175655-97-7

Upstream product

• 175655-96-6 methyl 3-azido-3-deoxy-2-O-(p-tolylsulfonyl)-β-D-xylofuranoside 
• 175655-95-5 Toluene-4-sulfonic acid (2R,3R,4S,5S)-4-azido-2-methoxy-5-trityloxymethyl-tetrahydro-furan-3-yl ester 
• 923600-35-5 methyl 2,3-O-sulfinyl-5-O-triphenylmethyl-β-D-ribofuranoside 
• 175655-94-4 methyl 3-azido-3-deoxy-5-O-triphenylmethyl-β-D-xylofuranoside 
• 50908-04-8 (-)-Methyl-5-O-trityl-β-D-ribofuranosid 

Relevant academic research and scientific papers

Synthesis of optically pure 3,4-disubstituted L-glutamases from a novel 2,3-aziridino-γ-lactone 4-carboxylate derivative

The synthesis of the N-acetyl and N-Cbz derivatives of (1S,4S,5R)-4-(methoxycarbonyl)-3-oxa-6-azabicyclo[3.1.0]hexan-2-one (24 and 27, respectively) from D-ribose is described. While compound 24 reacted with methanol in the presence of boron trifluoride etherate to give the novel 2,3-iminoglutamate derivative 28, compound 27 afforded, under the same conditions, the 4(S)-hydroxy-3(S)-methoxy-L-glutamate 31. Similarly, reaction of 27 with ethanol and benzyl alcohol gave the corresponding 3(S)-ethoxy and 3(S)-(benzyloxy) analogues of 31. This represents the first example of the use of a carbohydrate for the preparation of L-glutamate derivatives as well as the first example of a stereocontrolled synthesis of glutamate analogues dissymmetrically substituted at the β,γ-positions.