- Design and synthesis of amino acid derivatives of substituted benzimidazoles and pyrazoles as Sirt1 inhibitors
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Owing to its presence in several biological processes, Sirt1 acts as a potential therapeutic target for many diseases. Here, we report the structure-based designing and synthesis of two distinct series of novel Sirt1 inhibitors, benzimidazole mono-peptide
- Asthana, Shailendra,Banerjee, Sanjay K.,Kumar, Vasantha,Paramesha, Bugga,Poojary, Boja,Purushotham, Nikil,Singh, Mrityunjay,Wakode, Sharad
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p. 3809 - 3827
(2022/02/16)
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- COMPOUNDS, COMPOSITIONS, AND METHODS FOR MODULATING FERROPTOSIS AND TREATING EXCITOTOXIC DISORDERS
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The present disclosure provides, inter alia, a compound having the structure (1). Also provided are compositions containing a pharmaceutically acceptable carrier and one or more compounds according to the present disclosure. Further provided are methods f
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Paragraph 0164; 0180
(2020/06/19)
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- Novel arylalkylamine compounds exhibits potent selective antiparasitic activity against Leishmania major
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Leishmania major (L. major) is a protozoan parasite causal agent of Leishmaniasis. It is estimated that 12 million people are currently infected and around 2 million infections occur each year. Current treatments suffer of high toxicity for the patient, low efficacy toward the parasite, high cost, and are losing effectiveness due to parasite resistance. Discovering novel small molecule with high specificity/selectivity and drug-like properties for anti-leishmanial activity remains a significant challenge. The purpose of this study is to communicate the design and synthesis strategies of novel chemical compounds based of the arylalkylamine scaffold with selective toxicity towards L. major and less toxicity to human cells in vitro. Here, we have developed a structure activity relationship (SAR) study of arylalkylamine AA1 in order to study their anti-parasitic effect in L. major. Overall, 27 arylalkylamine compounds derived from AA1 were synthesized and purified by silica gel column chromatography. The purity of each analog was confirmed by spectroscopic methods (1H, 13C NMR and LC/MS). Among these analogs, the compound AA9 showed the best toxic activity on L. major (LD50 = 3.34 μM), which represents a 9 fold higher lethality as compared with its parental AA1 (Fer-1) compound (LD50 = 28.75 μM). In addition, AA9 showed no significant toxicity at 80 μM on U20S Human Osteoblasts, Raw 264.7 Macrophages or intraperitoneal macrophages. In summary, our combined SAR study and biological evaluation data of AA1-AA27 compounds allow the identification of novel arylalkylamine compound AA9 that exhibits potent cytotoxicity against L. major promastigote with minimum toxic effect on human cells.
- Iniguez, Eva A.,Perez, Andrea,Maldonado, Rosa A.,Skouta, Rachid
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p. 5315 - 5320
(2015/11/09)
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- MODULATING FERROPTOSIS AND TREATING EXCITOTOXIC DISORDERS
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The present invention provides, inter alia, a compound having the structure of Formula (I). Also provided are compositions containing a pharmaceutically acceptable carrier and a compound according to the present invention. Further provided are methods for treating or ameliorating the effects of an excitotoxic disorder in a subject, methods of modulating ferroptosis in a subject, methods of reducing reactive oxygen species (ROS) in a cell, and methods for treating or ameliorating the effects of a neurodegenerative disease.
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Paragraph 0273;
(2015/06/18)
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- Ferrostatins inhibit oxidative lipid damage and cell death in diverse disease models
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Ferrostatin-1 (Fer-1) inhibits ferroptosis, a form of regulated, oxidative, nonapoptotic cell death. We found that Fer-1 inhibited cell death in cellular models of Huntington's disease (HD), periventricular leukomalacia (PVL), and kidney dysfunction; Fer-1 inhibited lipid peroxidation, but not mitochondrial reactive oxygen species formation or lysosomal membrane permeability. We developed a mechanistic model to explain the activity of Fer-1, which guided the development of ferrostatins with improved properties. These studies suggest numerous therapeutic uses for ferrostatins, and that lipid peroxidation mediates diverse disease phenotypes.
- Skouta, Rachid,Dixon, Scott J.,Wang, Jianlin,Dunn, Denise E.,Orman, Marina,Shimada, Kenichi,Rosenberg, Paul A.,Lo, Donald C.,Weinberg, Joel M.,Linkermann, Andreas,Stockwell, Brent R.
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supporting information
p. 4551 - 4556
(2014/04/17)
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- COMPOUNDS, COMPOSITIONS, AND METHODS FOR MODULATING FERROPTOSIS AND TREATING EXCITOTOXIC DISORDERS
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The present invention provides, inter alia, a compound having the structure: (Formula (I). Also provided are compositions containing a pharmaceutically acceptable carrier and a compound according to the present invention. Further provided are methods for treating or ameliorating the effects of an excitotoxic disorder in a subject, methods of modulating ferroptosis in a subject, methods of reducing reactive oxygen species (ROS) in a cell, and methods for treating or ameliorating the effects of a neurodegenerative disease.
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Paragraph 0173; 0180; 0186
(2013/10/22)
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- Development of safe one-pot synthesis of N-1- and C-2-substituted benzimidazole via reductive cyclization of o-nitroarylamine using Na 2S2O4
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We report that the reductive cyclization of o-nitroarylamine with aldehyde using sodium dithionite (Na2S2O4) could be accelerated by addition of H2O, which made it possible to control the heat release of the reaction by semibatch-type operation. Safety evaluation was performed using DSC, ARSST, in situ IR analysis, and Multimax.
