- Synthesis and larvicidal activity of 1,3,4-oxadiazole derivatives containing a 3-chloropyridin-2-yl-1H-pyrazole scaffold
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Abstract: A new series of 1,3,4-oxadiazole derivatives with a 3-chloropyridin-2-yl-1H-pyrazole moiety was designed, synthesized, and characterized. The results of bioassay against Helicoverpa armigera and Plutella xylostella indicated that some of the synthesized compounds showed remarkable larvicidal activity. In particular, the LC50 values of the most active compounds against P. xylostella were 46.5, 23.9, and 13.9?mg/dm3, and against Helicoverpa armigera were 88.3 and 69.5?mg/dm3, the latter being slightly better than commercial chlorpyrifos (LC50 103.77?mg/dm3). Preliminary SAR was also discussed. Graphical abstract: [Figure not available: see fulltext.].
- Wang, Yanyan,Lu, Xiumian,Shi, Jun,Xu, Jiahong,Wang, Fenghua,Yang, Xiao,Yu, Gang,Liu, Zhiqian,Li, Chuanhui,Dai, Ali,Zhao, Yonghui,Wu, Jian
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p. 611 - 623
(2018/01/17)
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- The synthesis and evaluation of phenoxyacylhydroxamic acids as potential agents for Helicobacter pylori infections
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Two series of ω-phenoxy contained acylhydroxamic acids as novel urease inhibitors were designed and synthesized. Biological activity evaluations revealed that ω-phenoxypropinoylhydroxamic acids were more active than phenoxyacetohydroxamic acids. Out of these compounds, 3-(3,4-dichlorophenoxy)propionylhydroxamic acid c24 showed significant potency against urease in both cell free extract (IC50 = 0.061 ± 0.003 μM) and intact cell (IC50 = 0.89 ± 0.05 μM), being over 450- and 120-fold more potent than the clinically prescribed urease inhibitor AHA, repectively. Non-linear fitting of experimental data (V-[S]) suggested a mixed-type inhibition mechanism and a dual site binding mode of these compounds.
- Ni, Wei-Wei,Liu, Qi,Ren, Shen-Zhen,Li, Wei-Yi,Yi, Li-Li,Jing, Heng,Sheng, Li-Xin,Wan, Qin,Zhong, Ping-Fu,Fang, Hai-Lian,Ouyang, Hui,Xiao, Zhu-Ping,Zhu, Hai-Liang
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supporting information
p. 4145 - 4152
(2018/07/13)
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- Synthesis and biological activity of 1-(Substituted phenoxyacetoxy)- 1-(pyridin-2-yl or thien-2-yl)methylphosphonates
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A series of novel O,O-dimethyl 1-(substituted phenoxyacetoxy)-1-(pyridin-2-yl or thien-2-yl)methylphosphonates 6a-n and 7a-d were synthesized. Their structures were confirmed by IR, 1H NMR, mass spectroscopy, and elemental analyses. The results of preliminary bioassays show that some of the title compounds exhibit moderate to good herbicidal and fungicidal activities. For example, the title compounds 6a, 6c, 6l, 6m, and 7d possess 90-100% inhibition against most of the tested plants at the dosage of 1500 g ai/ha, whereas the title compounds 6b, 6g-h and 6n possess 92-100% inhibition against Fusarium oxysporum, Phyricularia grisea, Botrytis cinereapers, Gibberella zeae, Sclerotinia sclerotiorum, and Cercospora beticola at the concentration of 50mg/L.
- Wang, Tao,Wang, Wei,Peng, Hao,He, Hongwu
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p. 173 - 179
(2015/01/30)
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- QUINOLINONE DERIVATIVES
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The present invention relates to compounds of the formula (I), salts thereof, to pharmaceutical compositions containing them and their use in medicine. In particular, the invention relates to compounds as activators of AMPK.
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Page/Page column 52
(2012/09/22)
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- Synthesis and xanthine oxidase inhibitory activity of 7-methyl-2- (phenoxymethyl)-5H-[1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one derivatives
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An elevated level of blood uric acid (hyperuricemia) is the underlying cause of gout. Xanthine oxidase is the key enzyme that catalyzes the oxidation of hypoxanthine to xanthine and then to uric acid. Allopurinol, a widely used xanthine oxidase inhibitor is the most commonly used drug to treat gout. However, a small but significant portion of the population suffers from adverse effects of allopurinol that includes gastrointestinal upset, skin rashes and hypersensitivity reactions. Moreover, an elevated level of uric acid is considered as an independent risk factor for cardiovascular diseases. Therefore use of allopurinol-like drugs with minimum side effects is the ideal drug of choice against gout. In this study, we report the synthesis of a series of pyrimidin-5-one analogues as effective and a new class of xanthine oxidase inhibitors. All the synthesized pyrimidin-5-one analogues are characterized by spectroscopic techniques and elemental analysis. Four (6a, 6b, 6d and 6f) out of 20 synthesized molecules in this class showed good inhibition against three different sources of xanthine oxidase, which were more potent than allopurinol based on their respective IC50 values. Molecular modeling and docking studies revealed that the molecule 6a has very good interactions with the Molybdenum-Oxygen-Sulfur (MOS) complex a key component in xanthine oxidase. These results highlight the identification of a new class of xanthine oxidase inhibitors that have potential to be more efficacious, than allopurinol, to treat gout and possibly against cardiovascular diseases.
