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/ β-D-Glc-Ethyl-Amine / β-Glc-Et-NH2
which is yellow under basic conditions (absorbance maximum ~405 nm)
/ β-D-GalNAc-Ethyl-Azide (Peracetate) / β-GalNAc(Ac)3-Et-N3
/ Fmoc-Ser(Galβ(1-3)(GlcNAcβ(1-6))GalNAc-OH (Peracetate) / Core 2 O-Glycan on Serine
Sialyl Tn or STn (Neu5Acα2-6GalNAcα-O-Ser) at Ser140
GA131025: Fmoc-Thr(GlcNAcβ(1-3)GalNAc)-OH (Peracetate) Pack Size:250 mg / β-D-Glc-Ethyl-Amine / β-Glc-Et-NH2C45H55N3O20 957. 93 An Fmoc protected L threonine building block carrying a GlcNAc1 3GalNAc disaccharide, designed for solid phase peptide synthesis (SPPS) of glycopeptides. The N Fmoc group is removed under standard base conditions (piperidine) during chain elongation, while the free carboxylic acid is available for coupling to the growing resin bound peptide. The sugar hydroxyl groups are protected as acetate esters (peracetate), which keep the
