[EN] PYRAZOLE COMPOUNDS AND THEIR USE AS T-TYPE CALCIUM CHANNEL BLOCKERS [FR] COMPOSÉS DE PYRAZOLE ET LEUR UTILISATION EN TANT QUE BLOQUEURS DES CANAUX CALCIQUES DE TYPE T
Effects of B2pin2 and PCy3 on copper-catalyzed trifluoromethylation of substituted alkenes and alkynes with the Togni reagent
作者:Pär G. Janson、Nadia O. Ilchenko、Alberto Diez-Varga、Kálmán J. Szabó
DOI:10.1016/j.tet.2014.12.077
日期:2015.2
The copper-catalyzed oxytrifluoromethylation of phenylacetylenes and C–H trifluoromethylation of quinones were studied. It was found that both reactions are accelerated by B2pin2 and PCy3 additives. The two reactions have different substituent effects. The oxytrifluoromethylation is faster in the presence of electron-donating groups, while the C–H trifluoromethylation is faster with electron-withdrawing
An object of the present invention is to provide a novel substance that has a high reactivity as a fluorinating agent, is effectively used in various fluorination reactions, and is safely handled even in air. As the solution for achieving this object, the present invention provides a complex obtained by reacting bromine trifluoride with at least one metal halide selected from the group consisting of halogenated metals and halogenated hydrogen metals in a nonpolar solvent. This complex serves as a fluorinating agent that provides excellent fluorination performance and that is stable in air.
Palladium‐Catalyzed Oxidative Trifluoromethylation of Indoles at Room Temperature
作者:Xin Mu、Shujun Chen、Xingliang Zhen、Guosheng Liu
DOI:10.1002/chem.201100283
日期:2011.5.23
Trifluoromethylation of indoles has been performed successfully at roomtemperature by using a novel palladium‐catalyzedoxidation strategy. In this reaction, PhI(OAc)2 has been used as an oxidant and TMSCF3 as a trifluoromethylation reagent (see scheme). A palladium(II/IV) mechanism has been proposed for the formation of the aryl CCF3 bond.
Synthesis of new 3-(trifluoromethyl)-1<i>H</i>-indoles by reduction of trifluoromethyloxoindoles
作者:Moônica M. Bastos、Lúcia M. U. Mayer、Elza C. S. Figueira、Marcio Soares、Núbia Boechat、Warner B. Kover
DOI:10.1002/jhet.5570450404
日期:2008.7
work describes the synthesis of new 3-trifluoromethylindoles. Different isatins were trifluoromethylated using (trifluoromethyl) trimethylsilane (Me3SiCF3) as a nucleophilic agent giving new 3-hydroxy-3-(trifluoromethyl)indolin-2-one. Different “one-step” procedures to transform the latter compounds into the reduced indoles were attempted, but failed. For the synthesis of the new trifluoromethylindoles
Pyrazole compounds and their use as T-type calcium channel blockers
申请人:IDORSIA PHARMACEUTICALS LTD
公开号:US10065929B2
公开(公告)日:2018-09-04
The invention relates to compounds of formula (I)
wherein X, Y, R1, R2, (R4)n, and (R5)m are as defined in the description, and to pharmaceutically acceptable salts of such compounds. These compounds are useful as calcium T-channel blockers.
本发明涉及式 (I) 的化合物
其中X、Y、R1、R2、(R4)n和(R5)m如描述中所定义,并涉及此类化合物的药学上可接受的盐。这些化合物可用作钙 T 通道阻滞剂。