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Table 2 1 H NMR (600 MHz) and 13 C NMR (150 MHz) data of compound 1 in DMSO- d 6 (δ, ppm)

From: Anti-proliferative of physcion 8-O-β-glucopyranoside isolated from Rumex japonicus Houtt. on A549 cell lines via inducing apoptosis and cell cycle arrest

Position δH(J in Hz) δc Position δH(J in Hz) δc
1 12.87 (s, -OH) 161.6 8a   114.5
2 7.17 (brs) 125.1 9a   114.4
3   147.1 10a   136.4
4 7.46 (d, 1.6 Hz) 119.3 1′   100.9
5 7.38 (d, 2.6 Hz) 106.7 2′   73.3
6   164.7 3′   77.2
7 7.19 (d, 2.6 Hz) 107.5 4′   69.8
8 3.74 (s) 161.1 5′   76.8
9   186.4 6′   60.8
10   181.7 3-CH3 2.39 (s) 21.3
4a   132.1 6-OCH3 3.97 (s) 56.1