Eckstein,Z. et al., Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences Chimiques, 1960, vol. 8, p. 623 - 628
作者:Eckstein,Z. et al.
DOI:——
日期:——
Clean five-step synthesis of an array of 1,2,3,4-tetra-substituted pyrroles using polymer-supported reagents
作者:Marina Caldarelli、Jörg Habermann、Steven V. Ley
DOI:10.1039/a809345h
日期:——
Polymer-supported reagents and other solid sequestering agents may be used to generate an array of 1,2,3,4-tetra-substituted pyrrole derivatives without any chromato-graphic purification step.
Fluorophenyl Bilirubins: Synthesis and Stereochemistry
作者:Justin O. Brower、David A. Lightner
DOI:10.1007/s007060170010
日期:2001.12
Analogs of bilirubin with vinyl groupsreplaced by symmetrically-disposed o -fluorophenyls ( 1 , bis - exo , and 2 , bis - endo ) were synthesized and characterized spectroscopically. Their 1H NMR spectra and NOE data are consistent with an intramolecularly hydrogen-bonded ridge-tile conformation where each propionicacidgroup embraces an opposing dipyrrinone. Like bilirubin, 1 and 2 exhibit negative
合成并用光谱学方法表征了 被对称放置的 邻 氟苯基( 1 , bis - exo 和 2 , bis - end )取代的乙烯基的胆红素类似物 。他们的1 H NMR光谱和NOE数据与分子内氢键键合的脊-瓦构象相符,其中每个丙酸基团都包含一个相对的二吡啶酮。像胆红素一样, 1 和 2 表现出负手性诱导的圆二色性(ICD) 棉 在含氯仿的奎宁中起作用。不像胆红素,但是,在水性缓冲液中含有人血清白蛋白, 2所 表现出负激子手性ICD,而其的 1 是正的。