Design, synthesis, and evaluation of new 4(
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3
<i>H</i>
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)‐quinazolinone derivatives containing a pyrazole carboxamide moiety
作者:Xiang Wang、Xiaoyu Wang、Banghua Zhou、Jiefeng Long、Pei Li
DOI:10.1002/jhet.4334
日期:2021.11
well as antibacterial activities against Ralstonia solanacearum (R. solanacearum) and Xanthomomu oryzae pv. oryzae (Xoo) were assayed. Bioassay results revealed that the target compounds have certain antifungal and antibacterial activities. Especially, compound 5-chloro-1,3-dimethyl-N-(2-(4-oxo-2-(m-tolylamino)quinazolin-3(4H)-yl)ethyl)-1H-pyrazole-4-carboxamide (7g) exhibited better antibacterial activities
本研究共设计并合成了 15 种含有吡唑甲酰胺部分的新型 4(3 H )-喹唑啉酮衍生物。使用1 H NMR、13 C NMR、MS 和元素分析阐明了目标化合物的结构。然后,抗真菌活性对玉米赤霉( G. zeae )、尖孢镰刀菌( F. oxysporum )、Cytospora mandshurica ( C. mandshurica )、致病疫霉( P. infestans ) 和Pellicularia sasakii ( P. sasakii ) 具有抗菌活性反对Ralstonia solanacearum ( R. solanacearum ) 和Xanthomomu oryzae pv。对稻瘟病菌( Xoo ) 进行了测定。生物测定结果表明,目标化合物具有一定的抗真菌和抗菌活性。特别是,化合物5-氯-1,3-二甲基- ñ - (2-(4-氧代-2-(米-tolylamino)喹唑啉-3(4
Synthesis of 3-aminoalkyl-2-arylaminoquiazolin-4(3<i>H</i>)-ones and 3,3′-disubstituted bis-2-arylaminoquinazolin-4(3<i>H</i>)-ones<i>via</i>reactions of 1-aryl-3-(2-ethoxycarbonylphenyl)carbodiimides with diamines
1-Aryl-3-(2-ethoxycarbonylphenyl)carbodiimides 2, obtained from aza-Wittig reactions of iminophosphorane 1 with aryl isocyanates, reacted with primary diamines in 1:1 and 2:1 molar ratio under mild conditions to give selectively the regioisomers 3-aminoalkyl-2-arylaminoquinazolin-4(3H)-ones 3 and 3,3′-disubstitutedbis-2-arylaminoquinazolin-4(3H)-ones 4 in good yields, respectively. To fully characterize