[EN] NOVEL TRIAZOLE AND OXAZOLE COMPOUNDS AS TRANSFORMING GROWTH FACTOR (TGF) INHIBITOR<br/>[FR] NOUVEAUX COMPOSES DE TRIAZOLE ET D'OXAZOLE, INHIBITEURS DU FACTEUR DE CROISSANCE TRANSFORMANT
申请人:PFIZER PROD INC
公开号:WO2004026863A1
公开(公告)日:2004-04-01
Novel thiazole derivatives of formula I a - c, intermediates fo their preparation, pharmaceutical compositions containing them and their medicinal use are described. The compounds of the present invention are potent inhibitors of transforming growth factor ('TGF')-βsignaling pathway. They are useful in the treatment of various TGF-related disease states including, for example, cancer and fibrotic diseases.
描述了公式I a - c的新噻唑衍生物,其制备的中间体,含有它们的药物组合物以及它们的药用。本发明的化合物是转化生长因子('TGF')-β信号通路的有效抑制剂。它们在治疗各种与TGF相关的疾病状态中非常有用,例如癌症和纤维化疾病。
C–H arylation and alkenylation of imidazoles by nickel catalysis: solvent-accelerated imidazole C–H activation
A radical C–H arylation reaction of oxazoles with (hetero)aryl iodides using Cs2CO3 as base/electron donor and 1,1′-bis(diphenylphosphino) ferrocene (dppf) as a catalytic SET mediator is reported. The overall reaction likely follows the general base-promoted homolytic aromaticsubstitution mechanism through a radical-chain pathway. DFT calculations suggest that dppf forms a complex with CsCO3–, enhancing
报道了使用Cs 2 CO 3作为碱/电子给体和1,1'-双(二苯基膦基)二茂铁(dppf)作为催化SET介体,恶唑与(杂)芳基碘化物的自由基CH芳基化反应。整个反应可能通过自由基链途径遵循一般的碱促进的均质芳族取代机理。DFT计算表明,dppf与CsCO 3 –形成络合物,增强了SET还原能力,可从ArI生成芳基。
Mild Palladium-Catalyzed Regioselective Direct Arylation of Azoles Promoted by Tetrabutylammonium Acetate
作者:Fabio Bellina、Marco Lessi、Chiara Manzini
DOI:10.1002/ejoc.201300704
日期:2013.9
A mild, general, and convenient palladium-catalyzeddirectarylation of the 5-position of azoles with aryl bromides, efficiently promoted by tetrabutylammonium acetate, is described. 1-Methylpyrazole, oxazole, and thiazole reacted at 70 °C in N,N-dimethylacetamide by using Pd(OAc)2 as the catalyst precursor. Electron-poor and -rich functional groups, including the free hydroxy group, are well tolerated
Pd-Catalyzed Desulfonative Cross-Coupling of Benzylic Sulfone Derivatives with 1,3-Oxazoles
作者:Jacky C.-H. Yim、Masakazu Nambo、Cathleen M. Crudden
DOI:10.1021/acs.orglett.7b01510
日期:2017.7.21
The Pd-catalyzed desulfonative cross-coupling reaction of benzylic sulfone derivatives with 1,3-oxazoles via a deprotonative pathway has been developed. Broad substrate scope for both sulfone and 1,3-oxazole partners is observed, affording a variety of 1,3-oxazole-containing triarylmethanes. Sulfone partners that are primary benzylic, secondary benzylic, and benzhydryl are all effective. Using this