Table 2.
1H and 13C NMR data of schizol C (3) and schizol D (4) a,b.
| Position | 3 | 4 | ||
|---|---|---|---|---|
| δC, Type | δH, m (J in Hz) | δC, Type | δH, m (J in Hz) | |
| 1 | 154.7, C | 154.6, C | ||
| 2 | 107.1, CH | 6.60, dd (2.2, 2.2) | 107.1, CH | 6.60, dd (2.4, 2.0) |
| 3 | 159.0, C | 159.0, C | ||
| 4 | 112.9, CH2 | 6.45, br dd (1.8, 1.5) | 113.0, CH2 | 6.45, br dd (1.6, 1.6) |
| 5 | 145.8, C | 145.9, C | ||
| 6 | 113.6, CH | 6.64, br dd (1.8, 1.5) | 113.6, CH | 6.63, br dd (1.6, 1.6) |
| 1′ | 36.8, CH2 | 2.55, t (7.7) | 36.9, CH2 | 2.54, (t, 7.5) |
| 2′ | 32.1, CH2 | 1.66, m | 32.5, CH2 | 1.66, m |
| 3′ | 30.6, CH2 | 1.48, tt (7.7, 7.3) | 29.2, CH2 | 1.52, m |
| 4′ | 29.4, CH2 | 2.22, dt (7.3, 7.3) | 35.1, CH2 | 1.69, m |
| 5′ | 129.9, CH | 5.61, t (7.3) | 51.44, CH | 2.94, td (7.7, 2.0) |
| 6′ | 141.6, C | 51.37, CH | 2.95, td (7.7, 2.0) | |
| 7′ | 32.6, CH2 | 2.49, t (7.5) | 37.6, CH2 | 1.64, m |
| 8′ | 22.8, CH2 | 1.33, tq (7.7, 7.3) | 22.8, CH2 | 1.49, m |
| 9′ | 14.2, CH3 | 0.86, t (7.3) | 14.6, CH3 | 0.97, t (7.5) |
| 1′′ | 144.7, C | 149.01 c, C | ||
| 2′′ | 127.4, CH | 7.29, dd (8.1, 1.3) | 149.06 c, C | |
| 3′′ | 129.2, CH | 7.26, dd (8.1, 7.3) | 123.18 d, CH | 7.01, m |
| 4′′ | 127.4, CH | 7.16, tt (7.3, 1.3) | 127.95 e, CH | 7.10, m |
| 5′′ | 129.2, CH | 7.26, dd (8.1, 7.3) | 127.92 e, CH | 7.10, m |
| 6′′ | 127.4, CH | 7.29, dd (8.1, 1.3) | 123.07 d, CH | 7.01, m |
a 1H at 600 MHz, 13C at 150 MHz; b Assignments aided by COSY, HSQC, HMBC, and NOESY experiments; c–e Assignments marked with the same letter in the same column may be interchanged.