Crystal Structure and Conformation of an 2-Amino-1,3-thiazine Derivative

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Thiazine sugar derivative 2 was synthesized and characterized by IR=NMR and H RMS=and its crystal structure was determined by X-ray diffraction analysis.The crystal is of monoclinic system(C16H24N2O8S2=Mr=436.49) with space group P21=a=10.311(2)=b=9.1198(18)=c=11.623(2)=β=109.47(3)°=V=1030.4(4)3=Z=2=Dc=1.407 g/cm3=F(000)=460=μ=0.303 mm-1=the final R=0.0437 and wR=0.0561 for 1954 observed reflections(I > 2σ(I)).Nine hydrogen bonds were found.The absolute configuration of this molecule was confirmed by comparison with the original material. Thiazine sugar derivative 2 was synthesized and characterized by IR = NMR and H RMS = and its crystal structure was determined by X-ray diffraction analysis. The crystal is of monoclinic system (C16H24N2O8S2 = Mr = 436.49) with space group P21 = a = 10.311 (2) = b = 9.1198 (18) = c = 11.623  = β = 109.47 (3) ° = V = 1030.4 3 = Z = 2 = Dc = 1.407 g / cm3 = F (000 = 460 = μ = 0.303 mm-1 = the final R = 0.0437 and wR = 0.0561 for 1954 observed reflections (I> 2σ (I)). Nine hydrogen bonds were found. The absolute configuration of this molecule was confirmed by comparison the original material.
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