116144-00-4Relevant academic research and scientific papers
Synthesis of monomethyl derivatives of p-nitrophenyl α-d-gluco, galacto, and mannopyranosides and their hydrolytic properties against α-glycosidases
Hakamata, Wataru,Nishio, Toshiyuki,Sato, Reiko,Mochizuki, Takahiro,Tsuchiya, Kazuya,Yasuda, Maki,Oku, Tadatake
, p. 359 - 377 (2007/10/03)
All possible monomethyl derivatives of p-nitrophenyl α-D-gluco, galacto, and mannopyranosides were synthesized. Hydrolytic activities of α-glucosidase (rice), α-galactosidases (green coffee bean, Mortierella vinacea, and Aspergillus niger), and α-mannosidases (almond and jack bean) against them were elucidated. The 6-O-methyl galactopyranoside and mannopyranoside were hydrolyzed by the M. vinacea α-galactosidase and the almond and jack bean α-mannosidases, respectively, while these enzymes did not act on the 2-, 3-, and 4-O-methyl derivatives. On the other hand, rice α-glucosidase and green coffee bean and A. niger α-galactosidases had no hydrolyzing activities at all against the respective four monomethylated substrates.
AMMONOLYSIS OF PENTA-O-BENZOYL-α-D-GLUCOPYRANOSE IN AN APROTIC MEDIUM. CHARACTERIZATION OF THE PRODUCTS ISOLATED, AND CONFORMATIONAL ANALYSIS OF ELEVEN N-BENZOYL-D-GLUCOFURANOSYLAMINE DERIVATIVES
Salinas, Amelia E.,Sproviero, Jorge F.,Deulofeu, Venancio
, p. 71 - 99 (2007/10/02)
The reaction of penta-O-benzoyl-α-D-glucopyranose with chloroform-1,4-dioxane-liquid ammonia gave 1,1-bis(benzamido)-6-O-benzoyl-1-deoxy-D-glucitol (29.0percent), three partially benzoylated derivatives of N-benzoyl-α-D-glucofuranosylamine (23.6percent), a small proportion of N-benzoyl-di-O-benzoyl-β-D-glucofuranosylamine (0.2percent), and four partially benzoylated derivatives of α-D-glucopyranose (9.9percent).The structures of the hitherto-unknown products, and their anomeric configurations, were established by chemical and spectroscopic methods.The conformations in solution of both anomers of N-benzoyl-D-glucofuranosylamine, their partially benzoylated derivatives isolated from the ammonolysis reaction, and the per-O-acetyl derivatives of the various compounds were analyzed by (1)H-n.m.r.spectroscopy.
