475278-46-7Relevant academic research and scientific papers
Discovery of Pyrido[2,3- b]indole Derivatives with Gram-Negative Activity Targeting Both DNA Gyrase and Topoisomerase IV
Hu, Yimin,Shi, Houguang,Zhou, Mingwei,Ren, Qingcheng,Zhu, Wei,Zhang, Weixing,Zhang, Zhiwei,Zhou, Chengang,Liu, Yongqiang,Ding, Xiao,Shen, Hong C.,Yan, S. Frank,Dey, Fabian,Wu, Waikwong,Zhai, Guanglei,Zhou, Zheng,Xu, Zhiheng,Ji, Ying,Lv, Hua,Jiang, Tianyi,Wang, Wen,Xu, Yunhua,Vercruysse, Maarten,Yao, Xiangyu,Mao, Yi,Yu, Xiaomin,Bradley, Kenneth,Tan, Xuefei
, p. 9623 - 9649 (2020)
The rise of multidrug resistant (MDR) Gram-negative (GN) pathogens and the decline of available antibiotics that can effectively treat these severe infections are a major threat to modern medicine. Developing novel antibiotics against MDR GN pathogens is particularly difficult as compounds have to permeate the GN double membrane, which has very different physicochemical properties, and have to circumvent a plethora of resistance mechanisms such as multiple efflux pumps and target modifications. The bacterial type II topoisomerases DNA gyrase (GyrA2B2) and Topoisomerase IV (ParC2E2) are highly conserved targets across all bacterial species and validated in the clinic by the fluoroquinolones. Dual inhibitors targeting the ATPase domains (GyrB/ParE) of type II topoisomerases can overcome target-based fluoroquinolone resistance. However, few ATPase inhibitors are active against GN pathogens. In this study, we demonstrated a successful strategy to convert a 2-carboxamide substituted azaindole chemical scaffold with only Gram-positive (GP) activity into a novel series with also potent activity against a range of MDR GN pathogens. By systematically fine-tuning the many physicochemical properties, we identified lead compounds such as 17r with a balanced profile showing potent GN activity, high aqueous solubility, and desirable PK features. Moreover, we showed the bactericidal efficacy of 17r using a neutropenic mouse thigh infection model.
METALLOENZYME INHIBITOR COMPOUNDS
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Paragraph 0334; 0335; 0336; 0337, (2018/07/29)
Provided are compounds having metalloenzyme modulating activity, and methods of treating diseases, disorders or symptoms thereof mediated by such metalloenzymes.
BENZIMIDAZOLE DERIVATIVES AND USES THEREOF
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Paragraph 0299, (2015/12/31)
Benzimidazole derivatives of Formula I, that modulate the activity of ACSS2 are disclosed for therapeutic use. The fused imidazole ring of the compounds disclosed has a diarylmethyl or diarylmethanol moiety attached at the 2-position and the compounds have at least one other substituent at the 5 or 6 position of the benzimidazole. Also disclosed are methods of using the benzimidazole compounds for the treatment of diseases or disorders, such as cancer.
Synthesis of a (thienylethenyl)benzimidazole platinum acetylide complex
Davis, Matthew C.,Baldwin, Lawrence C.,Groshens, Thomas J.
supporting information; experimental part, p. 1564 - 1566 (2012/04/17)
A new platinum acetylide complex based on 6-dialkylaminobenzimidazol-2-yl- vinyl-2-thiophene-5-ylethyne was synthesized in seven steps and 2% overall yield.
HOMOGENEOUS TIME RESOLVED FLUORESCENCE BASED TEST SYSTEM
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Page/Page column 21, (2010/12/29)
The present invention concerns a fluorescence resonance energy transfer based high throughput test system to measure the formation of the HIV gp41 six-helix bundle. In a first embodiment the current invention relates to a homogeneous time resolved fluorescence-based test system comprising a first helical polypeptide consisting essentially of the sequence of IQN36 (SEQ ID NO:1); a second helical polypeptide consisting essentially of the sequence of C34 (SEQ ID NO: 2) wherein said IQN36 is labeled with a light emitting fluorophore and said C34 is labeled with an ultra-violet excitable fluorophore.
New compounds
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, (2008/06/13)
The present invention relates to substituted bis-arylsulfonamide and arylsulfonamide compounds of the general formula (I) or the formula (II), which compounds are potentially useful for the prophylaxis and treatment of medical conditions relating to obesity, type II diabetes and/or disorders of the central nervous system.
Novel AMPA receptor antagonists: Synthesis and structure-activity relationships of 1-hydroxy-7-(1H-imidazol-1-yl)-6-nitro-2,3(1H,4H)- quinoxalinedione and related compounds
Ohmori,Shimizu-Sasamata,Okada,Sakamoto
, p. 3971 - 3979 (2007/10/03)
As part of our study of novel antagonists at the α-amino-3-hydroxy-5- methylisoxazole-4-propionate (AMPA) subtype of excitatory amino acid (EAA) receptors and the pharmacophoric requirements of the receptor, we designed and synthesized a series of 1-substituted 6-imidazolyl-7-nitro-, and 7- imidazolyl-6-nitroquinoxalinediones, as well as related compounds, 6a-j, 7, 11a-e, 15, and 17, which are 1- and 4-substituted analogues of 1 (YM90K), and evaluated their activity to inhibit [3H]AMPA binding from rat whole brain. On the basis of their structure-activity relationships (SAR), we deduced that the amide proton of the imidazolyl-near side of the quinoxalinedione nucleus is not essential for AMPA receptor binding, whereas that of the imidazolyl- far amide is. Further, the receptors possess size-limited bulk tolerance for their N-substituents on the imidazolyl-near amide portion. Moreover, we found that introduction of a hydroxyl group at the imidazolyl-near amide portion causes a severalfold improvement in AMPA receptor affinity over unsubstituted derivatives. Among the compounds, 1-hydroxy-7-(1H-imidazol-1-yl)-6-nitro- 2,3(1H,4H)-quinoxalinedione (11a) showed high affinity for AMPA receptor with a K(i) value of 0.021 μM, which is severalfold greater than that of 1 and NBQX (2) (1, K(i) = 0.084 μM; 2, K(i) = 0.060 μM). Compound 11a also showed over 100-fold selectivity for the AMPA receptor than for the N-methy]-D- aspartate (NMDA) receptor and the glycine site on NMDA receptor.
