European Chemical Bulletin最新文献_第8页

SPERM PARAMETERS OF THE INFERTILE PATIENTS IN RELATION TO SOCIO DEMOGRAPHIC FACTORS 不孕症患者精子参数与社会人口因素的关系

European Chemical Bulletin Pub Date : 2022-01-01 DOI: 10.31838/ecb/2022.11.04.012

引用次数: 0

INFLUENCE OF SAMPLE MASS ON ACCURACY OF WOOL FIBER TONE MEASUREMENT ON AN ACOUSTIC DEVICE 样品质量对声学装置上羊毛纤维色调测量精度的影响

European Chemical Bulletin Pub Date : 2022-01-01 DOI: 10.31838/ecb/2022.11.03.004

引用次数: 1

THE EFFECT OF GOLD NANOPARTICLES ON SOME REPRODUCTIVE HORMONES IN MALE IN MALE ALBINO RATS RATTUS NORVEGICUS 金纳米颗粒对褐家鼠雄性生殖激素的影响

European Chemical Bulletin Pub Date : 2022-01-01 DOI: 10.31838/ecb/2022.11.04.016

引用次数: 0

SIMULTANEOUS QUANTIFICATION OF MINOXIDIL AND FINASTERIDE IN BULK AND PHARMACEUTICAL DOSAGE FORM BY RP-HPLC METHOD 反相高效液相色谱法同时测定原料药和制剂中米诺地尔和非那雄胺的含量

European Chemical Bulletin Pub Date : 2021-02-11 DOI: 10.17628/ECB.2021.10.237-241

P. Jay, Jinal N. Tandel, Usmagani Chhalotiya, Kirtan Patel

引用次数: 1

SYNTHESIS, MOLECULAR DOCKING AND ANTIMICROBIAL ACTIVITIES 2-(1-ALLYL-1H-TETRAZOL-5-YLSULFANYL)-N-(ARYL)ACETAMIDES 2-（1-烯丙基-1H-四唑-5-基硫烷基）-N-（芳基）乙酰胺的合成、分子对接及其抗菌活性

European Chemical Bulletin Pub Date : 2021-02-02 DOI: 10.17628/ECB.2021.10.230-236

T. Chaban, M. Arshad, L. Kostyshyn, I. Drapak, V. Matiychuk

引用次数: 0

SYNTHESIS AND CHARACTERIZATION OF NOVEL 3-SUBSTITUTED-4-HYDROXY-2-OXO-1-PHENYL/METHYL-QUINOLIN-2-(1H)-ONE DERIVATIVES AS ANALGESIC AGENTS 新型镇痛剂3-取代-4-羟基-2-氧代-1-苯基/甲基喹啉-2-（1H）酮衍生物的合成与表征

European Chemical Bulletin Pub Date : 2021-01-31 DOI: 10.17628/ECB.2021.10.218-224

Oslinda Fernandes, Soniya Padhe, B. Biradar, A. Menezes

{"title":"SYNTHESIS AND CHARACTERIZATION OF NOVEL 3-SUBSTITUTED-4-HYDROXY-2-OXO-1-PHENYL/METHYL-QUINOLIN-2-(1H)-ONE DERIVATIVES AS ANALGESIC AGENTS","authors":"Oslinda Fernandes, Soniya Padhe, B. Biradar, A. Menezes","doi":"10.17628/ECB.2021.10.218-224","DOIUrl":"https://doi.org/10.17628/ECB.2021.10.218-224","url":null,"abstract":"A series of 3-substituted-4-hydroxy-2-oxo-1-phenyl/methylquinolin-2-(1 H )-one derivatives were synthesized by condensation of two moles of 3-acetyl-4-hydroxy-1-phenyl/methyl quinolin-2(1 H )-one with ketone by Claisen-Schmidt reaction resulted in 3-substituted-4-hydroxy-2-oxo-1-phenyl/methylquinolin-2-(1 H )-one derivatives { (III a/b 1-5) }. All the synthesized compounds were characterized by IR and NMR data and analgesic activity was ascertained by Eddy’s hot plate method. The newly synthesized compounds showed satisfactory efficacy when compared to the reference standard drug Ibuprofen. Compounds ( III b-1 , III b-2 , III b-3 ) showed maximal analgesic effect after 1 h and waned off after 4 h. Using Molegro Virtual Docker (MVD-2013, 6.0) software , docking studies of the title compounds { IIIa/b-(1-5) } were carried out. The synthesized compounds exhibited well-conserved hydrogen bonds with one or more amino acid residues in the active pocket of the Human GRIK1 domain (PDB ID: 4MF3). The interpretation of docking studies revealed that the MolDock Score of compound (III b-1) was (- 137.967 ), which is comparable to that of the standard ligand ( -138.637 ) and standard drug Ibuprofen ( -139.385 ) and (III b-1) showed promising analgesic activity.","PeriodicalId":11880,"journal":{"name":"European Chemical Bulletin","volume":"10 1","pages":"218-224"},"PeriodicalIF":0.0,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48439848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

