This invention provides a novel method for the preparation of 2,3-disubstituted-4-oxy-cyclopentan-1-one compounds that are useful for the synthesis of prostaglandins and prostaglandin analogs of industrial relevance. The method comprises the metal-catalyzed asymmetric 1,4-conjugate addition of vinylboron compounds to 2-substituted-4-oxy-cyclopent-2-en-1-ones. This method relies on the use of less toxic, easily-handled reagents, and can be performed under milder conditions than offered by some conventional methods, affording 2,3-disubstituted-4-oxy-cyclopentan-1-one compounds enantio- and diastereoselectively, which are precursors to the said prostaglandin and prostaglandin analogs, in high yield.
本发明提供了一种新的方法,用于制备2,3-二取代-4-氧基-
环戊烷-1-酮化合物,这些化合物对于合成工业相关的
前列腺素和
前列腺素类似物非常有用。该方法包括
金属催化的不对称1,4-共轭加成反应,将
乙烯基硼化合物加到2-取代-4-氧基-环戊-2-烯-1-酮上。该方法依赖于使用毒性较小、易于处理的试剂,并且可以在比某些传统方法提供的温和条件下进行,选择性地制备2,3-二取代-4-氧基-
环戊烷-1-酮化合物的对映体和立体异构体,这些化合物是所述
前列腺素和
前列腺素类似物的前体,收率高。