Kurdyumov Aleksey V, Hsung Richard P, Ihlen Kirsten, Wang Jiashi
Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Org Lett. 2003 Oct 16;5(21):3935-8. doi: 10.1021/ol030100k.
[reaction: see text] Total syntheses of (+/-)-rhododaurichromanic acids A and B and methyl (+/-)-daurichromenic ester are described here. Despite the complex appearances of these compounds, their syntheses are completed in six steps with a 15% overall yield as a mixture by featuring our formal oxa-[3 + 3] cycloaddition methodology.
[反应:见正文] 本文描述了(±)-玫红杜鹃色原酸A和B以及甲基(±)-杜鹃色烯酯的全合成。尽管这些化合物结构复杂,但通过我们的形式氧杂-[3 + 3]环加成方法,它们的合成以六步完成,以混合物形式计总收率为15%。