Table 2.
DEPT-Q (400 MHz) and 1H (100 MHz) NMR data for the sugar moieties and attached acids of compounds 1, 2, 3 in DMSO-d6; Carbon multiplicities were determined by the DEPT-Q experiments.
| Moiety | Position | 1 | 2 | 3 | |||
|---|---|---|---|---|---|---|---|
| δC | δH (J in Hz) | δC | δH (J in Hz) | δC | δH (J in Hz) | ||
| Arab | 1ˋ | 104.2, CH | 4.26, d (6.2) | 104.6, CH | 4.26, d (6.2) | 104.3, CH | 4.26, d (6.2) |
| 2ˋ | 71.5, CH | 3.73, m | 71.5, CH | 3.73, m | 71.5, CH | 3.73, m | |
| 3ˋ | 82.7, CH | 3.70, m | 82.7, CH | 3.70, m | 82.3, CH | 3.70, m | |
| 4ˋ | 67.9, CH | 3.87, m | 67.9, CH | 3.87, m | 67.6, CH | 3.87, m | |
| 5ˋ | 65.1, CH2 | 3.68, 3.39 | 65.1, CH2 | 3.68, 3.39 | 64.7, CH2 | 3.68, 3.39 | |
| Fuc | 1ˋˋ | 100.3, CH | 5.32, s | 100.7, CH | 5.32, s | 100.5, CH | 5.32, s |
| 2ˋˋ | 70.6, CH | 3.61, m | 70.6, CH | 3.61, m | 70.6, CH | 3.61, m | |
| 3ˋˋ | 65.7, CH | 3.60, m | 65.7, CH | 3.60, m | 65.3, CH | 3.60, m | |
| 4ˋˋ | 72.4, CH | 3.60, m | 72.4, CH | 3.60, m | 72.4, CH | 3.60, m | |
| 5ˋˋ | 66.8, CH | 4.11, m | 66.8, CH | 4.11, m | 66.5, CH | 4.11, m | |
| 6ˋˋ | 17.1, CH3 | 1.06, d, (6.0) | 17.1, CH3 | 1.06, d, (6.0) | 17.1, CH3 | 1.06, d, (6.0) | |
| Glu | 1ˋˋˋ | 103.4, CH | 4.32, d, (8.0) | 103.8, CH | 4.32, d, (8.0) | 103.5, CH | 4.32, d, (8.0) |
| 2ˋˋˋ | 73.7, CH | 3.51, m | 73.2, CH | 3.51, m | 73.2, CH | 3.51, m | |
| 3ˋˋˋ | 74.7, CH | 3.86, m | 75.0, CH | 3.86, m | 77.1, CH | 3.86, m | |
| 4ˋˋˋ | 74.4, CH | 4.62, m | 74.0, CH | 4.65, m | 70.0, CH | 3.50, m | |
| 5ˋˋˋ | 74.2, CH | 3.50, m | 74.6, CH | 3.50, m | 77.0, CH | 3.50, m | |
| 6ˋˋˋ | 61.2, CH2 | 3.58, 3.70, m | 61.2, CH2 | 3.58, 3.70, m | 60.8, CH2 | 3.58, 3.70, m | |
| Coumaroyl | 1ˋˋˋˋ | 125.5, qC | 125.9, qC | ||||
| 2ˋˋˋˋ, 6ˋˋˋˋ | 133.6, CH | 7.59, d, (8.0) | 130.4, CH | 7.56, d, (8.0) | |||
| 3ˋˋˋˋ, 5ˋˋˋˋ | 115.9, CH | 6.78, d, (8.0) | 115.0, CH | 6.81, d, (8.0) | |||
| 4ˋˋˋˋ | 159.0, qC | 165.1, qC | |||||
| 7ˋˋˋˋ | 145.2, CH | 7.70, d, (16.0) | 143.8, CH | 7.70, d, (16.0) | |||
| 8ˋˋˋˋ | 114.2, CH | 6.35, d, (16.0) | 115.3, CH | 6.35, d, (16.0) | |||
| 9ˋˋˋˋ | 164.6, qC | 166.0, qC | |||||
| Oxaloyl | 1ˋˋˋˋˋ | 159.0, qC | |||||
| 2ˋˋˋˋˋ | 174.7, qC | ||||||
qC quaternary, CH methine, CH2 methylene, CH3 methyl carbons, Glc β-D-glucopyranosyl, Ara α-L-arabinopyranosyl, Fuc β-D-fucopyranosyl.