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Synthesis and Crystal Structure of 7-((7S)-7-Aminospiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2S)-cis-2-fluorocyclopropyl)-4-oxo-1,4-dihydroqun-oline-3-carboxylic Acid Fumaric Acid Monohydra
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作者 孙海燕 佘能芳 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第7期1054-1058,共5页
A new compound [C19H19N3O3F2Cl·C4H3O4·H2O](I),(7-((7S)-7-aminospiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid fumaric acid mon... A new compound [C19H19N3O3F2Cl·C4H3O4·H2O](I),(7-((7S)-7-aminospiro[2.4]heptan-5-yl)-8-chloro-6-fluoro-1-((1R,2S)-2-fluorocyclopropyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid fumaric acid monohydrate), was synthesized and structurally characterized by single-crystal X-ray diffraction, ^1H NMR, 14 C spectra and mass spectra. I crystallizes in monoclinic, space group P21/c with a = 8.495(2), b = 12.545(3), c = 11.832(3) A, β = 103.37(1)°, V = 1226.8(5) A^3, Z = 2, Mr = 543.90, Dc = 1.472 g/cm^3, F(000) = 564, μ = 0.225 mm^-1, the final R = 0.0307 and wR = 0.0892 for 6886 observed reflections with I 〉 2σ(I). X-ray diffraction analysis reveals that the quinolinone ring is almost coplanar, and the pyrrole ring adopts an envelope form. Packing of crystal I is constructed and stabilized by the N–H…O, O–H…O and N–H…Cl hydrogen bonds together with C–H…π interations. 展开更多
关键词 sitafloxacin synthesis crystal structure
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