Results 201 to 210 of about 36,585 (245)

Quantum Mechanical Study of the Solvent Effect of Substituted Pyrazole Moieties and Relative Stabilities Under the Presence Of Electron Donating And Withdrawing Groups

Anik Ghosh, Arupa Ganguly, Prasenjit Sen, Fiza Rashida Khan, Nafisa Siddiqui, Jyotirmayee Pradhan, Pragya Khamari, Subrata Mahanta   +7 more
openalex   +1 more source

Synthesis of Novel Tetra-Substituted Pyrazole Derivatives Using Microwave Irradiation and Their Anti-Leukemic Activity Against Jurkat Cells. [PDF]

Molecules
Machado FP, Campos MC, Echevarria-Lima J, Sangi DP, Serpa C, Chaves OA, Echevarria A.   +6 more
europepmc   +1 more source

Corrosion Inhibitionof Carbon Steel in Acidic Environments:Mechanistic Insights and Protective Effects of Triazole-Pyrazole DerivativeInhibitors

Nawal Setti (22444565), Asma Barrahi (20730461), Youssef Draoui (22444568), Mohamed Maatallah (22444571), Mohamed El Faydy (18706308), Smail Radi (22444574), Burak Dikici (22444577), Halima Outada (22444580), Abdelkader Zarrouk (1900912), Ali Dafali (20730467)   +9 more
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Synthesis of pyrazoles and condensed pyrazoles

Journal of Heterocyclic Chemistry, 1999
AbstractThis review introduces the synthesis of various pyrazoles reported by us and some other research groups during 1989–1998. Some of papers in this review deal with the development of potent pyrazoles or with the synthesis of potential pyrazoles aiming at agrochemicals and/or drugs.
Kenzi Makino, Ho Sik Kim, Yoshihisa Kurasawa   +2 more
openaire   +1 more source

Pyrazoles. III. PMR studies of pyrazoles

Recueil des Travaux Chimiques des Pays-Bas, 1967
AbstractSubstituents with electron withdrawing capacities are found to induce a paramagnetic displacement of the chemical shifts of protons and methyl groups in the remaining positions of the pyrazole ring. For the 4‐position this effect is considered to be due primarily to resonance interaction of substituent and pyrazole ring.
Clarisse L. Habraken, H. J. Munter, J. C. P. Westgeest   +2 more
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Pyrazole: preclinical reassessment

Investigational New Drugs, 1988
Pyrazole (NSC-45410) is a low molecular weight, heterocyclic compound which has been considered for reevaluation in the clinic as a potential cytotoxic agent (Fig. 1). Discovered in 1893, pyrazole is best known as an inhibitor of liver alcohol dehydrogenase (ki = 0.2 uM), and as a result, has been used extensively in studies of alcohol metabolism.
P J, O'Dwyer, S A, King, J, Plowman, C K, Grieshaber, D F, Hoth, B, Leyland-Jones   +5 more
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Pyrazole–coumarin and pyrazole–quinoline chalcones as potential antitubercular agents

Archiv der Pharmazie, 2020
AbstractPyrazole, coumarin, and quinoline are medicinally important moieties. In this study, two series of novel pyrazole–coumarin chalcones and pyrazole–quinoline chalcones were synthesized using multiple‐step reactions. All the synthesized compounds were well characterized using different spectroscopic techniques including 1H and 13C nuclear magnetic
Gautam Kumar, Vagolu Siva Krishna, Dharmarajan Sriram, Sanjay M. Jachak   +3 more
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ChemInform Abstract: Synthesis of Pyrazoles and Condensed Pyrazoles

ChemInform, 1999
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Kenzi Makino, Ho Sik Kim, Yoshihisa Kurasawa   +2 more
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Pyrazole analogues of prazosin

Il Farmaco, 1998
A series of analogues of prazosin, in which 1-methyl or 1-phenylpyrazole moieties were substituted for the furan ring, were synthesized and studied for their alpha 1-adrenoceptor antagonist activity. The role of the five member heterocyclic substructures in determining the affinity for the alpha 1-receptor is briefly discussed.
ERMONDI, Giuseppe, BOSCHI, Donatella, DI STILO, Antonella, TIRONI, Carla, GASCO, Alberto   +4 more
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