Investigation on the flexibility of chiral tricyclic derivatives
作者:Maria Altamura、Paolo Dapporto、Antonio Guidi、Nicholas J. S. Harmat、Loïc Jierry、Elisa Libralesso、Paola Paoli、Patrizia Rossi
DOI:10.1039/b801569d
日期:——
In the perspective of generating libraries for broad screening purposes, the inversion barrier of enantiomeric conformers of various tricyclic compounds, characterized by a seven-membered ring featuring a lactam group with two aromatics condensed at its opposite sides, has been investigated by ab initio calculations and NMR spectroscopy. Solid-state structure characterizations by single-crystal X-ray
从产生用于广泛筛选目的的文库的角度出发,已通过从头算算研究了各种三环化合物的对映异构构象异构体的转化障碍,其特征在于具有内酰胺基的七元环,其内侧面有两个芳香族缩合的内酰胺基。核磁共振波谱。固态结构表征单晶X射线衍射也已经进行了。目的是评估是否从醚 到 硫化物 和 砜类衍生物,导致消旋化障碍发生变化。研究范围也扩大到了硫内酰胺同类物。研究了结构和电子效应对反演过程的能量学和证明的结构-性质关系的影响。结果表明,相对于相应的S / SO 2化合物,氧代衍生物的环转化更容易。还酰胺 相对于相应的硫代酰胺分子,分子总体上具有更小的屏障。