From: Anti-cholinesterases and memory improving effects of Vietnamese Xylia xylocarpa
Position | (3β)-Hopan-3-ol-28,22-olide (1) | |
---|---|---|
δ C, type | δ H (J in Hz) | |
1a | 39.1, CH2 | 1.62, m |
1b | 1.72, m | |
2 | 27.6, CH2 | 1.61, m |
3 | 79.1, CH | 3.19, dd (11.4, 4.8) |
4 | 41.0, C | – |
5 | 55.6, CH | 0.69, m |
6 | 18.5, CH2 | 1.56, m |
7 | 34.2, CH2 | 1.39, m |
8 | 41.8, C | – |
9 | 50.9, CH | 1.38, m |
10 | 37.4, C | – |
11 | 20.6, CH2 | 1.51, m |
12 | 27.0, CH2 | 1.62, m |
13 | 37.1, CH | 1.79, m |
14 | 41.8, C | – |
15a | 33.8, CH2 | 1.82, m |
15b | 1.59, m | |
16a | 26.5, CH2 | 2.00, m |
16b | 1.61, m | |
17 | 48.3, CH | 1.62, m |
18 | 48.7, C | – |
19a | 29.1, CH2 | 2.41, dt (13.3, 3.5) |
19b | 1.25–1.30, m | |
20 | 29.1, CH2 | 1.25, m |
21 | 42.6, CH | 2.13, t (4.4) |
22 | 83.4, C | – |
23 | 28.2, CH3 | 0.96, s |
24 | 15.9, CH3 | 0.76, s |
25 | 16.4, CH3 | 0.83, s |
26 | 15.5, CH3 | 0.93, s |
27 | 14.2, CH3 | 0.94, s |
28 | 175.9, C | – |
29 | 30.3, CH3 | 1.46, s |
30 | 30.4, CH3 | 1.32, s |