Tetrahedron

Synthesis and unusual properties of expanded bilirubin analogs

DF Nogales, DT Anstine, DA Lightner

Index: Nogales, Daniel F.; Timothy Anstine; Lightner, David A. Tetrahedron, 1994 , vol. 50, # 29 p. 8579 - 8596

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Citation Number: 20

Abstract

Pentapyrrole analogs of bilirubin and biliverdin have been prepared along with corresponding analogs where two dipyrrinones are attached to p-xylyl and m-xylyl groups. As determined by spectroscopic analysis and molecular modelling, the “expanded” yellow bilirubin analogs are able to adopt intramolecularly hydrogen bonded conformations.