260804-79-3Relevant academic research and scientific papers
Flexible Synthesis and Biological Activity of Uronic Acid-Type gem-Diamine 1-N-Iminosugars: A New Family of Glycosidase Inhibitors
Nishimura, Yoshio,Shitara, Eiki,Adachi, Hayamitsu,Toyoshima, Minako,Nakajima, Motowo,Okami, Yoshiro,Takeuchi, Tomio
, p. 2 - 11 (2007/10/03)
An efficient and flexible synthetic route to four gem-diamine 1-N-iminosugars of uronic acid-type (D-glucuronic, D-mannuronic, L-iduronic, and L-guluronic acid), a new family of glycosidase inhibitor, from l-galactono-1,4-lactone have been developed in an enantiodivergent fashion through a sequence involving as the key steps (a) the formation of gem-diamine 1-N-iminopyranose ring by the Mitsunobu reaction of an aminal and (b) the introduction of a carboxylic acid group by the Wittig reaction of a ketone, hydroboration and oxidation, and the Sharpless oxidation. D-Glucuronic and D-mannuronic acid-type 1-N-iminosugars, (3S,4R,5R,6R)- and (3S,4R,5R,6S)-4,5-dihydroxy-6-trifluoroacetamido-3-piperidinecarboxylic acid, were proven to be potent inhibitors for β-D-glucuronidase (IC50 6.5 × 10-8M) and to affect human heparanase (endo-β-glucuronidase).
