TABLE 4.
Proton | Value for chemical shift (ppm)
|
|
---|---|---|
GlcN I | Fatty acid | |
H-1 | 6.01b | |
H-2 | 4.68 | |
H-3 | 5.64 | |
H-4 | 3.98 | |
H-5 | 4.19 | |
H-6a | 4.39 | |
H-6b | 4.10 | |
2-NH | 8.12 | |
4-OH | 5.86 | |
Hα1 | 2.53 | |
Hα2 | 2.58 | |
Hα3 | 2.69 | |
Hα4 | 2.79 | |
Hβ1 | 4.19 | |
Hβ2 | 4.27 | |
Hβ3 | 4.28 | |
Hβ4 | 5.64 | |
Hβ1-OH | 4.82 | |
Hβ2-OH | 4.92 | |
Hβ3-OH | 4.96 |
Spectra were recorded at 600 MHz in C6D6–(CD3)2 SO (9:1) relative to TMS (0.00 ppm). Assignments were made by field gradient 1H,1H-COSY NMR. Chemical shifts for the nonreducing terminal unit were not clearly assigned because of heterogeneity.
J = 3.12 Hz.