Table 1.
The 1H- and 13C-NMR data of compounds 1, 2 and 3.
| H/C | 1 a | 2 a | 3 b | |||
|---|---|---|---|---|---|---|
| δH (Mult., J in Hz) | δC (DEPT) | δH (Mult., J in Hz) | δC (DEPT) | δH (Mult., J in Hz) | δC (DEPT) | |
| 1 | 138.2 (s) | 137.9 (s) | 138.3 (s) | |||
| 2 | 6.84 (d, 1.2) | 116.3 (d) | 6.85 (s) | 116.6 (d) | 6.86 (s) | 116.4 (d) |
| 3 | 156.5 (s) | 156.4 (s) | 156.4 (s) | |||
| 4 | 124.4 (s) | 123.8 (s) | 123.6 (s) | |||
| 5 | 7.01 (d, 8.0) | 127.6 (d) | 7.01 (d, 8.4) | 127.8 (d) | 7.02 (d, 8.4) | 127.9 (d) |
| 6 | 6.82 (dd, 8.0, 1.2) | 118.8 (d) | 6.82 (d, 8.4) | 119.2 (d) | 6.83 (d, 8.4) | 119.0 (d) |
| 7 | 5.04 (s) | 65.3 (t) | 5.03 (s) | 65.5 (t) | 5.05 (s) | 65.3 (t) |
| 8 | 80.8 (s) | 81.3 (s) | 81.4 (s) | |||
| 9 | 4.36 (d, 11.6) | 68.3 (t) | 4.33 (d, 12.0) | 68.2 (t) | 4.34 (d, 11.6) | 68.3 (t) |
| 4.23 (d, 11.6) | 4.22 (d, 12.0) | 4.23 (d, 11.6) | ||||
| 10 | 1.66 (s) | 21.0 (q) | 1.64 (s) | 20.2 (q) | 1.65 (s) | 20.2 (q) |
| 11 | 3.54 (m), 3.39 (m) | 59.1 (t) | 3.28 (s) | 50.9 (q) | 3.29 (s) | 51.0 (q) |
| 12 | 1.25 (t, 7.2) | 15.4 (q) | ||||
| 1′ | 176.6 (s) | 170.8 (s) | 176.6 (s) | |||
| 2′ | 2.56 (m) | 34.0 (d) | 2.10 (s) | 20.9 (q) | 2.60 (m) | 33.9 (d) |
| 3′ | 1.20 (d, 6.8) | 19.0 (q) | 1.20 (d, 6.8) | 18.8 (q) | ||
| 4′ | 1.20 (d, 6.8) | 19.0 (q) | 1.20 (d, 6.8) | 18.9 (q) | ||
| 1“ | 176.9 (s) | 176.5 (s) | 176.9 (s) | |||
| 2“ | 2.62 (m) | 34.0 (d) | 2.55 (m) | 33.9 (d) | 2.60 (m) | 34.0 (d) |
| 3“ | 1.13 (d, 6.8) | 18.9 (q) | 1.12 (d, 6.6) | 18.8 (q) | 1.12 (d, 6.8) | 18.9 (q) |
| 4“ | 1.13 (d, 6.8) | 18.9 (q) | 1.13 (d, 6.6) | 18.8 (q) | 1.13 (d, 6.8) | 20.2 (q) |
a Recorded in CDCl3; b Recorded in CD3OD.