443916-49-2

Upstream product

• 95715-87-0 (R)-3-tert-butoxycarbonyl-4-formyl-2,2-dimethyloxazolidine 
• 443916-44-7 4-acetamido-3,7-anhydro-5,6,8-tri-O-benzyl-1,2,4-trideoxy-D-glycero-D-ido-oct-1-ynitol 

Downstream Products

• 443916-55-0 (R)-4-[3-((2R,3S,4R,5S,6R)-3-Acetylamino-4,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-1-hydroxy-propyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester 
• 443916-20-9 7-acetamido-6,10-anhydro-8,9,11-tri-O-benzyl-2,3,4,5,7-pentadeoxy-1,2-N,O-isopropylidene-2-(tert-butoxycarbonylamino)-D-erythro-L-gulo-undecitol 

Relevant academic research and scientific papers

Synthesis of α- and β-glycosyl asparagine ethylene isosteres (C-glycosyl asparagines) via sugar acetylenes and Garner aldehyde coupling

A convergent approach has been developed for the synthesis of C-glycosyl amino acids in which the glycinyl moiety CH(NH2)CO2H is connected to the anomeric center of the sugar residue by a three carbon atom tether. Essentially, these compounds are isosteres of N-glycosyl asparagines in which the amide group has been replaced by an ethylene bridge. Following the coupling of α- or β-D-linked lithium C-glycoside acetylides with N-Boc D-serinal acetonide (Garner aldehyde), the resulting adducts were transformed into the final N-Boc-C-glycosyl-α-aminopentanoic acids via reduction of the triple bond, deoxygenation, and oxidative cleavage of the oxazolidine ring. By this protocol, 12 C-glycosyl asparagines, six pairs of α- and β-anomers, have been prepared incorporating the gluco, galacto, manno, and the corresponding 2-acetamido-2-deoxy residues.