General Approach to Prostanes B<sub>1</sub>by Intermolecular Pauson-Khand Reaction: Syntheses of Methyl Esters of Prostaglandin B<sub>1</sub>and Phytoprostanes 16-B<sub>1</sub>-PhytoP and 9-L<sub>1</sub>-PhytoP
作者:Ana Vázquez-Romero、Xavier Verdaguer、Antoni Riera
DOI:10.1002/ejoc.201201442
日期:2013.3
esters of Prostaglandin B1 and Phytoprostanes 16-B1-PhytoP (PPB1-I) and 9-L1-PhytoP (PPB1-II) based on the modified Julia olefination of a formylcyclopentenone and an appropriately protected hydroxy sulfone has been developed. The cyclopentenones were efficiently prepared by intermolecular Pauson–Khand reaction of a (silyloxymethyl)alkyne. The sulfone counterpart was prepared by regioselective ring-opening
基于甲酰基环戊烯酮和适当保护的羟基砜的改性 Julia 烯化,合成了前列腺素 B1 和植物前列腺素 16-B1-PhytoP (PPB1-I) 和 9-L1-PhytoP (PPB1-II) 的甲酯的合成方法发达。通过(甲硅烷氧基甲基)炔烃的分子间 Pauson-Khand 反应可以有效地制备环戊烯酮。砜对应物是通过适当的手性环氧化物由 2-巯基苯并噻唑区域选择性开环制备的。砜上醇官能团的保护基团被证明是至关重要的。用叔丁基醚保护是最好的解决方案,其结果比叔丁基二甲基甲硅烷基醚更好。