TY - JOUR TI - {Synthesis of N4-aryl-$\beta$-d-glucopyranosylcytosines: a methodology study} AU - Michael Mamais AU - Virginia Kouloumoundra AU - Eugenia Smyrli AU - Paschalis Grammatopoulos AU - Evangelia D. Chrysina AU - Thanasis Gimisis JO - TETRAHEDRON LETTERS PY - 2015 VL - 56 TODO - 41 SP - 5549--5552 PB - ELSEVIER BV SN - 0040-4039 TODO - 10.1016/j.tetlet.2015.08.037 TODO - Microwaves,N4,[Arylamines TODO - {\textcopyright} 2015 Elsevier Ltd. All rights reserved.A number of leaving groups, including arylsulfonates, triazoles, 3-nitrotriazoles, and tetrazoles, have been studied for the substitution reaction by aryl and alkyl amines at the 4-position of $\beta$-D-glucopyranosyluracils. Examination of the stability, ease of purification and reactivity in the substitution reaction led to a number of optimized conditions with the most convenient involving substitution of triazole derivatives under microwave conditions in the presence of silica gel. Under these conditions, a number of N4-aryl-substituted $\beta$-D-glucopyranosylcytosines were prepared as potential inhibitors of glycogen phosphorylase, a molecular target for type-2 diabetes mellitus. ER -