Table 3: The 1H NMR (CDCl3, 400 MHz), 13C NMR (CDCl3, 100 MHz), and DEPT-135 spectral data of compound 2.

Position1H NMR13C NMRDEPT-135[11]
1H NMR13C NMR

2160.7161.1
3131.3131.9
47.54, 1H, s138.3138.297.54, 1H, s138.5
5112.0112.1
67.19, 1H, s128.2128.167.17, 1H, s128.2
7124.9125.4
8157.3157.5
96.95, 1H, s102.57.04, 1H, s102.5
10153.3153.2
1′40.340.31
2′6,16, (1H, dd, J = 10.8, 17.6)145.6145.646.16, 1H, dd, J = 10.2, 18 Hz145.6
3′5.09, 5.07 (2H, dd, J = 10.2, 18 Hz)112.8112.775.1 (2H, dd, J = 10.2, 18 Hz)112.7
4′,5′1.48, 6H, s26.21.48 (6H, s)26.1
2″3.38 (2H, d, J = 7.2 Hz)28.628.623.38 (2H, d, J = 7.2 Hz)28.4
3″5.33 (1H, t)121.25.33, 1H, m121.3
4″135.0134.6
5″1.80 (3H, s)25.825.831.80, 3H, s25.8
6″1.78 (3H, s)17.917.891.75, 3H, s17.9