The crystal structure of the title compound (C18H24N4O7S, Mr=440.47) was prepared by the condensation of 2,3,4-tri-O-acetyl-β-D-xylopyranosyl isothiocyanate wi
Shandong is a coastal province and sea is the most i mportant advantage .At the ti me when socialist modern construc-tion of China is expediting,howto make the