1H and 13C NMR spectroscopic data for compounds 4–6 in CDCl3.
| No. | δ C | δ H | ||||
|---|---|---|---|---|---|---|
| 4 | 5 | 6 | 4 | 5 | 6 | |
| 1 | 121.2 | 117.8 | 116.9 | 6.59, brs | 6.46, d (7.6) | 6.47, d (7.6) |
| 2 | 125.2 | 125.4 | 125.6 | 6.59, brs | 6.66, dd (9.5, 7.6) | 6.37, brt (7.6) |
| 4 | 167.8 | 166.8 | 166.5 | |||
| 5 | 57.5 | 59.3 | 55.4 | 4.51, brt (8.1) | 4.01, dd (8.5, 4.4) | 4.44, ddd (11.2, 8.1, 3.4) |
| 7 | 167.7 | 168.2 | 168.1 | |||
| 8 | 57.8 | 57.9 | 57.6 | 4.87, d (7.3) | 5.09, d (7.6) | 4.95, d (7.2) |
| 9 | 81.6 | 80.7 | 81.7 | 5.90, d (7.3) | 5.99, d (7.6) | 5.91, d (7.2) |
| 11 | 155.3 | 155.0 | 155.4 | |||
| 12 | 123.2 | 123.3 | 123.2 | 7.26, overlap | 7.32, overlap | 7.34, overlap |
| 13 | 130.2 | 130.2 | 130.4 | 7.05, dd (6.8, 1.3) | 7.13, t (7.1) | 7.14, overlap |
| 14 | 131.9 | 132.3 | 132.2 | |||
| 15 | 131.0 | 131.6 | 131.7 | 7.10, dd (6.8, 1.3) | 7.10, t (7.1) | 7.14, overlap |
| 16 | 121.9 | 122.8 | 122.5 | 7.29, overlap | 7.34, overlap | 7.34, overlap |
| 17 | 73.1 | 34.4 | 36.7 | 4.94, d (7.6) | 2.16, m | a 3.40, dd (14.8, 3.4) |
| b 2.61, dd (14.8, 11.2) | ||||||
| 18a | 139.0 | 136.9 | ||||
| 18,18′ | 126.9 | 23.9 | 128.8 | 7.24, overlap | 1.17, m, 0.88, m | 7.09, d (8.7) |
| 19,19′ | 128.7 | 11.7 | 128.5 | 7.03, overlap | 0.81, t (6.3) | 7.19, brt (8.7) |
| 20 | 128.7 | 16.5 | 127.1 | 7.24, overlap | 0.70, d (6.8) | 7.07, overlap |
| 21 | 136.0 | 136.2 | 136.0 | |||
| 22,22′ | 128.2 | 128.2 | 128.2 | 7.46, overlap | 7.52, dd (7.7, 1.9) | 7.46, overlap |
| 23,23′ | 128.6 | 128.8 | 128.8 | 7.19, overlap | 7.39, t (6.9) | 7.39, overlap |
| 24 | 129.1 | 129.2 | 129.0 | 7.39, overlap | 7.41, overlap | 7.11, overlap |
| 26 | 172.1 | 172.8 | 172.3 | |||
| 27 | 66.5 | 70.4 | 66.1 | 2.69, m | 2.48, d (2.6) | 2.39, m |
| 28 | 37.5 | 35.8 | 37.6 | 2.67, m | 1.29, m | a 2.66, dd (13.8, 8.9) |
| b 1.72, dd (13.8, 11.2) | ||||||
| 29 | 138.1 | 24.7 | 138.2 | 1.08, m | ||
| 30 | 129.1 | 11.9 | 129.1 | 7.39, overlap | 0.77, t (7.4) | 7.00, brd (6.1) |
| 31 | 128.2 | 14.7 | 128.2 | 7.24, overlap | 0.55, d (6.8) | 7.26, overlap |
| 32 | 126.3 | 126.2 | 7.47, overlap | 7.22, overlap | ||
| 33 | 67.6 | a 3.83, br d (3.9) | ||||
| b 3.22, br d (3.9) | ||||||
| 34 | 67.1 | 67.0 | a 3.66, d (4.3) | a 3.56, d (4.7) | ||
| b 2.70, d (4.3) | b 2.43, d (4.7) | |||||
| 3-NH | 6.59, brs | 6.50, d (9.5) | 6.51, d (9.9) | |||
| 6-NH | 6.37, brd (8.5) | 5.81, d (8.5) | 6.40, d (8.1) | |||
| NMe | 39.8 | 41.1 | 39.5 | 1.64, s | 2.11, s | 1.48, s |