Synthesis and CYP26A1 inhibitory activity of 1-[benzofuran-2-yl-(4-alkyl/aryl-phenyl)-methyl]-1H-triazoles
摘要:
Methodology previously described by our group was applied to the preparation of a series of 4-alkyl/aryl-substituted 1-[benzofuran-2-yl-phenylmethyl]-1H-triazoles. The [1,2,4]-triazole derivatives were prepared for a range of alkyl and aryl substituents, and for the 4-methyl, 4-ethyl, 4-'propyl, 4-'butyl, 4-phenyl and 4-chlorophenyl derivatives, the minor [1,3,4]-triazole isomer also isolated. All the triazole derivatives were evaluated for CYP26A1 inhibitory activity using a MCF-7 cell-based assay. The 4-ethyl and 4-phenyl-1,2,4-triazole derivatives displayed inhibitory activity (IC50 4.5 and 7 mu M, respectively) comparable with that of the CYP26 inhibitor liarozole (IC50 7 mu M). Using a CYP26A1 homology model (based on CYP3A4) template, docking experiments were performed with MOE with multiple hydrophobic interactions observed in addition to coordination between the triazole nitrogen and the haem transition metal. (c) 2006 Elsevier Ltd. All rights reserved.
example of the palladium-catalyzed tandem addition/cyclization of 2-(2-acylphenoxy)acetonitriles with arylboronic acids has been developed, providing a new strategy for the synthesis of 2-aroyl benzofurans with excellent chemoselectivity and wide functional group compatibility. Preliminary mechanistic experiments indicate that this tandem process involves sequential nucleophilic addition generating 2
Nickel-Catalyzed Domino Reaction of α-Aryloxyacetonitriles with Arylboronic Acids: Synthesis of 2-Aroylbenzo[<i>b</i>]furans
作者:Subhashini V. Subramaniam、Vijaya Kumaran Dharmalingam、Anwesha Bhattacharya、Saravanan Peruncheralathan
DOI:10.1021/acs.orglett.3c03241
日期:2023.11.24
We disclose the first catalytic domino reaction of α-(2-formylaryloxy)acetonitriles with arylboronic acids, yielding a range of 2-aroylbenzo[b]furans with yields of up to 93%. Ni(acac)2 serves as an effective dual catalyst. The protocol is also applicable to α-(2-acetylphenoxy)acetonitrile, giving rise to 3-methyl-2-aroylbenzo[b]furans. This domino process is efficient, additive-free, and compatible
我们公开了 α-(2-甲酰基芳氧基)乙腈与芳基硼酸的首次催化多米诺反应,产生一系列 2-芳酰基苯并[ b ]呋喃,产率高达 93%。Ni(acac) 2是一种有效的双催化剂。该方案也适用于 α-(2-乙酰基苯氧基)乙腈,产生 3-甲基-2-芳酰基苯并[ b ]呋喃。该多米诺骨牌工艺高效、无添加剂,并且与多种芳基硼酸相容,包括带有CF 3、NO 2、CN 和CO 2 Me 基团的芳基硼酸。机理研究强调了镍催化剂促进的双重活化。