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Quantitative Analysis of Total Phenolic and Flavonoid Contents from Stachys mouretii Leaf Extracts 毛竹叶提取物中总酚和类黄酮含量的定量分析
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11802
Abdelmoughite Ouakil, Soumaya El ismaili, O. El Mahdi, A. Maurady, B. El Bali, M. Lachkar
{"title":"Quantitative Analysis of Total Phenolic and Flavonoid Contents from Stachys mouretii Leaf Extracts","authors":"Abdelmoughite Ouakil, Soumaya El ismaili, O. El Mahdi, A. Maurady, B. El Bali, M. Lachkar","doi":"10.3390/ecsoc-25-11802","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11802","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83054865","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: 0
Synthesis, Characterization, and Preliminary Chemosensory Ability of a Novel 2,4,5-Tri(Hetero)Arylimidazole Based on an 8-Hydroxy-Quinoline Group 基于8-羟基喹啉基团的新型2,4,5-三(杂)芳基咪唑的合成、表征和初步化学感觉能力
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11748
Odília M. P. F. Luís, Nuna L. P. Ramos, S. Costa, M. Raposo
{"title":"Synthesis, Characterization, and Preliminary Chemosensory Ability of a Novel 2,4,5-Tri(Hetero)Arylimidazole Based on an 8-Hydroxy-Quinoline Group","authors":"Odília M. P. F. Luís, Nuna L. P. Ramos, S. Costa, M. Raposo","doi":"10.3390/ecsoc-25-11748","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11748","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"34 12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77918226","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: 0
Benzene-1,3,5-tricarboxylic Acid-Functionalized Cherry Gum as a Novel and Recoverable Nanocatalyst for Efficient Synthesis of 1,4-polyhydroquinoline Derivatives 苯-1,3,5-三羧酸功能化樱桃胶作为新型可回收纳米催化剂高效合成1,4-聚对苯二酚衍生物
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11717
H. Ghafuri, B. Abbasi, Nastaran Ghanbari, Yegane Rostami, Zeinab Tajik, Mahdi Akhgari
{"title":"Benzene-1,3,5-tricarboxylic Acid-Functionalized Cherry Gum as a Novel and Recoverable Nanocatalyst for Efficient Synthesis of 1,4-polyhydroquinoline Derivatives","authors":"H. Ghafuri, B. Abbasi, Nastaran Ghanbari, Yegane Rostami, Zeinab Tajik, Mahdi Akhgari","doi":"10.3390/ecsoc-25-11717","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11717","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72923487","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: 0
A Thiophene-Based Dicyanovinyl as an Anion Chemosensor 噻吩基双氰乙烯基作为阴离子化学传感器
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11769
J. P. Castro, M. Raposo, S. Costa
{"title":"A Thiophene-Based Dicyanovinyl as an Anion Chemosensor","authors":"J. P. Castro, M. Raposo, S. Costa","doi":"10.3390/ecsoc-25-11769","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11769","url":null,"abstract":": In recent years, push–pull dicyanovinyl derivatives have been reported for several optical applications, including as fluorescent probes for cyanide ion detection. In the presence of cyanide ions, this type of compound exhibits an ICT mechanism associated with the addition of the cyanide ion to the β position of the dicyanovinyl group, due to the strong electron-withdrawing effect of the cyano groups. These structural changes caused by the addition reaction are accompanied by changes in the probe’s absorption and emission. In this work, we report a thiophene-based dicyanovinyl derivative and its prospective application as an anion chemosensor. The photophysical characterization was carried out in acetonitrile and aqueous acetonitrile solutions. Preliminary sensing assays in the presence of various anions of biological, medicinal, and environmental relevance were conducted, and the interaction with CN − was further explored through spectrophotometric titrations.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84235627","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
Study of Diels–Alder Reactions of Purpurogallin Tetraacetate with Various Dienophiles 四乙酸紫癜没食子素与多种亲二酚反应的研究
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11707
Salima Dib, B. Mostefa-Kara, D. Villemin, N. Bar
{"title":"Study of Diels–Alder Reactions of Purpurogallin Tetraacetate with Various Dienophiles","authors":"Salima Dib, B. Mostefa-Kara, D. Villemin, N. Bar","doi":"10.3390/ecsoc-25-11707","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11707","url":null,"abstract":": Purpurogallin or (6 E ,8 Z )-2,3,4,6-tetrahydroxy-5H-benzo[7]annulen-5-one is a benzotropo-lone possessing a dienic system and is known to inhibit TLR1/TLR2 activation pathway. We have recently described the easy green synthesis of purpurogallin from pyrogallol catalyzed by a copper complex or by vegetable oxidases. The purpurogalline was acetylated and the tetraacetate derivative thus obtained was engaged in a Diels Alder reaction with various dienophiles (benzoquinone, maleic anhydride, ethylmaleimide, phenylmaleimide, etc.). The results obtained will be presented and discussed.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75866780","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: 0
