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Table 1 1H (500 MHz) and 13C (125 MHz) NMR spectral data of compounds 1 and 2

From: Polyphenolic glycosides isolated from Pogostemon cablin (Blanco) Benth. as novel influenza neuraminidase inhibitors

Position 1a 2b
δC δH δC δH
1 172.75   172.08  
2 38.94 3.50 38.77 3.33
3 135.79   135.80  
4 119.83   122.53  
5 158.30   156.88  
6 101.42 6.29, d (4) 100.86 6.49, br s
7 159.95   159.59  
8 110.43 6.25, d (4) 112.28 6.37, br s
9 211.28   209.76  
10 47.23 3.40, m 47.44 3.25
11 25.94 1.35, m
1.75, m
25.75 1.24, m
1.65, m
12 10.91 0.90, t 11.90 0.82, t
13 14.87 1.08, d (8.5) 15.76 0.98, d (6.5)
14-OCH3 51.02 3.68, s   
Glu-1    100.25 4.93, d (7.5)
Glu-2    77.54 3.31
Glu-3    77.45 3.31
Glu-4    69.94 3.16
Glu-5    73.82 3.19
Glu-6    61.00 3.70
3.49
  1. aMeasured in CD3OD
  2. bMeasured in DMSO-d 6, δ Chemical shifts are given in ppm, J values are in parentheses and reported in Hz