Article ID Journal Published Year Pages File Type
5223395 Tetrahedron 2010 5 Pages PDF
Abstract

An unprecedented chiral spiropiperidine oxindole system was synthesized starting from enantiopure quaternary 3-aminooxindole and relying on a ring closing metathesis as the key step. This compound acts as an highly constrained Freidinger γ-lactam, adopting a type II β-turn conformation in solution, as assessed by modelling and spectroscopical studies.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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