Table 2. 1H (700 MHz) NMR Data of Compounds 6–8 in CDCl3.
| 6 | 7 | 8 | |
|---|---|---|---|
| position | δH, mult., J in Hz | δH, mult., J in Hz | δH, mult., J in Hz |
| 1 | |||
| 2 | 3.77, bs | 3.78, s | 4.63, bd, 10.6 |
| 3 | 3.96, bd, 12.2 | 3.08, t, 10.6 | |
| 4 | 3.10, ddd, 12.5, 12.2, 3.5 | 3.31, ddd, 11.0, 10.6, 3.5 | |
| 5a | 1.61a | 2.33a | 1.45a |
| 5b | 1.83a | 2.66a | 1.78a |
| 6a | 1.62a | 1.75a | 2.35a |
| 6b | 1.97a | 2.06a | |
| 7a | 1.30, s | 1.37, s | 4.85, s |
| 7b | 5.08, s | ||
| 8 | |||
| 9a | 4.49, bs | 4.76, bs | 4.49, bs |
| 9b | 4.75, bs | 4.78, bs | 4.65, bs |
| 10 | 1.55, s | 1.66, s | 1.56, s |
| 1′ | |||
| 2′ | 6.12, s | 6.30, s | 6.09, s |
| 3′ | |||
| 4′ | 6.29, s | 6.31, s | 6.20, s |
| 5′ | |||
| 6′ | |||
| 1″ | 2.43, t, 7.2 | 2.48, t, 7.2 | 2.41, m |
| 2″ | 1.57a | 1.60a | 1.56a |
| 3″ | 1.31a | 1.31a | 1.33a |
| 4″ | 1.33a | 1.34a | 1.31a |
| 5″ | 0.87, t, 7.0 | 0.88, t, 7.0 | 0.89, t, 7.0 |
Overlapped.