Table 1.
NMR spectroscopic data for monogalactosyldiacylglycerol 1 in CD3OD, δ in ppm a.
| 1 | ||||
| No. | δC, mult. b | δH (J in Hz) | COSY | HMBC |
|---|---|---|---|---|
| 1, Gly | 64.5, CH2 | 4.25, dd (12.1, 6.3) | 3, 2 | 2, 1’ |
| 4.43, dd (12.1, 3.0) | ||||
| 2, Gly | 71.8, CH | 5.27, m | 1, 3 | |
| 3, Gly | 68.8, CH2 | 3.74, m | 2, 1 | 2, 1, 1‴ |
| 4.00, dd (10.7, 4.0) | ||||
| 1’ | 173.1, C | |||
| 2’ | 33.2, CH2 | 3.14, d (4.9) | 3’ | 1’, 3’, 4’ |
| 3’ | 132.6, CH | 5.55, t (4.9) | 2’ | |
| 4’ | 122.4, CH | 5.55, t (4.9) | 5’ | |
| 6’-7’ | 128.3/129.7, CH | 5.36, m | 5’/8’ | |
| 9’-10’ | 128.3/129.7, CH | 5.36, m | 8’/11’ | |
| 12’-13’ | 128.3/129.7, CH | 5.36, m | 11’/14’ | |
| 15’ | 129.3, CH | 5.36, m | 14’ | |
| 16’ | 132.9, CH | 5.36, m | 17’ | |
| 17’ | 21.6, CH2 | 2.09, quint (7.6) | 16’, 18’ | 15’, 16’, 18’ |
| 18’ | 14.7, CH3 | 0.98, t (7.6) | 17’ | 16’, 17’ |
| 5’ | 26.8c, CH2 | 2.84, m | 4’, 6’ | 3’, 4’, 6’, 7’ |
| 8’ | 26.7c, CH2 | 2.84, m | 7’, 9’ | 6’, 7’, 9’, 10’ |
| 11’ | 26.6c, CH2 | 2.84, m | 10’, 12’ | 9’, 10’, 12’, 13’ |
| 14’ | 26.6c, CH2 | 2.84, m | 13’, 15’ | 12’, 13’, 15’, 16’ |
| 1″ | 174.6, C | |||
| 2″ | 35.2, CH2 | 2.33, t (7.4) | 3″ | 1″, 3″, 4″ |
| 3″ | 26.1, CH2 | 1.61, m | 2″, 4″ | 1″, 2″, 4″ |
| 4″ | 30.6, CH2 | 1.33, m | 3″ | |
| 5″-11″ | 30.2-30.8, CH2 | 1.33, m | ||
| 12″ | 33.1, CH2 | 1.33, m | ||
| 13″ | 23.8, CH2 | 1.33, m | 14″ | 14″ |
| 14″ | 14.5, CH3 | 0.90, t (7.3) | 13″ | 12″, 13″ |
| 1‴ | 105.4, CH | 4.22, d (7.5) | 2‴ | 3, 2‴ |
| 2‴ | 72.5, CH | 3.52, m | 1‴ | 3‴ |
| 3‴ | 75.0, CH | 3.45, dd (9.7, 3.2) | 4‴ | 2‴ |
| 4‴ | 70.3, CH | 3.82, brd (3.2) | 3‴, 5‴ | 2‴ |
| 5‴ | 76.9, CH | 3.51, m | 4‴, 6‴ | 1‴, 4‴, 6‴ |
| 6‴ | 62.5, CH2 | 3.75, m | 5‴ | 4‴, 5‴ |
a 500 MHz for 1H NMR and 125 MHz for 13C NMR. b Numbers of attached protons were determined by analysis of two-dimensional (2D) and Distortionless Enhancement by Polarization Transfer (DEPT)-135 spectroscopic data. c Interchangeable carbons.