Results 41 to 50 of about 4,363 (249)

Synthesis, Reactions and Antioxidant Activity of 5-(3', 4'-dihydroxy-tetrahydrofuran-2'-yl)-2-methyl-3-carbohydrazide [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2019
In this manuscript, we describe the synthesis of the carbohydrazide 2. Acid-catalyzed condensation with several carbonyl compounds to afford the corresponding carbohydrazide derivatives 3-12.
Mohamed El Sadek, Samir Ahmed Magd, Seham Yassen Hassan, Mohamed A. Mostafa, Galile Yacouat   +4 more
doaj  

Structural Variations in the Central Heterocyclic Scaffold of Tripartite 2,6-Difluorobenzamides: Influence on Their Antibacterial Activity against MDR Staphylococcus aureus

Molecules, 2022
Five series of heterocyclic tripartite 2,6-difluorobenzamides, namely 1,2,3-triazoles, 1,2,4- and 1,3,4-oxadiazoles, analogs of reported model anti-staphylococcal compounds, were prepared. The purpose was to investigate the influence of the nature of the
Thibaut Barbier, Cédric Badiou, Floriane Davy, Yves Queneau, Oana Dumitrescu, Gérard Lina, Laurent Soulère   +6 more
doaj   +1 more source

Biological study on novel coumarinyl 1,3,4-oxadiazoles [PDF]

TURKISH JOURNAL OF CHEMISTRY, 2018
Coumarinyl 1, 3, 4-oxadiazoles were synthesized from Schiff bases and acetic anhydride. All compounds were characterized by melting points and their structures confirmed by mass, 1H and 13C NMR spectrometry. These novel coumarinyl derivatives were subjected to antibacterial, antifungal, antaflatoxigenic and antioxidant activity.
Valentina Pavić, Tihomir Kovač, Marija Kovač, Elizabeta Has-Schön, Ana Amić, Maja Molnar   +5 more
openaire   +2 more sources

Novel 4-thiazolidinone derivatives as agonists of benzodiazepine receptors [PDF]

A new series of 4-chloro-N-(2-(substitutedphenyl)-4-oxothiazolidin-3-yl)-2-phenoxybenzamide derivatives were designed, synthesized and biologically evaluated as anticonvulsant agents.
Almasirad, Ali, Amini, Mohsen, Ebadi, Seyed Abbas, Faizi, Mehrdad, Jahani, Reza, Lotfaliei, Mehrnaz, Rezaee, Elham, Tabatabai, Sayyed Abbas   +7 more
core   +1 more source

Identification and characterization of antibacterial compound(s) of cockroaches (Periplaneta americana) [PDF]

, 2017
Infectious diseases remain a significant threat to human health, contributing to more than 17 million deaths, annually. With the worsening trends of drug resistance, there is a need for newer and more powerful antimicrobial agents.
A Brüning, A Fodor, A Husain, A Idhayadhulla, A Kaplan, A Nemeikaitė-Čėnienė, A Pantosti, A Pawellek, A Rauf, A Richters, A Rico, A Sakunphueak, AJ Alanis, AM Alanazi, AM Carvalho, AM Griggs, AS Mayhoub, Ayaz Anwar, B Combourieu, B Sadek, B Villemagne, B Zarzycka, BE Bilich, BE Brown, BL Ginsborg, BV Le, C Amutha, C Rademacher, C Shiota, CA Morgan, CH Yen, CL Yuan, CMM Gómez, CT Makowski, D Duś, D Mehetre, D Raffa, D Vergara, DA Pisanenko, DJ Hardick, DT Youssef, E Braud, E Clynen, E Oberbauer, E Pery, E Rosatelli, EA Musad, EC Kormann, EM Flefel, EV Verbitskiy, F Puig-Basagoiti, FN Alvarez, FT Hatch, FZ Mharti, G Devasahayam, G Engelsma, G Liu, G Ramdani, G Ren, G Schlewer, G Şahin, GN Vassilev, H Chikhale, H Hatano, H Hussain, H Istanbullu, H Li, H Niaz, H Smetana, H Wang, HB Shin, HY Chen, I Karakaya, I Orhan, IC Zampini, J Győrfi, J Han, J La, J Mareddy, JD Guzman, JF Sun, JL Vennerstrom, JM Ontoria, JP Rappai, JR Bauquier, JW Weaver, JY Yang, K Iwasa, K Philip, K Tangdenpaisal, K Wada, KW Leal, KW Park, L Sun, LJ Huang, M Akhter, M al-Rashida, M Amiche, M Brunskole Švegelj, M Gökce, M Jahangir, M Ma, M Miyazawa, M Pawelczap, M Sagheer, M Salzet, M Zhu, MA Aziz-ur-Rehman Abbasi, MA Orabi, MC Enright, MD Bachi, MH Metz-Boutigue, MIC De Troconis, MJ Arrowood, MJ Frederico, MM Alam, MM Khafagy, MN Zemtsova, MT Mackmull, Muhammad Raza Shah, N Desplaces, N Mashhoon, N Sunduru, N Özbek, NA Khan, NA Khan, NA Lack, Naveed Ahmed Khan, ND Eddington, NG Anthony, NK Roy, NR Gonewar, O Perwitasari, OO Ajani, OO Peter, P Armati, P Bulet, P Chen, P Deprez, P Funk, P Kumar, P Nordmann, P Samadhiya, PB Savage, Peter J. Heard, PL Taylor, Q Zheng, QC Fu, R Bonnett, R Bonnett, R De Simone, R Ruckli, R Wilson, RA Tapia, RL Groves, Ruqaiyyah Siddiqui, S Antoniou, S Bondock, S Celikler, S Cesarini, S Elliott, S Ganguli, S George, S Indumathi, S Kasai, S Lee, S Minami, S Nagarajan, S Wirth, S Yang, SA Lujan, Salwa Mansur Ali, SC Bang, SC Basak, Seng-Kai Ong, SF Liou, SM Capitosti, T Antonucci, T Ellendorff, T Ishikawa, TB Emran, TC Lima, TC Yang, TES Ali, TP Yin, TR Burke, TS Tiuman, TT Cushnie, TW Sanchez, U Guzzi, U Singh, V Bhardwaj, V Exarchou, V Facchinetti, V Mihailovic, V Miliukienė, VK Bajpai, VV Kouznetsov, VV Kouznetsov, W He, X He, XD Wang, XJ Gao, XN Wang, XP Sun, Y Dai, Y Fang, Y Girard, Y Take, Y Tang, Y Zhao, Y Özkay, YH Seo, YLN Murthy, YM Sinam, Z Su   +215 more
core   +1 more source

