Formal Homo-Nazarov and Other Cyclization Reactions of Activated Cyclopropanes
作者:Filippo De Simone、Tanguy Saget、Fides Benfatti、Sofia Almeida、Jérôme Waser
DOI:10.1002/chem.201102583
日期:2011.12.16
Replacing one of the vinylgroups by a cyclopropane leads to a formal homo‐Nazarov process for the synthesis of cyclohexenones. In contrast to the Nazarov reaction, the cyclization of vinyl‐cyclopropyl ketones is a stepwise process, often requiring harsh conditions. Herein, we describe two different approaches for further polarization of the three‐membered ring of vinyl‐cyclopropyl ketones to allow the
Synthesis of 3,3-Diarylazetidines by Calcium(II)-Catalyzed Friedel–Crafts Reaction of Azetidinols with Unexpected Cbz Enhanced Reactivity
作者:Camille Denis、Maryne A. J. Dubois、Anne Sophie Voisin-Chiret、Ronan Bureau、Chulho Choi、James J. Mousseau、James A. Bull
DOI:10.1021/acs.orglett.8b03745
日期:2019.1.4
Azetidines are valuable motifs that readily access under explored chemical space for drug discovery. 3,3-Diarylazetidines are prepared in high yield from N-Cbz azetidinols in a calcium(II)-catalyzed Friedel–Crafts alkylation of (hetero)aromatics and phenols, including complex phenols such as β-estradiol. Electron poor phenols undergo O-alkylation. The product azetidines can be derivatized to drug-like
Design of an Electron-Withdrawing Benzonitrile Ligand for Ni-Catalyzed Cross-Coupling Involving Tertiary Nucleophiles
作者:L. Reginald Mills、Racquel K. Edjoc、Sophie A. L. Rousseaux
DOI:10.1021/jacs.1c05281
日期:2021.7.14
The design of new ligands for cross-coupling is essential for developing new catalytic reactions that access valuable products such as pharmaceuticals. In this report, we exploit the reactivity of nitrile-containing additives in Ni catalysis to design a benzonitrile-containing ligand for cross-coupling involving tertiary nucleophiles. Kinetic and Hammett studies are used to elucidate the role of the
设计用于交叉偶联的新配体对于开发获得有价值产品(如药物)的新催化反应至关重要。在本报告中,我们利用含腈添加剂在 Ni 催化中的反应性来设计含苄腈的配体,用于涉及三级亲核试剂的交叉偶联。动力学和哈米特研究用于阐明优化配体的作用,这表明苄腈部分充当电子受体,以促进还原消除而不是 β-氢化物消除并稳定低价镍。在这些条件下,进行了脱氰-金属化和镍催化芳基化的方案,从而能够从双取代丙二腈中获得四元 α-芳基腈。
[EN] PIKFYVE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE KINASE PIKFYVE
申请人:ACURASTEM INCORPORATED
公开号:WO2021163727A1
公开(公告)日:2021-08-19
The present invention relates to compounds useful as inhibitors of phosphatidylinositol-3-phosphate 5-kinase (PIKfyve) as well as their use for treating diseases and disorders associated with PIKfyve.
Disclosed is a compound of Formula (I) or a pharmaceutically acceptable salt, ester, or solvate thereof, or their stereoisomers, which can be used as tyrosine kinase inhibitor. Also disclosed is a method for preparing the compound, a pharmaceutical composition and a kit comprising the compound, and uses of the compound. The compound can be used as tyrosine kinase inhibitor, or can be used to reduce or inhibit activity of EGFR or mutant thereof, such as EGFR mutant comprising T790M mutation, in a cell, or to treat and/or prevent a disease associated with overactivity of EGFR, such as cancer.