366-79-0Relevant academic research and scientific papers
Synthesis and evaluation of new phenyl acrylamide derivatives as potent non-nucleoside anti-HBV agents
Gu, Xiaoke,Zhang, Yinpeng,Zou, Yueting,Li, Xin,Guan, Mingyu,Zhou, Qingqing,Qiu, Jingying
, (2020/12/09)
As a continuation of our previous work, a series of new phenyl acrylamide derivatives (4Aa-g, 4Ba-t, 5 and 6a-c) were designed and synthesized as non-nucleoside anti-HBV agents. Among them, compound 4Bs could potently inhibit HBV DNA replication in wild-type and lamivudine (3TC)/entecavir resistant HBV mutant strains with IC50 values of 0.19 and 0.18 μM, respectively. Notably, the selective index value of 4Bs was above 526, indicating the favorable safety profile. Interestingly, unlike nucleoside analogue 3TC, 4Bs could significantly inhibit 3.5 kb pgRNA expression. Molecular docking study revealed that 4Bs could fit well into the dimer-dimer interface of HBV core protein by hydrophobic, π–π and H-bond interactions. Considering the potent anti-HBV activity, low toxicity and diverse anti-HBV mechanism from that of nucleoside anti-HBV agent 3TC, compound 4Bs might be a promising lead to develop novel non-nucleoside anti-HBV therapeutic agents, and warranted further investigation.
Discovery of N-(2-(Benzylamino)-2-oxoethyl)benzamide analogs as a novel scaffold of pancreatic β-cell protective agents against endoplasmic reticulum stress
Eeda, Venkateswararao,Herlea-Pana, Oana,Lim, Hui-Ying,Wang, Weidong
, p. 388 - 393 (2020/01/02)
Endoplasmic reticulum (ER) stress-induced pancreatic β-cell dysfunction and death play important roles in the development of diabetes. The 1,2,3-triazole derivative 1 is one of only a few structures that have thus far been identified that protect β cells against ER stress. However, this compound has narrow activity range and limited aqueous solubility. To overcome these, we designed and synthesized a new scaffold in which the triazole pharmacophore was substituted with a glycine-like amino acid. Structure–activity relationship studies on this scaffold identified a N-(2-(Benzylamino)-2-oxoethyl)benzamide analog WO5m that possesses β-cell protective activity against ER stress with much improved potency (maximal activity at 100% with EC50 at 0.1?±?0.01?μm) and water solubility. Identification of this novel β-cell protective scaffold thus provides a new promising modality for the treatment of diabetes.
Synthesis of Novel Benzamide- piperazine-sulfonamide Hybrids as Potential Anticancer Agents
Ramalingeswara Rao,Mohana Rao Katiki,Dileep Kommula,SaiShyam Narayanan,Ruby John Anto,Murty
, p. 393 - 402 (2019/12/12)
The synthesis of a series of substituted hippuric acid (2-benzamidoacetic acid) derivatives containing arylsulfonylpiperazine nucleus (3a–j, 4a–j) is described. The compounds were synthesized by coupling hippuric/4-fluorohippuric acid with various arylsulfonylpiperazines using N-(3-dimethylaminopropyl)-N-ethylcarbodiimide (EDCI). The structures of all the new compounds were confirmed by IR, NMR and MS spectral data. All the synthesized compounds have been evaluated for their in vitro cytotoxicity towards five human cancer cell lines of different origins viz. HeLa (Cervical), A549 (Lung), A375 (Skin), MD-AMB-231(Breast) and T98G (brain) and their IC50 values were determined. Among the compounds tested, 3b, 3d, 3g, 4c and 4e displayed significant cytotoxic activity (IC50 = 24.2–38.2 μM). T98G was the most sensitive cell line towards the compounds studied followed by HeLa, A375, A549 and MD-AMB-231.
PPAR AGONISTS, COMPOUNDS, PHARMACEUTICAL COMPOSITIONS, AND METHODS OF USE THEREOF
-
Page/Page column 45; 50, (2017/11/10)
Provided herein are compounds and compositions useful in increasing PPARδ activity. The compounds and compositions provided herein are useful for the treatment of PPARδ related diseases (e.g., muscular diseases, vascular disease, demyelinating disease, and metabolic diseases).
Synthesis and biological testing of (5Z)-2-aryl-5-arylmethylidene-3,5-dihydro-4H-imidazol-4-ones as antimitotic agents
Beloglazkina, Anastasia A.,Wobith, Birgit,Barskaia, Elena S.,Zefirov, Nikolay A.,Majouga, Alexander G.,Beloglazkina, Elena K.,Zyk, Nikolay V.,Kuznetsov, Sergei A.,Zefirova, Olga N.
