Table 2
13C NMR and 1H NMR (500 MHz, methanol-D4) chemical shifts for 5-O-caffeoyl
quinic acid.
5-CQAa number of carbon (Fig. 1) 13C (d/ppm) 1H (d/ppm)
1 74.71
2 37.33 2.02 br tb
2.22 br db
3 70.51 5.31 tb
4 72.06 3.71 db
5 70.57 4.15 br sb
6 36.76 2.05 br d
2.14 d
7 175.61
10 126.36
20 113.86 7.027 br s
30 145.33
40 148.11
50 115.07 6.94 d
60 121.58 6.75 d
70 145.66 7.56 d
80 113.79 6.22 d
90 167.27