- Sathisha,Khanum, Shaukath A.,Chandra, J.N. Narendra Sharath,Ayisha,Balaji,Marathe, Gopal K.,Gopal, Shubha,Rangappa
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experimental part
p. 211 - 220
(2011/03/17)
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- THIADIAZOLE DERIVATIVES, INHIBITORS OF STEAROYL-COA DESATURASE
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The present invention relates to substituted thiadiazole compounds of the formula (I) and pharmaceutically acceptable salts thereof, to pharmaceutical compositions containing them and their use in medicine. In particular, the invention relates to compounds for modulating SCD activity.
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Page/Page column 43
(2008/12/07)
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- SPHINGOSINE-1 -PHOSPHATE RECEPTOR AGONIST AND ANTAGONIST COMPOUNDS
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The present invention is directed to novel, potent, and selective agents, which are agonists or antagonists of the one or more of the individual receptors of the S1P receptor family. The compounds of the invention are useful as therapeutics for treating medical conditions associated with agonism or antagonism of the individual receptors of the S1P receptor family.
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Page/Page column 70-71
(2008/12/07)
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- Synthesis and herbicidal activity of O,O-dialkyl phenoxyacetoxyalkylphosphonates containing fluorine
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A series of substituted phenoxyacetoxyalkylphosphonates bearing fluorine were designed and synthesized. All the new compounds were identified by elemental analysis, IR, 1H NMR and MS and were tested for herbicidal activity in greenhouse at a rate of 1.5 kg/ha. The results of preliminary bioassay showed that fluorine moiety introduced to the core structure could help to improve the herbicidal activity, and compounds with a 3-trifluoromethyl in benzene ring exhibited higher inhibitory activity.
- Chen, Ting,Shen, Ping,Li, Yanjun,He, Hongwu
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p. 291 - 295
(2007/10/03)
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- CHEMOKINE RECEPTOR ANTAGONISTS
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A compound of formula (I) or a pharmaceutically acceptable salt or prodrug ester thereof, wherein the variants R, R9, Z, X, Q and Y are defined in the specification.
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Page/Page column 100
(2010/02/13)
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- Heterocyclic compounds as P2X7 ion channel blockers
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The present invention relates to a novel series of 4,5-diphenyl-2-amino-4,5-dihydro-imidazole derivatives of the formula II: 1 wherein R, R1, R2, R3, R4, R5, X and Y are as defined herein. This invention also relates to methods of making these compounds. The compounds of this invention are P2X7 ion channel blockers and are therefore useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases having an inflammatory component, including inflammatory bowel disease, rheumatoid arthritis and disease conditions associated with the central nervous system, such as stroke, Alzheimer''s disease, etc.
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Page/Page column 83
(2010/02/10)
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- Substituted oxoazaheterocyclyl compounds
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This invention is directed to oxoazaheterocycyl compounds which inhibit Factor Xa, to oxoazaheterocycyl compounds which inhibit both Factor Xa and Factor IIa, to pharmaceutical compositions comprising these compounds, to intermediates useful for preparing these compounds, to a method of directly inhibiting Factor Xa and to a method of simultaneously directly inhibiting Factor Xa and Factor IIa..
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Page/Page column 77
(2008/06/13)
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- 16-Phenoxy and 16-substituted phenoxy-prostatrienoic acid derivatives
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Novel racemic and 8R-antimeric 16-phenoxy- and 16-(o, m or p)-substituted phenoxy derivatives of 9α, 11α,15-trihydroxy-17,18,19,20-tetranorprosta-4,5,13-trans-trienoic acids, which may be further substituted at C-15 by a methyl or ethyl group, the pharmaceutically acceptable, non-toxic lower alkyl esters and salts thereof and processes for the production of such compounds. dl 9α,11α,15α-trihydroxy-16-m-trifluoromethylphenoxy-17,18,19,20-tetranorprosta-4,5,13-trans-trienoic acid and dl 9α,11α,15 -trihydroxy-15 -methyl-16-m-trifluoromethylphenoxy-17,18,19,20-tetranorprosta-4,5,13-trans-trienoic acid are representative compounds of the class. These compounds possess prostaglandin-like activities and thus are useful in the treatment of mammals where prostaglandins are indicated. They are particularly useful as luteolytic agents in female mammals.
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