Structure and Absolute Configuration of Nyasol and Hinokiresinol via Synthesis and Vibrational Circular Dichroism Spectroscopy
作者:Peter R. Lassen、Dorthe Mondrup Skytte、Lars Hemmingsen、Simon Feldbæk Nielsen、Teresa B. Freedman、Laurence A. Nafie、S. Brøgger Christensen
DOI:10.1021/np0502995
日期:2005.11.1
The absolute configuration of the norlignan (+)-nyasol was determined to be S by comparison of the experimental vibrational circular dichroism data with first-principle calculations taking into account the eight lowest energy conformations. The established absolute configuration of (+)-nyasol enables establishment of the absolute configuration of (-)-hinokiresinol, which is concluded to be S. A total
通过将实验振动圆二色性数据与考虑到八个最低能量构象的第一原理计算进行比较,确定降丽寡糖(+)-nyasol的绝对构型为S。建立的(+)-nyasol绝对构型可以确定(-)-hinokiresinol的绝对构型,该构型最终定为S。已完成hinokiresinol的全合成和拆分,以解决与N偶联的常数的矛盾报道。该分子中双取代双键的乙烯基质子。外消旋的hinokiresinol得到解决。两种对映体均具有相同的抗血浆活性。