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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 with 4,6-dimethylpyrimidin-2-amine and structurally determined by single-crystal X-ray diffraction. The crystal belongs to the monoclinic system, space group P21 with a=7.5500(17), b=10.498(2), c=14.208(3), β=99.929(4)o, V=1109.2(4)3, Z=2, Dc=1.319 g/cm3, μ=0.191, F(000)=464, Flack= 0.00(15), R=0.0684 and wR=0.1103. In the crystal structure, the xylose ring adopts a 4C1 chair conformation. Due to the hydrogen bonding interaction between N(4)-H(4A) and N(1), the pyrimidine ring is well positioned.
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 with 4,6-dimethylpyrimidin-2-amine and structurally The crystal belongs to the monoclinic system, space group P21 with a = 7.5500 (17), b = 10.498 (2), c = 14.208 (3) Flak = 0.00 (15), R = 0.0684 and wR = 0.1103. In the equation (1), V = 1109.2 (4) 3, Z = 2, Dc = 1.319 g / cm3, μ = 0.191, F (000) = 464, crystal structure, the xylose ring adopt a 4C1 chair conformation. Due to the hydrogen bonding interaction between N (4) -H (4A) and N (1), the pyrimidine ring is well positioned.