SYNTHESIS AND TOXICOLOGICAL STUDIES ON DISTYRYL-SUBSTITUTED HETEROCYCLIC INSECTICIDES 二酰基取代杂环杀虫剂的合成及毒理学研究

European Chemical Bulletin Pub Date : 2021-01-31 DOI: 10.17628/ECB.2021.10.225-229

S. A. Abdel-Raheem, A. El-Dean, R. Zaki, R. Hassanien, M. El-Sayed, M. Sayed, Aly A. Abd-Ella

{"title":"SYNTHESIS AND TOXICOLOGICAL STUDIES ON DISTYRYL-SUBSTITUTED HETEROCYCLIC INSECTICIDES","authors":"S. A. Abdel-Raheem, A. El-Dean, R. Zaki, R. Hassanien, M. El-Sayed, M. Sayed, Aly A. Abd-Ella","doi":"10.17628/ECB.2021.10.225-229","DOIUrl":"https://doi.org/10.17628/ECB.2021.10.225-229","url":null,"abstract":"The toxicity of four pyridine-containing neonicotinoid analogues as potential insecticides against cowpea aphid, Aphis craccivora Koch, has been evaluated. The four pyridine compounds are 2-((2-oxopropyl)thio)-4,6-distyrylnicotinonitrile ( 2 ), 2-acetyl-3-amino-4,6-distyrylthieno[2,3- b ]pyridine ( 3 ), ethyl 2-((3-cyano-4,6-distyrylpyridin-2-yl)thio)acetate ( 4 ), and ethyl 3-amino-4,6-distyrylthieno[2,3- b ]pyridine-2-carboxylate ( 5 ). By screening the insecticidal activity for compounds ( 2-5 ) against the cowpea aphid nymphs after 24 h of treatment, the LC 50 values were 0.133, 0.687, 0.171, and 0.771 ppm, respectively, and after 48 h of treatment, the LC 50 values were 0.016, 0.111, 0.029, and 0.058 ppm, respectively. Also, by screening the insecticidal activity for compounds ( 2-5 ) against the cowpea aphid adults after 24 h of treatment, the LC 50 values were 1.655, 5.611, 0.421, and 7.957 ppm, respectively, and after 48 h of treatment, the LC 50 values were 0.116, 0.431, 0.062, and 0.539 ppm, respectively. These results proved that the presence of different functional groups in the structure of the aforementioned compounds furnished a range of biological activities as promising insecticides. The insecticidal activity results against cowpea aphid for these compounds showed a good biological activity using acetamiprid insecticide as a reference.","PeriodicalId":11880,"journal":{"name":"European Chemical Bulletin","volume":"10 1","pages":"225-229"},"PeriodicalIF":0.0,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43414555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

SYNTHESIS, CHARACTERIZATION AND INVESTIGATION OF CHALCONE AS CORROSION INHIBITORS FOR MILD STEEL IN HYDROCHLORIC ACID 低碳钢盐酸缓蚀剂查尔酮的合成、表征及研究

European Chemical Bulletin Pub Date : 2021-01-23 DOI: 10.17628/ECB.2021.10.199-204

