Table 1 1 H-NMR data of 1–3 (at 500 or 600 MHz, in C 5 D 5 N; δ in ppm, J in Hz )
From: New lanostane-type triterpene acids from wolfiporia extensa
position | 1 | 2 | 3 |
|---|---|---|---|
1 | 1.73, m 1.82, td (9.6, 3.2) | 1.65, m 1.75, dd (13.8, 3.0) | 1.69, m 1.88, m |
2 | 1.91, m 1.97, m | 1.79, dt (6.6, 3.0) 1.85, d (12.0) | 1.78, ddd (15.6, 6.4, 2.8)1.86, m |
3 | 5.09, br s | 4.86, br s | 4.94, br s |
5 | 1.88, dd (10.0, 4.0) | 1.68, t (5.1) | 1.76, dd (9.2, 6.4) |
6 | 2.08, m 2.09, m | 2.00, m 2.01, m | 2.02, m 2.03, m |
7 | 5.64, br s | 5.57, br s | 5.57, br s |
11 | 5.39, d (5.6) | 5.38, d (6.0) | 5.39, d (6.0) |
12 | 2.42, dd (15.6, 5.2) 2.66, d (16.8) | 2.42, dd (18.0, 6.6) 2.66, d (18.0) | 2.42, dd (17.2, 6.8) 2.66, d (16.4) |
15 | 1.95, d (12.4) 2.47, dd (12.8, 9.2) | 1.91, d (13.2) 2.45, t (3.9) | 1.91, m 2.45, dd (12.4, 8.8) |
16 | 4.52, t (6.8) | 4.51, t (7.2) | 4.52, t (6.8) |
17 | 2.86, dd (11.2, 5.6) | 2.85, dd (11.4, 6.0) | 2.84, dd (11.2, 5.6) |
18 | 1.06, s | 1.05, s | 1.04, s |
19 | 1.04, s | 0.99, s | 1.00, s |
20 | 2.95, td (10.8, 2.4) | 2.94, dd (10.8, 3.0) | 2.92, td (10.8, 2.0) |
22 | 2.46, m 2.68, m | 2.51, m 2.63, m | 2.42, m 2.61, m |
23 | 2.37, m 2.55, br d (11.6) | 2.38, m 2.54, m | 2.38, m 2.54, m |
25 | 2.29, m | 2.29, m | 2.27, m |
26 | 0.97, d (6.8) | 0.97, d (6.6) | 0.97, d (6.8) |
27 | 0.99, d (6.8) | 0.98, d (6.6) | 0.99, d (6.8) |
28 | 0.92, s | 0.87, s | 0.90, s |
29 | 0.95, s | 0.90, s | 0.96, s |
30 | 1.48, s | 1.42, s | 1.41, s |
31 | 4.84, br s 4.97, br s | 4.83, br s 4.97, br s | 4.83, br s 4.96, br s |
2′ | 8.18, d (7.2) | 3.60, s | 3.12, d (15.2) 3.16, d (15.2) |
3′ | 7.35, t (7.6) | – | – |
4′ | 7.46, t (7.4) | 3.63, s | 3.02, d (14.4) 3.08, d (14.4) |
5′ | 7.35, t (7.6) | – | – |
6′ | 8.18, d (7.2) | – | – |
-CH3 | – | – | 1.71, s |