83694-49-9

Upstream product

• 67-56-1 methanol 
• 83686-34-4 ethyl 4-hydroxy-3-(2′,3′-O-isopropylidene-5′-O-trityl-α-D-ribofuranosyl)pyrazole-5-carboxylate 
• 102803-75-8 methyl 2-diazo-4-(2,3-O-isopropylidene-5-O-trityl-α-D-ribofuranosyl)-3-oxobutanoate 
• 54503-64-9 2,3-O-isopropylidene-5-O-trityl-D-ribofuranose 
• 83686-28-6 ethyl 4-(2′,3′-O-isopropylidene-5′-O-trityl-D-ribofuranosyl)-3-oxobutanoate 

Downstream Products

• 30868-30-5 pyrazofurin B 
• 30868-30-5 pyrazofurin 
• 83686-33-3 4-hydroxy-3-(2′,3′-O-isopropylidene-5′-O-trityl-β-D-ribofuranosyl)pyrazole-5-carboxamide 
• 90524-85-9 methyl 4-hydroxy-3-(2',3'-O-isopropylidene-5'-O-trityl-β-D-ribofuranosyl)pyrazole-5-carboxylate 
• 83686-35-5 4-hydroxy-3-(2',3'-O-isopropylidene-5'-O-trityl-α-D-ribofuranosyl)pyrazole-5-carboxamide 

Relevant academic research and scientific papers

SYNTHESIS OF PYRAZOFURINS: FURTHER CORRELATIONS BETWEEN CONFIGURATION-CONFORMATION AND (1)H-N.M.R. DATA FOR C-(2,3-O-ISOPROPYLIDENEGLYCOFURANOSYL) DERIVATIVES

Methyl 4-(2,3-O-isopropylidene-5-O-trityl-α- and -β-D-ribofuranosyl)-3-oxobutanoate (5α and 5β) were prepared in good yield by reacting 2,3-O-isopropylidene-5-O-trityl-D-ribofuranose with 3-methoxycarbonylacetonylidenetriphenylphosphorane catalysed by ben

Synthesis of Pyrazofurin and its Analogues

Pyrazofurin and its analogues have been synthesized fron ribosyl β-keto acid derivatives, which can be readily prepared by Wittig reaction of the protected D-ribose with phosphoranes.Reaction of 2,3-O-isopropylidene-5-O-trityl-α- and β-D-ribose (6) with 3

A Simple Synthesis of the Pyrazofurins

Pyrazofurin (1) and pyrazofurin B (2) have been synthesised from the β-keto ester (5), which can be readily prepared by Wittig reaction of the protected D-ribose (3) with the phosphorane (4).