Design, Synthesis and Structural Characterization of a Novel Asymmetric Hydrazone-Thiosemicarbazone Ligand with the Aim of Obtaining Interesting Metallosupramolecular Architectures 一种新型不对称腙-硫代氨基脲配体的设计、合成和结构表征，旨在获得有趣的金属超分子结构
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11738
Sandra Fernández-Fariña, Isabel Velo-Heleno, M. Martínez‐Calvo, Ana M. González-Noya, Rosa Pedrido
{"title":"Design, Synthesis and Structural Characterization of a Novel Asymmetric Hydrazone-Thiosemicarbazone Ligand with the Aim of Obtaining Interesting Metallosupramolecular Architectures","authors":"Sandra Fernández-Fariña, Isabel Velo-Heleno, M. Martínez‐Calvo, Ana M. González-Noya, Rosa Pedrido","doi":"10.3390/ecsoc-25-11738","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11738","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86536590","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: 0
Identification of Vitamin D3 Hydroxylated Metabolites in Solanum glaucophyllum Leaves: Towards Its Biosynthetic Pathway Elucidation 青叶龙葵叶片维生素D3羟基化代谢物的鉴定及其生物合成途径的研究
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11686
M. A. Sequeira, Marcos J. Lo Fiego, Juan Daniel Coria, M. J. Castro, M. B. Faraoni
{"title":"Identification of Vitamin D3 Hydroxylated Metabolites in Solanum glaucophyllum Leaves: Towards Its Biosynthetic Pathway Elucidation","authors":"M. A. Sequeira, Marcos J. Lo Fiego, Juan Daniel Coria, M. J. Castro, M. B. Faraoni","doi":"10.3390/ecsoc-25-11686","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11686","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73695902","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: 0
Development and Validation of a Multi-Level Computational Protocol for Drug Repurposing in the Treatment of Bacterial Infections 细菌感染治疗中药物再利用多级计算方案的开发和验证
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11728
Tatiana F. Vieira, Rita P. Magalhães, S. Sousa
{"title":"Development and Validation of a Multi-Level Computational Protocol for Drug Repurposing in the Treatment of Bacterial Infections","authors":"Tatiana F. Vieira, Rita P. Magalhães, S. Sousa","doi":"10.3390/ecsoc-25-11728","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11728","url":null,"abstract":"","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73149001","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: 0
Quantitative Structure–Property Relationship for the Retention Index of Volatile and Semi-Volatile Compounds of Coffee 咖啡挥发性和半挥发性化合物保留指数的定量构效关系
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11731
C. Rojas, C. D. Alcívar León, E. Contreras Aguilar, Paola V. Mazón Ayala, Doménica Muñoz
{"title":"Quantitative Structure–Property Relationship for the Retention Index of Volatile and Semi-Volatile Compounds of Coffee","authors":"C. Rojas, C. D. Alcívar León, E. Contreras Aguilar, Paola V. Mazón Ayala, Doménica Muñoz","doi":"10.3390/ecsoc-25-11731","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11731","url":null,"abstract":": This study describes the development of a quantitative structure–property relationship to predict the retention indices of volatile and semi-volatile compounds identified in Arabica coffee samples from different geographical origins. The analytical method utilized rapid headspace solid-phase microextraction (HSSPME)–gas chromatography–time-of-flight mass spectrometry (GC-TOFMS) data measured in divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) fiber. A total of 102 molecules were optimized with the PM6/ZDO level of theory in order to calculate several molecular descriptors. Ordinary least squares were coupled with genetic algorithm–supervised variable subset selection to find the best three descriptors. For model validation, the dataset was split into a training set (70%) and a test set (30%). The quality of the model was evaluated by means of the coefficient of determination and the root-mean-square error.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74736510","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 of Triterpenoid-Derived α-Acyloxycarboxamides via Passerini Reaction 雀形尼反应合成三萜衍生物α-酰基羧酰胺
ECSOC-25 Pub Date : 2021-11-14 DOI: 10.3390/ecsoc-25-11785
Fidel Rodríguez-López, Hugo A. García-Gutiérrez, Rocío Gámez-Montaño
{"title":"Synthesis of Triterpenoid-Derived α-Acyloxycarboxamides via Passerini Reaction","authors":"Fidel Rodríguez-López, Hugo A. García-Gutiérrez, Rocío Gámez-Montaño","doi":"10.3390/ecsoc-25-11785","DOIUrl":"https://doi.org/10.3390/ecsoc-25-11785","url":null,"abstract":": Herein we describe the synthesis of a small series of α -acyloxycarboxamides via a facile and efficient one-pot procedure, employing a plant-derived triterpenoid as carboxylic acid component. The products were obtained in overall yields of 25 to 79%, while we scoped the effect of the nature of the aldehyde component on the reaction yields.","PeriodicalId":11441,"journal":{"name":"ECSOC-25","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72723018","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: 0
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