Biomimetic Synthesis of Insulin Enabled by Oxime Ligation and Traceless 'C-Peptide' Chemical Excision

Autor: Vasily M. Gelfanov, Binbin Kou, Richard D. DiMarchi, Kishore Thalluri, John P. Mayer, Fa Liu
Rok vydání: 2017
Předmět:
Zdroj: Organic Letters. 19:706-709
ISSN: 1523-7052
1523-7060
DOI: 10.1021/acs.orglett.6b03876
Popis: For decades, insulin has represented a preeminent synthetic target. Recently introduced "biomimetic" strategies based on convertible single-chain precursors require incorporation of a chemical linker or a unique proteolytic site, which limits their practicality. In this approach the A- and B-chains are linked by two sequential oxime ligations followed by disulfide bond formation under redox conditions and linker excision by diketopiperazine (DKP) formation and ester hydrolysis, yielding native two-chain insulin. The method is expected to be applicable to any member of the insulin superfamily.
Databáze: OpenAIRE