• 약학회지
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• 제47권5호
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• pp.283-287
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• 2003

Isoflavonoids are abundant in natural products and reported with many synthetic variations. However, relatively few quinolone analogs of isoflavonoids have been described. As part of our endeavor to pursue biologically active novel isoflavonoids, we report an efficient synthetic route for quinolone analogs of isoflavonoids. The key intermediate, 2'-aminochalcone 2 was obtained from substituted aniline and cyclized to afford quinolones 6, 8a, and 8b.