内生真菌是天然产物的丰富来源,具有广泛的有效生物活性。本文介绍了两种天然存在的 α-吡喃酮 dothideopyrone E 和 F 的合成。这些天然产物是从内生真菌Dothideomycetes sp 的培养物中分离出来的。EL003334。概述的策略包括 Fu-Suzuki 烷基-烷基交叉偶联、MacMillan α-氧胺化和 Sato 周环级联过程来构建 4-羟基-2-吡喃酮环系统。合成化合物的所有获得的数据都与分离材料的数据相匹配。
Enantioselective synthesis of (+)-patulolide C via proline-catalyzed sequential α-aminooxylation and Horner–Wadsworth–Emmons olefination
摘要:
The enantioselective total synthesis of (+)-patulolide C isolated from Penicillium urticae has been achieved from commercially available 9-decen-1-ol. Jacobsen's kinetic resolution and sequential alpha-aminooxylation and Horner-Wadsworth-Emmons (HWE) olefination followed by Yamaguchi lactonization are used as the key reaction steps. (C) 2010 Elsevier Ltd. All rights reserved.