Merging Halogen-Atom Transfer (XAT) and Copper Catalysis for the Modular Suzuki–Miyaura-Type Cross-Coupling of Alkyl Iodides and Organoborons
作者:Zhenhua Zhang、Bartosz Górski、Daniele Leonori
DOI:10.1021/jacs.1c12649
日期:2022.2.2
Suzuki–Miyaura-type cross-couplings between alkyl iodides and aryl organoborons. This process requires a copper catalyst but, in contrast with previous approaches based on palladium and nickel systems, does not utilizes the metal for the activation of the alkylelectrophile. Instead, this strategy exploits the halogen-atom-transfer ability of α-aminoalkyl radicals to convert secondary alkyl iodides into the
[EN] PROSTAGLANDIN E2 RECEPTOR 4 ANTAGONISTS AND USES THEREOF<br/>[FR] ANTAGONISTES DU RÉCEPTEUR 4 DE LA PROSTAGLANDINE E2 ET LEURS UTILISATIONS
申请人:TEON THERAPEUTICS INC
公开号:WO2020251957A1
公开(公告)日:2020-12-17
Disclosed herein are compounds, compositions, and methods for modulating the prostaglandin E2 receptor 4 (EP4) with the compounds and compositions disclosed herein. Also described are methods of treating diseases or disorders that are mediated by the action of prostaglandin E2 (PGE2) at the prostaglandin E2 receptor 4 (EP4), such as cancer, with EP4 antagonists.
Pd0-mediated rapid coupling of methyl iodide with excess amounts of benzyl- and cinnamylboronic acid esters: efficient method for incorporation of positron-emitting 11C radionuclide into organic frameworks by coupling between two sp3-hybridized carbons
Pd0-mediatedrapid cross couplingbetween sp3-hybridized carbons of CH3I and benzyl- or cinnamylboronic acid esters using [PdP(tert-C4H9)3}2]/CsF in DMF/H2O gave the corresponding methylated compounds in high yield. The utility was well demonstrated for the synthesis of short-lived PET tracer, N-(4-[11C]ethylphenyl)propionamide, in 90 ± 1% radio-HPLC analytical yield and 49 ± 3% radiochemical yield
[EN] ARYLAMIDE COMPOUND, PHARMACEUTICAL COMPOSITION COMPRISING SAME, AND PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] COMPOSÉ ARYLAMIDE, COMPOSITION PHARMACEUTIQUE LE COMPRENANT, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 芳基酰胺化合物、包含其的药物组合物及其制备方法和用途
申请人:SICHUAN KELUN BIOTECH BIOPHARMACEUTICAL CO LTD