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Lacto-N-tetrose

These assignments are confirmed by the HH TOCSY diagram b and the selective one-dimensional experiment on top of b with the H NMR subspectrum of the 2-iV-acetylamino-2-deoxygluco-pyranosyl- residue. [Pg.226]

To conclude, the sequence of sugars is Gal -pi-3-GlcNac-pi-3-GaI -pi-4-Sorbitol (peracetyla-ted)  [Pg.226]

Additionally, all carbon-proton bonds can be assigned by means of the HC HSQC experiment b  [Pg.226]

The Jhh coupling constants 8.2, 8.0, and 8.4 Hz) of the anomeric protons i-H, 5h= 5.14, 4.57, and 4.44) reveal a diaxial configuration of the protons attached to C-1 and C-2 in all pyranose units, reflecting three (3-glycosidic linkages. The connectivities found in the HH COSY diagram a [Pg.225]

Finally, the structure of the original (genuine) tetrasaccharide (before acetylation and reduction) is Gal -pi-3-GlcNac-pl-3-Gal -pl-4-Glc, known as Lacto-A-tetrose  [Pg.226]

See other pages where Lacto-N-tetrose is mentioned: [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.225]    [Pg.586]   
See also in sourсe #XX -- [ Pg.226 ]



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Tetroses

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