LC-MS. The anticancer activity of the fourty-three new isatin derivatives against human T lymphocyte cells Jurkat was evaluated by MTT assay in vitro. SAR study suggested that the combination of 1-benzyl and 5-[trans-2-(methoxycarbonyl)ethen-1-yl] substitution greatly enhanced their cytotoxic activity. Among them, compound 2h was shown to have a significant cytotoxic activity with an IC50 value of
设计并合成了一系列新颖的二或三取代的靛红衍生物,以5–6的步骤合成,总产率为25–45%。它们的结构通过1 H NMR和13 C NMR以及LC-MS确认。体外MTT法检测了43种新的伊斯汀衍生物对人T淋巴细胞Jurkat的抗癌活性。SAR研究表明1-苄基和5- [反式-2-(甲氧羰基)乙烯-1-基]取代的组合大大增强了它们的细胞毒活性。其中,化合物2h被证明具有显着的细胞毒性活性,IC50值为0.03μM,比其母分子isatin高330倍以上。对细胞形态变化的研究和膜联蛋白-V / PI染色研究表明,化合物2h通过诱导凋亡来抑制Jurkat细胞的增殖。由于化合物2h诱导线粒体膜电位的耗散和caspase-3的激活,很明显,化合物2h通过线粒体的凋亡途径抑制Jurkat细胞的增殖。除此之外,化合物2h对许多其他肿瘤细胞具有抑制作用,并且仅显示出对人正常细胞的弱细胞毒性,这表明化合物2h 具有广泛的抗癌谱和对正常细胞的高安全性。
Design, synthesis, and biological evaluation of (2E)-(2-oxo-1, 2-dihydro-3 H -indol-3-ylidene)acetate derivatives as anti-proliferative agents through ROS-induced cell apoptosis
A novel class of (2E)-(2-oxo-1, 2-dihydro-3H-indol-3-ylidene)acetate derivatives were designed and synthesized as potent anti-proliferative agents. Most of these compounds showed potent anti-proliferative activity against some tumor cell lines, including SK-BR-3, MDA-MB-231, HCT-116, SW480, Ovcar-3, HL-60, Saos-2 and HepG2. Compounds 8c and 11h were identified as the most potent ones, while HL-60,
设计并合成了一类新型的(2E)-(2-氧代-1,2-二氢-3 H-吲哚-3-亚烷基)乙酸酯衍生物,作为有效的抗增殖剂。这些化合物大多数对某些肿瘤细胞系(包括SK-BR-3,MDA-MB-231,HCT-116,SW480,Ovcar-3,HL-60,Saos-2和HepG2)显示出有效的抗增殖活性。化合物8c和11h被认为是最有效的化合物,而HL-60,HCT116和MDA-MB-231是最敏感的细胞系。机理研究表明,化合物8c通过抑制TrxR增强活性氧的水平,然后通过激活HCT116细胞中的凋亡蛋白,bax和Caspase 3来诱导凋亡。SAR的初步分析表明,双键和酯基的修饰对抗增殖活性有很大影响。我们的发现表明,值得进一步研究(2E)-(2-oxo-1,2-dihydro-3 H -indol-3-ylidene)acetate的抗肿瘤效力。
Insights into Structure-Activity Relationships of 3-Arylhydrazonoindolin-2-One Derivatives for Their Multitarget Activity on β-Amyloid Aggregation and Neurotoxicity
作者:Rosa Purgatorio、Modesto de Candia、Annalisa De Palma、Francesco De Santis、Leonardo Pisani、Francesco Campagna、Saverio Cellamare、Cosimo Altomare、Marco Catto
DOI:10.3390/molecules23071544
日期:——
3-(2-arylhydrazono)indolin-2-one derivatives was synthesized and assayed, investigating the effects of substitutions on both the indole core and arylhydrazone moiety. Compared with the reference compound 1, we disclosed equipotent derivatives bearing alkyl substituents at the indole nitrogen, and fairly tolerated bioisosteric replacements at the arylhydrazone moiety. For most of the investigated compounds
5-arylisatin derivatives were synthesized in 5-6 steps from readily available starting materials. Their structures were confirmed by 1H NMR and 13C NMR as well as LC/MS. The cytotoxicity of these novel isatins against human leukemia K562 cells were evaluated by MTT assay in vitro. SAR studies indicated that the N-substituted benzyl and C-5 substituted phenyl groups greatly enhance their cytotoxic activity
从易于获得的起始原料中,以5-6个步骤合成了许多5-arylisatin衍生物。它们的结构通过1 H NMR和13 C NMR以及LC / MS确认。在体外通过MTT分析评估了这些新颖的靛红对人白血病K562细胞的细胞毒性。SAR研究表明,N-取代的苄基和C-5取代的苯基基团大大增强了它们的细胞毒性活性,而保持在母体环上C-3上完整的羰基官能度是必需的。尤其是,N-(对甲氧基苄基)-5-(对甲氧基苯基)Isatin(化合物2m)对K562细胞系表现出最高的抗肿瘤活性(IC50 = 0.03μM)。此外,化合物2m的治疗可显着抑制肝癌HepG2细胞的增殖和迁移,这也可以减少人脐静脉内皮细胞(HUVEC)管的形成。总之,化合物2m在体外通过血管生成反应表现出非常良好的癌细胞增殖抑制作用,并且2m可能是有希望的用于癌症治疗的血管生成抑制剂。
Direct Access to Alkylideneoxindoles via Axially Enantioselective Knoevenagel Condensation
作者:Simone Crotti、Nicola Di Iorio、Chiara Artusi、Andrea Mazzanti、Paolo Righi、Giorgio Bencivenni
DOI:10.1021/acs.orglett.9b00505
日期:2019.5.3
The organocatalytic axially enantioselective Knoevenagel condensation between prochiral cyclohexanones and oxindoles is presented. The reaction, promoted by a primary amine, proceeded smoothly and furnished unprecedented examples of novel cyclohexylidene oxindoles displaying axial chirality.