Chiral Indolizinium Salts Derived from 2-Pyridinecarbaldehyde—First Diastereoselective Syntheses of (−)-1-epi-lentiginosine

Autor: Hisami Rodriguez-Matsui, David M. Aparicio, María L. Orea, Jorge R. Juárez, Victor Gómez-Calvario, Dino Gnecco, Alan Carrasco-Carballo, Joel L. Terán
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Molecules, Vol 28, Iss 9, p 3719 (2023)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules28093719
Popis: The first diastereoselective synthesis of (−)-1-epi-lentiginosine from a common chiral trans-epoxyamide derived from 2-pyridincarbaldehyde is reported. This methodology involves a sequential oxirane ring opening and intramolecular 5-exo-tet cyclization of tosylate trans-epoxyalcohol to afford a diastereomeric mixture of indolizinium salts in a one-pot fashion, followed by regio- and diastereospecific pyridinium ring reduction.
Databáze: Directory of Open Access Journals
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