- Discovery of a Potent Botulinum Neurotoxin A Inhibitor ZM299 with Effective Protections in Botulism Mice
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Botulinum neurotoxins serotype A (BoNT/A) is the deadliest toxins known to humans and the "Category A" agent for bioterrorism. Over the past 20 years, significant efforts have been put forth to develop effective inhibitors of BoNT/A. Unfortunately, few id
- Gao, Jie,He, Zhili,Hong, Zhanying,Li, Tao,Luo, Deyan,Miao, Zhenyuan,Ning, Nianzhi,Wang, Hui,Wang, Jianxin,Wu, Yuelin,Xv, Xiguo,Zhang, Wannian,Zhang, Yanming,Zhuang, Chunlin
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p. 357 - 364
(2021/12/24)
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- CASPASE 6 INHIBITORS AND USES THEREOF
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Disclosed herein, inter alia, are compounds and methods for inhibiting Caspase 6 and the treatment of diseases, pharmaceutical composition including a compound as described herein and a pharmaceutically acceptable excipient and methods of inhibiting human Caspase 6 protein activity, the method including: contacting the human Caspase 6 protein with a compound as described herein.
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Paragraph 0612; 0660-0662
(2021/05/29)
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- Efficient synthesis, biological evaluation, and docking study of isatin based derivatives as caspase inhibitors
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ABTRACT: In this paper, a new series of isatin-sulphonamide based derivatives were designed, synthesised and evaluated as caspase inhibitors. The compounds containing 1-(pyrrolidinyl)sulphonyl and 2-(phenoxymethyl)pyrrolidin-1-yl)sulphonyl substitution at C5 position of isatin core exhibited better results compared to unsubstituted derivatives. According to the results of caspase inhibitory activity, compound 20d showed moderate inhibitory activity against caspase-3 and ?7 in?vitro compared to Ac-DEVD-CHO (IC50 = 0.016 ± 0.002 μM). Among the studied compounds, some active inhibitors with IC50s in the range of 2.33–116.91 μM were identified. The activity of compound 20d was rationalised by the molecular modelling studies exhibiting the additional van der Waals interaction of N-phenylacetamide substitution along with efficacious T-shaped π-π and pi-cation interactions. The introduction of compound 20d with good caspase inhibitory activity will help researchers to find more potent agents.
- Firoozpour, Loghman,Gao, Lixin,Moghimi, Setareh,Pasalar, Parvin,Davoodi, Jamshid,Wang, Ming-Wei,Rezaei, Zahra,Dadgar, Armin,Yahyavi, Hoda,Amanlou, Massoud,Foroumadi, Alireza
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p. 1674 - 1684
(2020/09/02)
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- Halogen-substituted triazolethioacetamides as a potent skeleton for the development of metallo-β-lactamase inhibitors
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Metallo-β-lactamases (MβLs) are the target enzymes of β-lactam antibiotic resistance, and there are no effective inhibitors against MβLs available for clinic so far. In this study, thirteen halogen-substituted triazolethioacetamides were designed and synthesized as a potent skeleton of MβLs inhibitors. All the compounds displayed inhibitory activity against ImiS with an IC50 value range of 0.032–15.64 μM except 7. The chlorine substituted compounds (1, 2 and 3) inhibited NDM-1 with an IC50 value of less than 0.96 μM, and the fluorine substituted 12 and 13 inhibited VIM-2 with IC50 values of 38.9 and 2.8 μM, respectively. However, none of the triazolethioacetamides exhibited activity against L1 at inhibitor concentrations of up to 1 mM. Enzyme inhibition kinetics revealed that 9 and 13 are mixed inhibitors for ImiS with Ki values of 0.074 and 0.27μM using imipenem as the substrate. Docking studies showed that 1 and 9, which have the highest inhibitory activity against ImiS, fit the binding site of CphA as a replacement of ImiS via stable interactions between the triazole group bridging ASP120 and hydroxyl group bridging ASN233.
- Zhang, Yilin,Yan, Yong,Liang, Lufan,Jiefeng,Wang, Xuejun,Li, Li,Yang, Kewu
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- 2-AMINO-BENZIMIDAZOLE DERIVATIVES AND THEIR USE AS 5-LIPOXYGENASE AND/OR PROSTAGLANDIN E SYNTHASE INHIBITORS
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The present invention relates to benzimidazole derivatives having the general formula I, wherein n is 0 or 1; X1 and X2 are independently, at each occurrence, CR5 or N; Y is C1-C6 alkylene, wherein alkylene is optionally substituted with one to two C1-C3 alkyl groups; R1 is selected from the group consisting of hydrogen, halogen, C1-C6 alkoxy, -NH2, -NHR6, -NR7R8 and -NH-(R9)n-R10, n being 0 or 1; R2 is selected from the group consisting of hydrogen, halogen, C1-C6 alkyl, -NH2, -NHR6, - NR7R8 and -NH-(R9)n-R10; R3 is selected from the group consisting of hydrogen, hydroxyl, OR11, -NR7R8, C1-C6 alkoxy, C1-C6 alkyl, C3-C10 cycloalkyl, C1-C3 haloalkyl, -C(O)NHR11, aryl, heteroaryl and heterocyclyl, wherein each of said cycloalkyl, aryl, heteroaryl and heterocyclyl is optionally and independently substituted with one to four Ra groups; and R4 is selected from the group consisting of -NH2, -N(R12)(V)pR13, - NH(V)p-OR14, -NHC(O)R15, and groups of formula la shown below, and their use in the treatment of diseases, in particular inflammatory diseases, cancer, stroke and/or Alzheimer's disease.