- Oda, Shinichi,Shimizu, Hideki,Aoyama, Yasunori,Ueki, Tatsuo,Shimizu, Sumio,Osato, Hiroshi,Takeuchi, Yoshiyuki
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experimental part
p. 96 - 101
(2012/05/31)
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- Indazole derivatives as modulators of interleukin-1 receptor-associated kinase
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The present invention relates to modulators of IRAK kinases of formula (I) and provides compositions comprising such modulators, as well as methods therewith for treating IRAK-mediated or IRAK-associated conditions or diseases.
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- Benzimidazole inhibitors of hepatitis C virus NS5B polymerase: Identification of 2-[(4-diarylmethoxy)phenyl]-benzimidazole
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A series of 1-cycloalkyl-2-phenyl-1H-benzimidazole-5-carboxylic acid derivatives was synthesized and evaluated for inhibitory activity against HCV NS5B RNA-dependent RNA polymerase (RdRp). A SAR study was performed and led to identify the 2-[(4-diarylmeth
- Ishida, Tomio,Suzuki, Takayoshi,Hirashima, Shintaro,Mizutani, Kenji,Yoshida, Atsuhito,Ando, Izuru,Ikeda, Satoru,Adachi, Tsuyoshi,Hashimoto, Hiromasa
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p. 1859 - 1863
(2007/10/03)
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- FUSED HETEROCYCLIC COMPOUND HAVING ANTI-HCV EFFECT
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Disclosed is a compound represented by the formula (I) below, a pharmaceutically acceptable salt thereof, or a solvate of them. (I) (In the formula, A represents N or CH; Het represents any one of the following groups: (a), (b), (c), (d), (e), (f), (g), (h), (i), (j), (k) wherein R0 and R respectively represent a hydrogen, an optionally substituted alkyl, an optionally substituted cycloalkyl, an optionally substituted aryl or the like; R1 and R2 respectively represent a hydrogen, an optionally substituted alkyl, an optionally substituted alkenyl, an optionally substituted cycloalkyl, an optionally substituted aryl, an optionally substituted heteroaryl or the like; p is an integer of 0-3; and R3 represents an optionally substituted alkyl or the like.)
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Page/Page column 40
(2010/02/15)
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- BICYCLIC IMIDAZOL DERIVATIVES AGAINST FLAVIVIRIDAE
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Disclosed are compounds, compositions and methods for treatingFlaviviridae family virus infections.
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Page/Page column 87; 127
(2008/06/13)
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- Fused-ring compounds and use thereof as drugs
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The present invention provides a fused ring compound of the following formula [I] wherein each symbol is as defined in the specification, a pharmaceutically acceptable salt thereof, and a therapeutic agent for hepatitis C, which contains this compound. Th
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- Viral polymerase inhibitors
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An isomer, enantiomer, diastereoisomer, or tautomer of a compound, represented by formula I: wherein R1 is selected from: H, haloalkyl, (C1-6)alkyl, (C2-6)alkenyl, (C3-7)cycloalkyl, (C2-6)alkynyl, (C5-7)cycloalkenyl, 6 or 10-membered aryl, Het all optionally substituted; R2 is selected from (C1-6)alkyl, (C3-7)cycloalkyl, (C6-10)bicycloalkyl, 6- or 10-membered aryl, or Het all optionally substituted; B is N or CR5, wherein R5 is H, halogen, haloalkyl, (C1-6)alkyl, (C3-7)cycloalkyl or (C1-6)alkyl-(C3-7)cycloalkyl; X is N or CR5; D is N or CR5; each of Y1 and Y2 is independently O or S; Z is O, N, or NRz wherein Rz is H, (C1-6)alkyl, (C3-7)cycloalkyl or (C1-6)alkyl-(C3-7)cycloalkyl; R3 and R4 are each independently H, (C1-6)alkyl, first (C3-7)cycloalkyl or 6- or 10-membered aryl, Het (C1-6)alkyl-6- or 10-membered aryl, (C1-6)alkyl-Het; or each R3 and R4 are independently covalently bonded together to form second (C3-7)cycloalkyl, or heterocycle, all optionally substituted; or when Z is N, either R3 or R4 are independently covalently bonded thereto to form a nitrogen-containing heterocycle; R7 is H, (C1-6 alkyl), (C3-7)cycloalkyl or (C1-6)alkyl-(C3-7)cycloalkyl; or R7 is covalently bonded to either of R3 or R4 to form a heterocycle; A is (C1-6) alkyl-CONHR8 wherein R8 is-6- or 10-membered aryl, or Het; or A is a 6- or 10-membered aryl, or Het said aryl or Het being optionally substituted; or a salt or a derivative thereof; such compounds being potent inhibitors of HCV NS5B polymerase.
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- A practical oxone - Mediated, high-throughput, solution-phase synthesis of benzimidazoles from 1,2-phenylenediamines and aldehydes and its application to preparative scale synthesis
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Addition of oxone to a mixture of a 1,2-phenylenediamine and an aldehyde in wet DMF at room temperature results in rapid formation of benzimidazoles under very mild conditions. The reaction is applicable to a wide range of substrates including aliphatic,
- Beaulieu, Pierre L.,Hache, Bruno,Von Moos, Elisabeth
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p. 1683 - 1692
(2007/10/03)
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