Synthesis, complete NMR spectral assignments, and antifungal screening of new 2,4-diaryl-3-azabicyclo[3.3.1]nonan-9-one oxime derivatives
作者:Paramasivam Parthiban、Paramasivam Rathika、Keun Soo Park、Yeon Tae Jeong
DOI:10.1007/s00706-009-0221-8
日期:2010.1
AbstractA series of differently substituted 2,4-diaryl-3-azabicyclo[3.3.1]nonan-9-one oximes have been synthesized and their 1H and 13C NMR chemical shifts have been unambiguously assigned using H,H-COSY, NOESY, HSQC, and HMBC spectral data. On the basis of the NMR studies, irrespective of the nature and position of the substituents, all reported compounds exist in twin-chair conformation with equatorial
摘要合成了一系列不同取代的2,4-二芳基-3-氮杂双环[3.3.1]壬南-9-肟,并使用H,H-COSY,NOESY明确分配了它们的1 H和13 C NMR化学位移,HSQC和HMBC光谱数据。根据NMR研究,无论取代基的性质和位置如何,所有报道的化合物均以双椅构型存在,且3-氮杂双环壬烷部分的C-2和C-4处的苯基呈赤道排列。在合成的肟衍生物中,在苯基的邻位/对位带有卤素取代基的化合物对所有测试的生物均显示出良好的抗真菌特性。 图形概要