Solid-Phase Synthesis of Monocyclic β-Lactam Derivatives
摘要:
Liquid-phase studies concerning the solid-phase synthesis of monocyclic beta-lactams via the esterenolate imine condensation route have been conducted utilizing triazene esters 1 and 2 as model compounds. Esters were attached to benzylamine resin 6 by a triazene linker employing the respective diazonium salts. Immobilized ester-enolates 8 and 10 were reacted with various imines and imine precursors to give polymer-bound beta-lactams 14 and 17 in different substitution patterns. Traceless cleavage from the triazene linker yields the desired beta-lactams 16 and 19.
Solid-Phase Synthesis of Monocyclic β-Lactam Derivatives
作者:S. Schunk、D. Enders
DOI:10.1021/jo0261552
日期:2002.11.1
Liquid-phase studies concerning the solid-phase synthesis of monocyclic beta-lactams via the esterenolate imine condensation route have been conducted utilizing triazene esters 1 and 2 as model compounds. Esters were attached to benzylamine resin 6 by a triazene linker employing the respective diazonium salts. Immobilized ester-enolates 8 and 10 were reacted with various imines and imine precursors to give polymer-bound beta-lactams 14 and 17 in different substitution patterns. Traceless cleavage from the triazene linker yields the desired beta-lactams 16 and 19.