Synthesis and biological evaluation of novel T-type Ca2+ channel blockers
摘要:
A small molecule library of piperazinylalkylisoxazole derivatives containing about 600 compounds was designed, synthesized and evaluated for blocking effects on T-type Ca2+ channel. Several ligands were identified to possess high inhibitory activity against the T-type Ca2+ channel. The compound 21 with trifluoromethyl substituents at C-3-position of phenyl group (W) and C-2-position of phenyl group (R-2) showed the highest inhibitory activity with IC50 value of 1.02 muM, which is comparable to that of mibefradil. (C) 2004 Elsevier Ltd. All rights reserved.
AbstractAn efficient synthesis of 1,4-dihydropyridines was developed. 1,4-Dihydropyridines were synthesized starting from various 3-substituted isoxazolyl-5-carbaldehydes, ethyl acetoacetate, and ammonium acetate under microwave irradiation and solvent-free conditions (86–96 %), and were characterized by HRMS, FT-IR, 1H NMR, and 13C NMR spectroscopy. Solidsupport SiO2 was found to possess favorable
摘要开发了1,4-二氢吡啶的有效合成方法。在微波辐射和无溶剂条件下(86-96%),由各种3-取代的异恶唑基-5-甲醛,乙酰乙酸乙酯和乙酸铵开始合成1,4-二氢吡啶,并通过HRMS,FT-IR,1 H NMR和13 C NMR光谱。发现固体载体SiO 2具有用于缩合反应的有利的催化和分散性。该方法的优点包括环境友好的反应条件,简单的操作,广泛的底物,良好的收率和SiO 2的再利用。此外,在正交Pbca空间基团中给出了化合物4- [3-(2-(甲氧基苯基)异恶唑-5-基] -2,6-二甲基-1,4-二氢吡啶-3,5-二羧酸二乙酯的晶体结构。 图形概要
Ultrasonic-assisted synthesis of 1,4-disubstituted 1,2,3-triazoles via various terminal acetylenes and azide and their quorum sensing inhibition
作者:Da-wei Zhang、Yu-min Zhang、Jing Li、Tian-qi Zhao、Qiang Gu、Feng Lin
DOI:10.1016/j.ultsonch.2016.12.011
日期:2017.5
An efficient synthesis of 1,4-disubstituted 1,2,3-triazole derivatives was studied. 1,4-Disubstituted 1,2,3-triazoles containing isoxazole and thymidine structures were synthesized in 84-96% yields starting from various terminal isoxazole ether alkynes and β-thymidine azide derivatives via a 1,3-dispolar cycloaddition using copper acetate, sodium ascorbate as the catalyst under ultrasonic assisted
Synthesis and in vitro biological evaluation of novel coumarin derivatives containing isoxazole moieties on melanin synthesis in B16 cells and inhibition on bacteria
novel series of coumarin derivatives 6a-o, bearing isoxazolemoieties were designed and synthesized. After that, they were evaluated for melanin synthesis in murine B16 cells and inhibitory effect on the growth of CA (Candida albicans), EC (Escherichia coli), SA (Staphylococcus aureus). It was found that eleven compounds (6b-f, 6j-o) showed a better activity on melanin synthesis than positive control
Disclosed are compounds of Formula 1, including all stereoisomers, N-oxides, and salts thereof,
wherein
Q, Z, R
2
, R
3
and m are as defined in the disclosure.
Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention.
[EN] PYRIMIDINYLOXY BENZENE DERIVATIVES AS HERBICIDES<br/>[FR] DÉRIVÉS DE PYRIMIDINYLOXY BENZÈNE À UTILISER EN TANT QU'HERBICIDES
申请人:DU PONT
公开号:WO2015108779A1
公开(公告)日:2015-07-23
Disclosed are compounds of Formula (1), including all stereoisomers, N-oxides, and salts thereof, wherein Q, Z, R2, R3 and m are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and methods for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with an effective amount of a compound or a composition of the invention.