Prashant Katharotiya, Siva Prasad Das

引用次数: 1

CISTACEAE PLANTS OF ISRAEL AND PALESTINE. UNDER-INVESTIGATED FAMILY WITH GREAT POTENTIAL 以色列和巴勒斯坦的苁蓉科植物。潜力巨大的未被调查的家庭

European Chemical Bulletin Pub Date : 2021-01-23 DOI: 10.17628/ECB.2021.10.205-217

A. Azab

{"title":"CISTACEAE PLANTS OF ISRAEL AND PALESTINE. UNDER-INVESTIGATED FAMILY WITH GREAT POTENTIAL","authors":"A. Azab","doi":"10.17628/ECB.2021.10.205-217","DOIUrl":"https://doi.org/10.17628/ECB.2021.10.205-217","url":null,"abstract":"Cistaceae plant family is one of the most under-investigated families in our region. Few plants of this family were reasonably studied, but most of them were either totally “ignored” or very limitedly published. Those that were studied reveal the richness in special natural products that have unique structures with special sub-units. Even traditional medicines worldwide made very little use of these plants, compared with other plant families that grow in Israel and Palestine. In this short review article, we will present some ethnomedicinal uses of this family's plants, along with a comprehensive literature survey of medicinal, biological and other activities published by modern research. The presentation will include tables and figures for the convenience of readers. The discussion section will focus on some of the studies about chemistry and the biochemistry of the special natural products of this family and the importance of accurate scientific reporting. To the best of our knowledge, a review article about this plant family of our region was never published and it will be a significant contribution since very few review articles about this family were published hitherto. Conclusions and future research recommendations are presented for the benefit of interested scholars.","PeriodicalId":11880,"journal":{"name":"European Chemical Bulletin","volume":"10 1","pages":"205-217"},"PeriodicalIF":0.0,"publicationDate":"2021-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47324455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

NIGHTLY OZONE CONCENTRATIONS AT GROUND LEVEL IN THE MIDWEST OF BRAZIL: NO AND NO2 CONCENTRATION ASSIGNMENTS 巴西中西部夜间地面臭氧浓度：NO和NO2浓度分配

European Chemical Bulletin Pub Date : 2021-01-23 DOI: 10.17628/ECB.2021.10.191-198

A. Souza, M. Abreu, J. F. Oliveira‐Júnior, F. Aristone, W. A. Fernandes, R. Graf, Taynã Maria Pinto Lins, Carlos José Reis

{"title":"NIGHTLY OZONE CONCENTRATIONS AT GROUND LEVEL IN THE MIDWEST OF BRAZIL: NO AND NO2 CONCENTRATION ASSIGNMENTS","authors":"A. Souza, M. Abreu, J. F. Oliveira‐Júnior, F. Aristone, W. A. Fernandes, R. Graf, Taynã Maria Pinto Lins, Carlos José Reis","doi":"10.17628/ECB.2021.10.191-198","DOIUrl":"https://doi.org/10.17628/ECB.2021.10.191-198","url":null,"abstract":"The contribution of the precursors nitric oxide (NO), nitrogen dioxide (NO 2 ), and meteorological factors were evaluated in relation to the formation of nocturnal O 3 in Campo Grande – MS, Brazil. The maximum nocturnal level identified in the study for NO 2 , NO, and O 3 were 49.5, 58.0, and 30.0 μg.m -3 ,followed by the minimum values of 10.0, 6.0, and 9.0 μg m -3 and averages of 27.4, 21.2, and 18.3 μg m -3 , respectfully. The effect of NO 2 and NO titration emitted by anthropic sources in the urban area, which has the highest levels of NO 2 and NO in comparison with other locations, may be the main driving force of the lowest nocturnal O 3 value. During the night, O 3 titration at ground level occurred, resulting in the average value of the ratio, recorded as 25.6 with maximum and minimum values of 35.4 and 19.8 μg m -3 . It suggests that urban locations with wind speeds values of positive can lead to the accumulation of O 3 at night. The average ratio between the concentration of nocturnal ozone and diurnal surface ozone for Campo Grande was 55%.","PeriodicalId":11880,"journal":{"name":"European Chemical Bulletin","volume":"10 1","pages":"191-198"},"PeriodicalIF":0.0,"publicationDate":"2021-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48421785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1