In 2014,Usuki, Toyonobu; Sugimura, Takanori; Komatsu, Akira; Koseki, Yohei published 《Biomimetic Chichibabin Pyridine Synthesis of the COPD Biomarkers and Elastin Cross-Linkers Isodesmosine and Desmosine》.Organic Letters published the findings.Product Details of 71432-55-8 The information in the text is summarized as follows:
The tetrasubstituted pyridinium amino acids isodesmosine and desmosine are cross-linkers of elastin and are attractive biomarkers for the diagnosis of chronic obstructive pulmonary disease (COPD). In this study, the biomimetic total synthesis of isodesmosine and desmosine via a lanthanide-promoted Chichibabin pyridine synthesis using the corresponding aldehyde and amine hydrochloride is reported. The results came from multiple reactions, including the reaction of tert-Butyl N,N’-diisopropylcarbamimidate(cas: 71432-55-8Product Details of 71432-55-8)
tert-Butyl N,N’-diisopropylcarbamimidate(cas: 71432-55-8) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.Product Details of 71432-55-8
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics