Design, synthesis, and apoptosis-promoting effect evaluation of novel pyrazole with benzo[<i>d</i>]thiazole derivatives containing aminoguanidine units
Abstract New pyrazole with benzo[d]thiazoles containing hydrazinecarboximidamide substituent was synthesised and evaluated for cytotoxicity and apoptotic activity using the MTT assay, flow cytometry, and Western blot analysis. Among the compounds studied, (E)-2-((1-(6-((4-fluorobenzyl)oxy)benzo[d]thiazol-2-yl)-3-phenyl-1H- pyrazol-4-yl)methylene) hydrazinecarboximidamide (8l) was potent, with IC50
抽象的 合成了新的带有吡嗪[ d ]噻唑的新吡唑,该苯并[ d ]噻唑含有肼甲亚酰胺取代基,并使用MTT分析,流式细胞术和Western blot分析评估了细胞毒性和凋亡活性。在研究的化合物中,(E)-2-((1-(6-(((4-氟苄基)氧基)苯并[ d ]噻唑-2-基)-3-苯基-1 H-吡唑-4-基)亚甲基)肼甲酰胺(8l)的效价高,体外IC 50值分别为2.41 µM,2.23 µM,3.75 µM和2.31 µM分别针对三阴性乳腺癌细胞MDA-MB-231,非三阴性乳腺癌MCF-7细胞和人肝癌HepG2细胞和SMMC-7721细胞进行抗增殖活性测试。特别是,针对MDA-MB-231的活性类似于阿霉素,在本研究中被用作阳性对照。接下来,以不同浓度的化合物8l使用膜联蛋白V / PI流式细胞术测定,以证明化合物81以浓度依赖性方式诱导MDA-MB-231细胞的凋亡。最后,通过蛋白质印迹
Synthesis and Anticonvulsant Activity Evaluation of 7-Alkoxy[1,2,4]triazolo[3,4-<i>b</i>]benzothiazol-3(2<i>H</i>)-ones
作者:Da-Chuan Liu、Xian-Qing Deng、Shi-Ben Wang、Zhe-Shan Quan
DOI:10.1002/ardp.201300277
日期:2014.4
A new series of 7‐alkoxy[1,2,4]triazolo[3,4‐b]benzothiazol‐3(2H)‐ones were synthesized and evaluated for their anticonvulsantactivities. Among these compounds, 7‐propoxy[1,2,4]triazolo[3,4‐b]benzothiazol‐3(2H)‐one (4c) and 7‐butoxy[1,2,4]triazolo[3,4‐b]benzothiazol‐3(2H)‐one (4d) showed the highest activity against maximal electroshock (MES)‐induced tonic extension [effective dose (ED)50: 11.4 and
Benzo[<i>c</i>,<i>d</i>]indole-Containing Aza-BODIPY Dyes: Asymmetrization-Induced Solid-State Emission and Aggregation-Induced Emission Enhancement as New Properties of a Well-Known Chromophore
A series of symmetric and asymmetric benzo[c,d]indole‐containing aza boron dipyrromethene (aza‐BODIPY) compounds was synthesized by a titanium tetrachloride‐mediated Schiff‐base formation reaction of commercially available benzo[c,d]indole‐2(1H)‐one and heteroaromatic amines. These aza‐BODIPY analogues show different electronic structures from those of regular aza‐BODIPYs, with hypsochromic shifts
一系列对称和非对称苯并[ c ^,d ]含有吲哚氮杂硼二吡咯亚甲基(氮杂BODIPY)化合物用市售苯并[四氯化钛介导的席夫碱的形成反应,合成Ç,d ]吲哚-2( 1小时)一和杂芳族胺 这些aza-BODIPY类似物显示出与常规aza-BODIPYs不同的电子结构,与BODIPY对应物相比,主要吸收物发生了变色。除了溶液中的强烈荧光外,由于不对称化合物对振动带的吸收和荧光都有显着贡献,并且聚集体中的荧光猝灭减少,因此不对称化合物还表现出固态荧光。最后,通过将非共轭部分引入核心结构,实现了聚集诱导的发射增强,这在BODIPY生色团中很少见。
Pyrrolopyrrole aza-BODIPY near-infrared photosensitizer for dual-mode imaging-guided photothermal cancer therapy
assemblies is constant. Owing to the tetrahedral coordination, in the solidstate, the cobalt(II) complex exhibited a slow magnetic relaxation due to the negative D value of −27.1 cm−1 with an effective relaxation energy barrier Ueff of 38.0 cm−1. The effect of magnetic dilution on the relaxation behavior is discussed. The relaxation mechanism at low temperature was analyzed by considering spin lattice interactions