Study of the structure of besulpamide, 1-[(4-chloro-3-sulfamoylbenzoyl)amino]2,4,6-trimethylpyridinium hydroxide inner salt, and related compounds, using X-Ray crystallography and<sup>1</sup>H and<sup>13</sup>C nuclear magnetic resonance spectroscopy
作者:Jordi Frigola
DOI:10.1002/jhet.5570260527
日期:1989.9
investigated by nmr spectroscopy and mass spectrometry. A mechanism for the formation of the salt 5 is proposed. The tautomerism of hydroxy derivatives of Besulpamide is discussed on the basis of nmr spectroscopy. The single-crystal X-ray investigation of Besulpamide, R = 0.038 (Rw = 0.041), showed two crystallographically independent molecular conformations in the crystal structure, space group P, a
利尿和降压药Besulpamide,1-[((4-氯-3-氨磺酰基苯甲酰基)氨基] -2,4,6-三甲基吡啶鎓氢氧化物内盐以及相关化合物已通过nmr光谱和质谱研究。提出了形成盐5的机理。在核磁共振光谱的基础上讨论了苯磺酰胺的羟基衍生物的互变异构现象。Besulpamide的单晶X射线研究R = 0.038(R w = 0.041),显示出晶体结构中两个晶体学上独立的分子构象,空间群P ,a = 8.485(3),b = 14.282(2),c= 15.312(6),α= 69.41(2),β= 82.22(4),γ= 72.78(3)。