Facile synthesis of 7-alkyl-1,2,3,4-tetrahydro-1,8-naphthyridines as arginine mimetics using a Horner–Wadsworth–Emmons-based approach

Autor: Tim N. Barrett, John A. Murphy, Rhys A. Lippa
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 1617-1626 (2020)
ISSN: 1860-5397
Popis: Integrin inhibitors based on the tripeptide sequence Arg–Gly–Asp (RGD) are potential therapeutics for the treatment of idiopathic pulmonary fibrosis (IPF). Herein, we describe an expeditious three-step synthetic sequence of Horner–Wadsworth–Emmons olefination, diimide reduction, and global deprotection to synthesise cores for these compounds in high yields (63–83% over 3 steps) with no need for chromatography. Key to this transformation is the phosphoramidate protecting group, which is stable to metalation steps.
Databáze: OpenAIRE