An efficient stereoselective totalsynthesis of (+)-mueggelone, a novelinhibitor of fish development, is described. Highlights of the strategy include the utilization of Sharpless asymmetric epoxidation, Yamaguchi lactonization and an olefin cross-metathesis as the key steps.
Regio- and stereoselective hydroxylation of 10-undecenoic acid with a light-driven P450 BM3 biocatalyst yielding a valuable synthon for natural product synthesis
作者:Mallory Kato、Daniel Nguyen、Melissa Gonzalez、Alejandro Cortez、Sarah E. Mullen、Lionel E. Cheruzel
DOI:10.1016/j.bmc.2014.05.046
日期:2014.10
We report herein the selective hydroxylation of 10-undecenoic acid with a light-activated hybrid P450 BM3 enzyme. Under previously developed photocatalytic reaction conditions, only a monohydroxylated product is detected by gas chromatography. Hydroxylation occurs exclusively at the allylic position as confirmed from a synthesized authentic standard. Investigation into the stereochemistry of the reaction
我们在此报告了 10-十一碳烯酸与光活化杂种 P450 BM3 酶的选择性羟基化。在先前开发的光催化反应条件下,气相色谱仅检测到单羟基化产物。羟基化仅发生在烯丙基位置,如合成的可靠标准所证实。对反应立体化学的研究表明,以 85% ee 获得 R 对映异构体。酶促获得的 ( R )-9-羟基-10-十一碳烯酸是一种有价值的合成子,可用于各种天然产物,进一步扩展了光活化 P450 BM3 生物催化,并突出了与传统方法相比的优势。