, p. 1239 - 1249 (2016/07/06)
Compounds interacting with cell protein tubulin and microtubules represent an important type of antimitotic agents. A series of tubulin-targeted 2-aryl-4-benzoyl-imidazoles were reported to possess high cytotoxicity, and so, we prepared a series of structural isomers of these to be evaluated as antimitotic agents. The synthesis of the novel (Z)-2-aryl-5-arylmethylidene-3,5-dihydro-4H-imidazol-4-ones involved coupling of substituted hippuric acids with aromatic aldehydes. Subsequent conversion of the resulting oxazolones to the corresponding imidazolones was carried out under microwave irradiation in the presence of urea and ammonium acetate. The cytotoxicity of the majority of the compounds to human epithelial carcinoma cancer cell line A549 was in the sub-micromolar range and was found to be more sensitive to the substituents on the 5-arylmethylidene fragment than on the 2-aryl ring in general. The cytotoxicities of the synthesized compounds were lower than those of the previously reported isomeric 2-aryl-4-benzoyl-imidazoles, and the basic structure–activity relationships in the isomeric pairs were different. Synthesized (5Z)-5-[(4-bromophenyl)methylidene]-2-(4-methylphenyl)-3,5-dihydro-4H-imidazol-4-one, which had the highest cytotoxicity (IC50?~?440?nM) in the series of novel compounds, had a definite cytostatic effect on the A549 cells, but its antiproliferative properties were not linked to action on the microtubules. This would be an interesting lead compound for additional investigation into the mechanism of cytostatic action, and further structural optimization.
Palladium-catalyzed ortho-arylation of benzoic acid derivatives via C-H bond activation using an aminoacetic acid bidentate directing group
Zhou, Xiaomeng,Wang, Qing,Zhao, Weihua,Xu, Songsong,Zhang, Wei,Chen, Junmin
supporting information, p. 851 - 855 (2015/01/30)
A highly efficient protocol for the palladium-catalyzed ortho-arylation of benzoic acid derivatives by aryl iodides is described with an aminoacetic acid based N,O bidentate directing group. This protocol can be applied to various benzoyl aminoacetic acids and aryl iodides with both electron-donating and electron-withdrawing groups. Remarkably, the nature of a new directing group drives selective C-H bond activation to afford only monoarylation products in good to excellent yields.
Synthesis of di- and tri-substituted imidazole-4-carboxylates via PBu3-mediated [3+2] cycloaddition
Hsu, Mei-Yuan,Dietrich, Justin,Hulme, Christopher,Shaw, Arthur Y.
, p. 1538 - 1542 (2013/05/21)
Some new di- and trisubstituted imidazole-4-carboxylates were prepared from amidoacetic acids 3 in the present report. The key step to establish such imidazole- 4-carboxylates stemmed from the PBu3-mediated [3+2] cycloaddition between in situ-generated Δ2-oxazolinone 4 and ethyl cyanoformate6. Our results indicated that trisubstituted imidazoles 7-20 were afforded in better yields than those of disubstituted imidazoles 21-27. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications1 to view the free supplemental file. Copyright Taylor & Francis Group, LLC.
A convenient method for synthesis of 5-chloro-2-aryloxazole-4-carbaldehyde with vilsmeier reagent
Jin, Can,Chen, Jun,Su, Weike
experimental part, p. 153 - 161 (2011/04/21)
A convenient method for synthesis of 5-chloro-2-aryloxazole-4-carbaldehyde 3 in moderate to good yields had been developed via the Vilsmeier reaction of readily available N-arylglycine 2 at 100 °C, provided a novel route for the construction of nitrogen heterocycles. A series of these compounds were synthesized by this method and optimization of conditions was performed. The Japan Institute of Heterocyclic Chemistry.
Phenylpropenamide derivatives: Anti-hepatitis B virus activity of the Z isomer, SAR and the search for novel analogs
Wang, Peiyuan,Naduthambi, Devan,Mosley, Ralph T.,Niu, Congrong,Furman, Phillip A.,Otto, Michael J.,Sofia, Michael J.
scheme or table, p. 4642 - 4647 (2011/09/12)
Phenylpropenamides have been reported to be a class of non-nucleoside inhibitors of the hepatitis B virus (HBV). This class of compounds was explored with the objective of developing potent anti-HBV agents, with a novel mechanism of action, that could be combined with nucleos(t)ide analogs currently used to treat HBV infection. To accomplish this objective a series of substituted arylpropenamide derivatives were prepared and the E and Z geometrical isomers were separated. The structural identity of each of the E and Z isomers was determined by single crystal X-ray crystallography. Contrary to previous reports, the activity of this class of molecules resides in the Z isomer. Further structure-activity relationship studies around the active Z isomer identified compounds that displayed potent antiviral activity against HBV with EC90 value of approximately 0.5 μM in vitro. Attempts to develop ring constrained analogs did not lead to active HBV inhibitors.
Radiosynthesis and in vivo evaluation of a F-18-labeled pancreatic islet amyloid inhibitor
Pathuri, Gopal,Agashe, Hrushikesh B.,Awasthi, Vibhudutta,Gali, Hariprasad
experimental part, p. 186 - 191 (2011/08/06)
Formation of islet amyloid deposits contributes to the progressive loss of beta-cells in Type 2 diabetes. Islet amyloid is composed of islet amyloid polypeptide (IAPP). [(N-Me)G24, (N-Me)I26]hIAPP(22-27) peptide was found to bind hum
