Preparation of a Spiroisoxazolinopiperidinylbenzamide-Based Scaffold
作者:Mark Kurth、Kristin Milinkevich
DOI:10.1055/s-0029-1218290
日期:2009.11
substitution reaction with 4-fluoro-3-nitrobenzoic acid to yield the starting scaffold 3 in excellent yields. Diversification of the acid with primary amines, followed nitrile oxide formation in situ (aryl oximes treated with bleach) and subsequent 1,3-dipolar cycloaddition to the exomethylene moiety delivered the spiroisoxazolinopiperdines. Reduction of the arylnitro group followed by acylation with acid