Synthesis and Crystal Structure of 2,3,4,6-Tetra-O-acetyl-1-{2-(4-nitrophenoxy)methyl-1,3, 4-thiadiazole-5-thione-4-yl}-1-deoxy-β-D-glucopyranose

摘要

The title compound has been synthesized and its crystal structure was determined by single-crystal X-ray diffraction.The crystal is of orthorhombic system (C23H25N3O12S2,Mr=599.58),space group P212121 with a=6.2102(12),b=17.803(4),c=24.223(5),V=2678.0(9)3,Z=4,Dc=1.487 g/cm3,F(000)=1248,μ=0.268 mm-1,the final R=0.0483 and wR=0.1108 for 4174 observed reflections (I > 2σ(I)).The C=S bond,which parallels to the anomeric C-H,adopts α orientation relative to the anomeric position of glucopyranoside.