Toward Highly Potent Cancer Agents by Modulating the C-2 Group of the Arylthioindole Class of Tubulin Polymerization Inhibitors
摘要:
New arylthioindole derivatives having different cyclic substituents at position 2 of the indole were synthesized as anticancer agents. Several compounds inhibited tubulin polymerization at submicromolar concentration and inhibited cell growth at low nanomolar concentrations. Compounds 18 and 57 were superior to the previously synthesized S. Compound 18 was exceptionally potent as an inhibitor of cell growth: it showed IC50 = 1.0 nM in MCF-7 cells, and it was uniformly active in the whole panel of cancer cells and superior to colchicine and combretastatin A-4. Compounds 18, 20, 55, and 57 were notably more potent than vinorelbine, vinblastine, and paclitaxel in the NCl/ADR-RES and Messa/Dx5 cell lines, which overexpress P-glycoprotein. Compounds 18 and 57 showed initial vascular disrupting effects in a tumor model of liver rhabdomyosarcomas at 15 mg/kg intravenous dosage. Derivative 18 showed water solubility and higher metabolic stability than 5 in human liver microsomes.
This invention relates to certain novel imidazoline compounds and analogues thereof, to their use for the treatment of diabetes, diabetic complications, metabolic disorders, or related diseases where impaired glucose disposal is present, to pharmaceutical compositions comprising them, and to processes for their preparation.
commercially available aryldiazoniumtetrafluoroborate derivatives with 2-(piperidin-1-yl)acetonitrile (an organic cyano reagent) under mild conditions. This process utilizes a Pd/(Me3Si)2 system and is applied to a wide scope of aromatic diazonium substrates to give the corresponding nitrile-containing products in moderate to high yields (59–92%). This methodology is employed for the preparation of etravirine
本研究描述了在温和条件下用 2-(哌啶-1-基)乙腈(一种有机氰基试剂)对市售芳基重氮四氟硼酸盐衍生物进行一锅催化氰化。该工艺利用 Pd/(Me 3 Si) 2系统,并应用于范围广泛的芳族重氮底物,以中等至高产率 (59-92%) 得到相应的含腈产品。该方法用于制备用于治疗 HIV 的药物依曲韦林,以及转化 1 H-indole-2-carbonitrile 转化为用作 NMDA 受体拮抗剂的化合物,并且对 HIV 突变株具有很高的潜力。为这种 Pd 催化的氰化提出的机制涉及氰化物离子,正如使用试纸所证实的那样。
3-Imidazolyl-Indoles for the Treatment of Proliferative Diseases
申请人:Boettcher Andreas
公开号:US20100125064A1
公开(公告)日:2010-05-20
The invention relates to 3-heterocyclyl indolyl compounds capable of inhibiting the interaction between p53, or variants thereof, and MDM2 and/or MDM4, or variants thereof, respectively, said compounds having the formula I,
wherein
R
1
, R
2
, R
3
, R
4
, R
A
, Y and Y are as defined in the specification. Due to their activity, the compounds are useful in the treatment of various disorders and diseases mediated by the activity of MDM2 and/or MDM4, or variants thereof, such as inflammatory or proliferative diseases or in the protection of cells.
Synthesis, antimicrobial activity, and molecular docking study of fluorine-substituted indole-based imidazolines
作者:Humberto L. Mendoza-Figueroa、Maria Trinidad Serrano-Alva、Gerardo Aparicio-Ozores、Gelacio Martínez-Gudiño、Oscar R. Suárez-Castillo、Nadia A. Pérez-Rojas、Martha S. Morales-Ríos
DOI:10.1007/s00044-018-2177-x
日期:2018.6
A series of 2- or 3-(4,5-dihydro-1H-imidazol-2-yl)-1H-indole derivatives were synthesized, characterized, and evaluated for their in vitro antibacterial and antifungal activities. Additionally, the synthesized compounds were docked into the II DNA gyrase B active site, and their predicted binding modes were inspected. Inhibitory activity were tested against two species of Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa), two species of Gram-positive bacteria (Staphylococcus aureus, Listeria monocytogenes) and two fungi (Candida albicans, Aspergillus niger) using the broth microdilution method. The fluorine-substituted 2-(2-imidazolyl)indole 2b was found to be the most potent antibacterial compound against E. coli and S. aureus strains (MIC value 80 mu g/mL). Compounds showed better activity against Gram-positive bacteria compared to Gram-negative bacteria. The docking results predicted that the imidazoline-indole hybrid moiety bind to the active site protein ATP-binding pocket from E. coli and S. aureus with good interaction energy scores. The significant loss of antibacterial activity for some imidazoline-indole analogs could be attributed to several nonoptimal enzyme interactions, including poor hydrogen bonds provided by Asp73 (E. coli gyrase numbering) or Asp81 (S. aureus gyrase numbering) and an associated water molecule.
3-(Imidazol-1-ylalkyl)indoles as selective inhibitors of thromboxane synthetase,pharmaceutical compositions thereof, and methods for preparing them