Introduction of a fluorine atom into position 16 of the Ï-chain is a useful tool for modulation of biological activity in the prostanoid field. We devised a facile, four-step synthesis of 1-fluorocyclohexanecarboxylic acid, a precursor of phosphoranes and phosphonates required for building up the Ï-chain of the fluorinated prostacyclin 1. This method is generally applicable to the synthesis of α-fluoro-α-branched carboxylic acids from ketones.
将
氟原子引入
前列腺素领域中ï-链的第16位是一种调节
生物活性的有效手段。我们设计了一种简便的四步骤合成方法,用于制备1-
氟环己烷羧酸,这是构建
氟化
前列腺素I1的ï-链所需的
磷烷和
膦酸盐的前体。该方法一般适用于从酮合成α-
氟-α-支链
羧酸。