Table 1.
Position | 1 | 2 |
---|---|---|
δH, (J in Hz) | δH, (J in Hz) | |
1 | 2.51, dd (14.3, 7.5); 1.39, dd (14.2, 13.0) | 2.23, dd (14.0, 6.6); 1.20 dd (14.4, 13.7) |
2 | 3.08, dd (12.5, 7.7) | 2.69 dt (13.7, 7.0) |
3 | - | 2.55 p (7.3) |
5 | 3.46, s | 3.29, s |
9 | 4.40, s | 4.42, d (2.7) |
12 | 1.87, dt (9.9, 7.1); 1.59, m | 1.88, m; 1.63, m |
13 | 1.59, m | 1.63, m |
14 | 1.36, m | 1.37, dd (9.3, 2.5) |
15 | 2.09, pd (7.0, 2.8) | 2.12, qd (6.8, 2.7) |
16 | 0.85, d (7.0) | 0.89, d (6.9) |
17 | 0.82, d (6.8) | 0.86, d (6.9) |
18 | 5.48, d (1.4); 6.13, d (1.8) | 1.03, d (6.3) |
19 | 1.02, s | 1.02, s |
20 | 1.31, s | 1.30, s |