Table 2.

¹H NMR (DMSO-D6, 500 MHz) and ¹³C NMR (DMSO-D6, 125 MHz) for GPS Compound

	Compound I
	Gentiopicroside
	δH	δC
1	5.59 (1H, d J = 4.0)	97.1
3	7.41 (1H, S)	149.4
4		104.1
5		163.4
7	5.00 (2H, m)	69.9
8	5.64 (1H, m)	116.8
9		125.8
10		45.1
11	5.72 (1H, ddd)	134.7
12	5.22 (1H, dt, 8.0, 2.0, H-α), 5.19 (H-β)	118.5
1’		99.6
3’	4.49 (1H, t, J = 9.5)	78.0
4’	2.93–3.67 (9H, d, H-4′–H-7′)	70.7
5’		77.3
6’		73.5
7’		61.8