通过模仿采用模块化组装和发散环化的通用生物合成策略,我们开发了一个四步合成过程,以产生一系列受天然产物启发的支架。通过 Ugi 缩合、N-乙酰乙酰化和重氮转移,将构建块模块化组装到基于哌啶的歧管 6 上,具有羧酸基团,从而产生环化前体。The rhodium-catalyzed tandem cyclization and divergent cycloaddition gave rise to tetracyclic and hexacyclic scaffolds by the appropriate choice of dipolarophiles installed at modules 3 and 4. A different piperidine-based manifold 15 bearing an amino group was successfully applied to
[EN] N-ACETYLSEROTONIN DERIVATIVES AS TRKB ACTIVATORS AND USES THEREOF<br/>[FR] DÉRIVÉS DE N-ACÉTYLSÉROTONINE EN TANT QU'ACTIVATEURS DE TRKB ET LEURS UTILISATIONS
申请人:UNIV EMORY
公开号:WO2021222577A1
公开(公告)日:2021-11-04
This disclosure relates to N-acetylserotonin derivatives that have neuroprotective properties for uses in treating or preventing traumatic brain injury, vision loss, neuronal cell ischemia, and retinal degenerative diseases. In certain embodiments, this disclosure relates to pharmaceutical compositions comprising the N-acetylserotonin derivative and a pharmaceutically acceptable excipient.
Provided herein are compounds and pharmaceutical compositions comprising said compounds that are useful for treating cancers. Specific cancers include those that are mediated by YAP/TAZ or those that are modulated by the interaction between YAP/TAZ and TEAD.
Skeletal Diversity via a Folding Pathway: Synthesis of Indole Alkaloid-Like Skeletons
作者:Hiroki Oguri、Stuart L. Schreiber
DOI:10.1021/ol047945w
日期:2005.1.1
Inspired by the skeletal diversity of naturally occurring indole alkaloids and the rich potential of chemistry developed by Padwa and co-workers, we conceived a pathway entailing six modes of intramolecular reactions leading to indole alkaloid-like skeletons. In this context, an efficient folding pathway via a rhodium-catalyzed tandem cyclization-cycloaddition involving three of the modes has been developed (two of which are shown above) that affords densely functionalized compounds with three distinct skeletons in a stereocontrolled manner.
Sequential Ruthenium Catalysis for Olefin Isomerization and Oxidation: Application to the Synthesis of Unusual Amino Acids
作者:Marc Liniger、Yiyang Liu、Brian M. Stoltz
DOI:10.1021/jacs.7b08496
日期:2017.10.4
How can you use a ruthenium isomerization catalyst twice? A ruthenium-catalyzed sequence for the formal two-carbon scission of allyl groups to carboxylic acids has been developed. The reaction includes an initial isomerization step using commercially available ruthenium catalysts followed by in situ transformation of the complex to a metal-oxo species, which is capable of catalyzing subsequent oxidation