SYNTHESIS AND CHARACTERIZATION OF [(5-MERCAPTO-1,3,4-OXADIAZOL-2-YL)ARYL]-3,5-DIARYL-4,5-DIHYDRO-1H-PYRAZOLE-1-CARBOTHIOAMIDES [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2011
The synthesis and characterization of [(5-mercapto-1,3,4-oxadiazol-2-yl)aryl]-3,5-diaryl-4,5-dihydro-1Hpyrazole-1-carbothioamides - derivatives of pyrazolines and 5-[4(3)-isothiocyanatophenyl]-2-thio-1,3,4-oxadiazoles were realized.
Zinaida Ribkovskaia, Serghei Pogrebnoi, Alic Barba, Fliur Macaev   +3 more
doaj  

Synthesis and Reactions of Some New Heterocyclic Carbohydrazides and Related Compounds as Potential Anticancer Agents

Molecules, 2003
Acylation of 3-hydrazino-5,6-diphenyl-1,2,4-triazine (2) and hydrazine hydrate (7) with 4-aryl-1,3,7-triphenyl-8-oxa-1,2,6-triazaspiro[4.4]nona-2,6-dien-9-ones 5a,b gave the corresponding heterocyclic carbohydrazides 6a,b and 8a,b respectively ...
Nasser S. A. M. Khalil, Mohga M. Eid, Abdel Kader Mansour   +2 more
doaj   +1 more source

Synthesis and Antimicrobial Activity of Some New 1, 4-Benzothiazine Containing Thiosemicarbazides and 1, 3, 4-Oxadiazole Derivatives

E-Journal of Chemistry, 2012
A series of novel 3- methyl-7-substituted-4H,4-benzothiazine-2-carbohydrazide (3a-e) and corresponding thiosemicarbazides (4-a-q); 2-[3-methyl-7-substituted- 4H -1, 4-benzothiazine-2-yl]-N-(aryl) hydrazine carbothiamide have been synthesized.
Bhikan J Khairnar, Rahul S. Salunke, Premchand B. Patil, Sanjay A . Patil, Rajeshwar J . Kapade, Pravin S. Girase, Bhata R. Chaudhari   +6 more
doaj   +1 more source

Synthesis and biological evaluation of 1,2,4-triazoles and 1,3,4-oxadiazoles derivatives linked to 1,4-dihydropyridines scaffold

Acta Chimica Slovenica, 2017
A series of diethyl-2,6-dimethyl-4-phenyl-1,4-dihydropyridine-3,5-dicarboxylate derivative coupled to 1,3,4-oxadiazole-5-thiones and 1,2,4-triazole-5-thiones moieties at C2,C6 positions of 1,4-dihydropyridine ring system was prepared.
Maghsoud Ziaie, Karim Akbaridilmaghani, Amir Tukmechi   +2 more
doaj   +1 more source

Reaktionen von 3-Dimethylamino-2,2-dimethyl-2H-azirin mit aromatischen Carbonsäurehydraziden

CHIMIA, 1978
Reaction of 3-dimethylamino-2,2-dimethyl-2H-azirine (1) with salicylic acid hydrazide (2c) in acetonitrile at room temperature gives the amidrazone 3c as a primary product in 78% yield. Cyclization of 3c in methanol leads to the 1,2,5,6-tetrahydro-1,2,4-
Stanislav Chaloupka, Heinz Heimgartner
doaj   +1 more source