Synthesis of a key intermediate for the total synthesis of pseudopteroxazole
作者:J.S. Yadav、E. Vijaya Bhasker、P. Srihari
DOI:10.1016/j.tet.2010.01.054
日期:2010.3
A facile synthesis of a key intermediate for the totalsynthesis of anti-mycobacterial compound pseudopteroxazole is described employing an intramolecular Diels–Alder cyclization and an iodine-mediated oxidative aromatization step.
Trienone units and the elimination-prone hydroxy groups render pulvomycin D a capricious target, the total synthesis of which required a subtle endgame strategy, including a Heck reaction (3) and a sequential release of six silyl protecting groups combined with a Peterson elimination reaction (4). Earlier key steps of the synthesis included a diastereoselective aldol reaction (1) and a regioselective Yamaguchi
脆弱的女神:三烯酮单元和易于消除的羟基使普沃霉素 D 成为一个反复无常的目标,其全合成需要微妙的最终策略,包括赫克反应 (3) 和顺序释放六个甲硅烷基保护基团与Peterson 消除反应 (4)。合成的早期关键步骤包括非对映选择性羟醛反应 (1) 和区域选择性山口酯化 (2)。
Total Synthesis of the Guangnanmycin A Alcohol
作者:Kenzo Yahata、Alois Fürstner
DOI:10.1002/anie.202319070
日期:2024.3.4
isomerization. The signature disulfide was introduced by a thia-Michael addition reaction followed by an unusual thioether-to-disulfide swap. In the dense array, however, final oxidation of the primary alcohol was unsuccessful.