

 

5.80, d (5.1)

 
 

6.02, d (5.0)

 
 

12.62, s

 
 

13.94, s

 
 

17.79, s

 
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