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Page/Page column 50; 51
(2016/03/12)
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- Synthesis and biological evaluation of N-(substituted phenyl)-2-(5H-[1,2,4]triazino[5,6-b]indol-3-ylsulfanyl)acetamides as antimicrobial, antidepressant, and anticonvulsant agents
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A new series of N-Aryl-2-(5H-[1,2,4]triazino[5,6-b]indol-3-ylsulfanyl)acetamides were synthesized by condensation of tricyclic compound 2,5-dihydro-3H-[1,2,4]triazino[5,6-b]indole-3-thione with chloro N-phenylacetamides. The tricyclic compound was obtaine
- Shruthi,Poojary, Boja,Kumar, Vasantha,Prathibha,Hussain, Mumtaz Mohammed,Revanasiddappa,Joshi, Himanshu
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p. 223 - 230
(2015/04/14)
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- Design and bio-evaluation of indole derivatives as potent Kv1.5 inhibitors
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Atrial fibrillation (AF) is one of the common arrhythmias that threaten human health. Kv1.5 potassium channel is reported as an efficacious and safe target for the treatment of AF. In this paper, we designed and synthesized three series of compounds through modifying the lead compound RH01617 that was screened out by the pharmacophore model we reported earlier. All of the compounds were evaluated by the whole-patch lamp technology and most of them possessed potent inhibitory activities against Kv1.5. Compounds IIIi and IIIl were evaluated for the target selectivity as well as the pharmacodynamic effects in an isolated rat model. Due to the promising pharmacological behavior, compound IIIl deserves further pharmacodynamic and pharmacokinetic evaluations.
- Guo, Xiaoke,Yang, Qian,Xu, Jing,Zhang, Li,Chu, Hongxi,Yu, Peng,Zhu, Yingying,Wei, Jinglian,Chen, Weilin,Zhang, Yaozhong,Zhang, Xiaojin,Sun, Haopeng,Tang, Yiqun,You, Qidong
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p. 6466 - 6476
(2013/10/22)
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- Synthesis and cytotoxic evaluation of some new phthalazinylpiperazine derivatives
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A new series of 1,4-disubstituted phthalazinylpiperazine derivatives 7a-f, 12a-f and 20a-f were designed and synthesized in order to develop potent and selective antitumor agents. The target compounds were screened for their cytotoxic activities against A549, HT-29 and MDA-MB-231 cancer cell lines in vitro. Among them, compounds 7a-f exhibited excellent selectivity for MDA-MB-231 with IC50 values ranging from 0.013 μM to 0.079 μM. The most promising compound, 7e (IC50 = 2.19 μM, 2.19 μM, 0.013 μM), was 9.3, 10, and 4.9 × 103 times more active than vatalanib (IC50 = 20.27 μM, 21.96 μM, 63.90 μM), respectively. A new series of 1,4-disubstituted phthalazinylpiperazine derivatives 7a-f, 12a-f and 20a-f were designed and synthesized, and their cytotoxic activities against A549, HT-29 and MDA-MB-231 cancer cell lines in vitro were compared to that of vatalanib.
- Liu, Yajing,Zhang, Shulan,Li, Ye,Wang, Jianqiang,Song, Yu,Gong, Ping
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experimental part
p. 287 - 293
(2012/07/01)
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- Structure-Based Design, Synthesis, and Antifungal Activity of New Triazole Derivatives
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A series of new antifungal triazole derivatives with phenylacetamide side chain were rational designed and synthesized on the basis of the structural information of lanosterol 14-demethylase (CYP51). In vitro antifungal activity assay indicated that several compounds showed higher activity than fluconazole. Especially, compound 8h showed excellent inhibitory activity against Candida albicans and Cryptococcus neoformans (MIC=0.0156μg/mL), suggesting that it is a promising lead for the development of novel antifungal agents. The binding mode of compound 8h was investigated by flexible molecular docking. It interacted with CACYP51 through hydrophobic and van der Waals interactions. A series of phenylacetamide-containing new azoles with good in vitro antifungal activity were rationally designed and synthesized.
- Sheng, Chunquan,Che, Xiaoying,Wang, Wenya,Wang, Shengzheng,Cao, Yongbing,Yao, Jianzhong,Miao, Zhenyuan,Zhang, Wannian
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scheme or table
p. 309 - 313
(2012/05/05)
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- MORPHOLINONE COMPOUNDS AS FACTOR IXA INHIBITORS
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The present invention provides a compound of Formula (I) as described herein, or a pharmaceutically acceptable salt or a solvate thereof. The present invention also provides pharmaceutical compositions comprising one or more said compounds, and methods fo
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Page/Page column 251
(2010/06/20)
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