Asymmetric synthesis of a key synthetic precursor for(+)-strigol and sorgolactone
摘要:
En-route to non-racemic iodomethyl butyrolactone 23g a number of stereoselective 1,4-additions and reductions have been studied. The only satisfactory approach involved baker's yeast reduction (21c-->23c) as key step.
作者:Charles W. Jefford、Jean-Claude Rossier、John Boukouvalas、Pingzhong Huang
DOI:10.1002/hlca.19940770309
日期:1994.5.11
The first synthesis of (Z)-neomanoalide (4) and an improved synthesis of its (E)-isomer 3 was accomplished in a concise, regiocontrolled manner by exploiting 2-[(tert-butyl)dimethylsiloxy]-4[(tert-butyl)dimethylsiloxy]-methyl}furan (6) as the key reagent. Lithiation of 6 and subsequent reaction with the (2Z)- or (2E)-isomer of (6E)-3-[(tert-butyl)dimethylsiloxy]methyl}-7-methyl-9-(2′,6′,6′-trime
Synthesis of Gamma-Butyrolactone Hormones Enables Understanding of Natural Product Induction
作者:Lauren E. Wilbanks、Haylie E. Hennigan、Christina D. Martinez-Brokaw、Hani Lakkis、Sarah Thormann、Alyssa S. Eggly、Grace Buechel、Elizabeth I. Parkinson
DOI:10.1021/acschembio.3c00241
日期:2023.7.21
major class of Streptomyces’ hormones. Study of these hormones has been limited due to challenges in accessing them in stereochemically pure forms. Herein, we describe an efficient route to (R)-paraconyl alcohol, a key intermediate for these molecules, as well as a biocatalytic method to access the exocyclic hydroxyl group that differentiates A-factor-type from SCB-type hormones. Utilizing these methods
细菌通过生物合成基因簇产生天然产物(NP)。不幸的是,许多生物合成基因簇在传统实验室条件下是沉默的。为了获得新型纳米粒子,需要更好地了解它们的调控。 γ-丁内酯,包括 A 因子和天蓝色链霉菌丁内酯 (SCB),是链霉菌激素的主要类别。由于获取立体化学纯形式的挑战,对这些激素的研究受到限制。在此,我们描述了一种获得 ( R )-对烷醇(这些分子的关键中间体)的有效途径,以及一种访问环外羟基的生物催化方法,该羟基可区分 A 因子型激素和 SCB 型激素。利用这些方法,合成了一个激素库,并在绿色荧光蛋白报告基因测定中测试了它们缓解阻遏物 ScbR 抑制的能力。这使得γ-丁内酯和同源阻遏物的最定量的结构-活性关系成为可能。生物信息学分析强烈表明,NP 生物合成的许多其他阻遏物可能结合类似的分子。这种高效、多样化的合成将使进一步研究纳米颗粒生物合成的调控成为可能。
作者:GOLDSMITH, D.、LIOTTA, D.、SAINDANE, M.、WAYKOLE, L.、BOWEN, P.
DOI:——
日期:——
Asymmetric synthesis of a key synthetic precursor for(+)-strigol and sorgolactone
作者:Josef Schröer、Peter Welzel
DOI:10.1016/s0040-4020(01)81337-5
日期:1994.1
En-route to non-racemic iodomethyl butyrolactone 23g a number of stereoselective 1,4-additions and reductions have been studied. The only satisfactory approach involved baker's yeast reduction (21c-->23c) as key step.
3-Alkylfurans as useful synthetic equivalents for substituted δ2-butenolides