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Intramolecular Hydrogen Bonding in Bilirubin Monomethyl Esters Determined by1H-NMR Spectroscopy

 

作者: D.A. Lightner,   J.-S. Ma,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1984）
卷期: Volume 17, issue 4-5  

页码: 317-327

 

ISSN:0038-7010

 

年代: 1984

 

DOI:10.1080/00387018408062689

 

出版商: Taylor & Francis Group

 

关键词: Bilirubin Monomethyl Esters;Intramolecular;H-Bonding;1H-NMR

 

数据来源: Taylor

 

摘要:

Analysis of the N-H1H-NMR chemical shifts of the monomethyl esters of bilirubin-IIIα, IXα and XIIIα reveals a preference in CDCl3for folded conformations in which the unesterified propionic acid carboxyl group is intramolecularly H-bonded to the opposing pyrromethenone unit. The remaining pyrromethenone unit may be weakly intramolecularly H-bonded to the propionic ester carbomethoxy group.

 

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