Table 3 Comparison of 1H NMR spectral data of NZ-38 and Oleanolic acid [18]
From: Phytochemical investigations and antioxidant potential of roots of Leea macrophylla (Roxb.)
Proton | δH in ppm | |
|---|---|---|
NZ-15 (CDCl3, TMS, 500 MHz) | Oleanolic acid (CDCl3, TMS, 500 MHz) | |
H-3 | 3.63 (1H, dd,J = 8.0 & 7.6 Hz)a | 3.23 (1H, dd, J = 11.2,4.4 Hz) |
H-12 | 5.28 (1H, t, J = 3.2 Hz) | 5.27 (1H, t, J = 3.5 Hz) |
H-18 | 2.81 (1H, dd, J = 13.6,4.0 Hz) | 2.82 (1H, dd, J = 13.2, 3.6 Hz) |
H-23 | 0.98 (3H, s) | 0.98 (3H, s) |
H-24 | 0.77 (3H, s) | 0.77 (3H, s) |
H-25 | 0.89 (3H, s) | 0.90 (3H, s) |
H-26 | 0.75 (3H, s) | 0.75 (3H, s) |
H-27 | 1.1 3 (3H, s) | 1.13 (3H, s) |
Ha-28 | 3.72 (1H, d, J = 10.4 Hz) | |
Hb-28 | 3.42 (1H, d, J = 10.0 Hz) | |
H-29 | 0.90 (3H, s) | 0.91 (3H, s) |
H-30 | 0.92 (3H, s) | 0.93 (3H, s) |