337903-73-8

Upstream product

• 108-24-7 acetic anhydride 
• 150631-07-5 benzyl N-(9-fluorenylmethoxycarbonyl)-O-(3,4,6-tri-O-acetyl-2-deoxy-2-[(2,2,2-trichloroethyloxycarbonyl)amino]-β-D-glucopyranosyl)-L-serinate 
• 118358-66-0 N-(9-fluorenylmethyloxycarbonyl)-L-serine benzyl ester 
• 3068-34-6 Acetic acid (2R,3S,4R,5R,6R)-3-acetoxy-2-acetoxymethyl-5-acetylamino-6-chloro-tetrahydro-pyran-4-yl ester 
• 1078691-95-8 (+)-D-glucosamine hydrochloride 
• 122210-01-9 1,3,4,6-tetra-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-D-glucopyranose 
• 172490-46-9 2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-D-glucopyranose 
• 67124-60-1 3,4,6-Tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl bromide 

Downstream Products

• 160067-63-0 N^α-(9-flourenylmethoxycarbonyl)-3-O-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-Β-D-glucopyranosyl)-L-serine 
• 1174725-65-5 (2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-β-D-glucopyranosyl)-L-serine benzyl ester 

Relevant academic research and scientific papers

Novel and facile solution-phase synthesis of 2,5-diketopiperazines and O-glycosylated analogs

This work describes the synthesis in solution of a series of related diketopiperazines with potential biological activities: cyclo(l-Pro-l-Ser), cyclo(l-Phe-l-Ser), cyclo(d-Phe-l-Ser) and the corresponding glycosylated analogs of the latter, cyclo[d-Phe-l

Practical synthesis of the 2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucosides of Fmoc-serine and Fmoc-threonine and their benzyl esters

Mercuric bromide-promoted glycosylation of Fmoc-Ser-OBn and Fmoc-Thr-OBn with 2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-α-D-glucopyranosyl chloride in refluxing 1,2-dichloroethane gave the corresponding β-glycosides in good yields (64 and 62%, respectively).

Solid-phase synthesis of O-linked glycopeptide analogues of enkephalin

The synthesis of 18 N-α-FMOC-amino acid glycosides for solid-phase glycopeptide assembly is reported. The glycosides were synthesized either from the corresponding O'Donnell Schiff bases or from N-α-FMOC-amino protected serine or threonine and the appropriate glycosyl bromide using Hanessian's modification of the Koenigs-Knorr reaction. Reaction rates of D-glycosyl bromides (e.g., acetobromoglucose) with the L- and D-forms of serine and threonine are distinctly different and can be rationalized in terms of the steric interactions within the two types of diastereomeric transition states for the D/L and D/D reactant pairs. The N-α-FMOC-protected glycosides [monosaccharides Xyl, Glc, Gal, Man, GlcNAc, and GalNAc; disaccharides Gal-β(1-4)-Glc (lactose), Glc-β(1-4)-Glc (cellobiose), and Gal-α(1-6)-Glc (melibiose)] were incorporated into 22 enkephalin glycopeptide analogues. These peptide opiates bearing the pharmacophore H-Tyr-c[DCys-Gly-Phe-DCys]- were designed to probe the significance of the glycoside moiety and the carbohydrate-peptide linkage region in blood-brain barrier (BBB) transport, opiate receptor binding, and analgesia.