Chiral Helicity Induced by Hydrogen Bonding and Chirality of Podand Histidyl Moieties
作者:Toshiyuki Moriuchi、Masahito Nishiyama、Kazuhiro Yoshida、Takuji Ishikawa、Toshikazu Hirao
DOI:10.1021/ol0100327
日期:2001.5.1
D-isomer (D-BHisPA) derived from the corresponding chiral histidine revealed a left- and right-handed helical conformation, respectively, through intramolecular hydrogen bonding and chirality of the podand histidyl moieties. Furthermore, each helical molecule is connected by continuous intermolecular hydrogen bonds to afford a left- or right-handed helical assembly, respectively, in the crystal packing
[结构:见正文] N,N'-双[(S)-(+)-1-甲氧羰基-2-(4-咪唑基)乙基] -2,6-吡啶二甲酰胺的单晶X射线结构测定(L-BHisPA)和衍生自相应手性组氨酸的D-异构体(D-BHisPA)通过分子内氢键和豆荚和组氨酸基团的手性分别显示出左旋和右旋螺旋构象。此外,每个螺旋分子通过连续的分子间氢键连接以在晶体堆积中分别提供左旋或右旋螺旋组装。