Synthesis of Macrosporin and Related 9,10-Anthraquinones by Biomimetic Polyketide Aromatization and Cyclization of 6-Benzylresorcylates
作者:Jens Cordes、Anthony G. M. Barrett
DOI:10.1002/ejoc.201201480
日期:2013.3
This paper describes the synthesis of an array of 9,10-anthraquinones 2 by initial preparation of 6-benzylresorcylates 3 from oxo-dioxinone precursors 4 and their subsequent conversion to anthrones by cyclization and oxidation. Resorcylates 3 were obtained by an improved two-step procedure from oxo ester 5 and acyl chlorides 6. These methods were applied in a seven-step synthesis of the fungal natural
本文描述了一系列 9,10-蒽醌 2 的合成,方法是从氧代二恶英前体 4 初步制备 6-苄基间苯二甲酸酯 3,然后通过环化和氧化将它们转化为蒽酮。Resorcylates 3 是由氧代酯 5 和酰氯 6 通过改进的两步程序获得的。这些方法应用于真菌天然产物大孢子素 (1) 的七步合成。