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Anticancer and Anti-Inflammatory Activities of Some New Pyrazolo[3,4-b]pyrazines. 2018

Hussein El-Kashef, and Talaat El-Emary, and Pierre Verhaeghe, and Patrice Vanelle, and Maha Samy
Chemistry Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt. elkashef@aun.edu.eg.

New derivatives of pyrazolo[3,4-b]pyrazines and related heterocycles were synthesized using 5-amino-3-methyl-4-nitroso-1-phenyl-pyrazole (1) as a starting material. The 5-acetyl derivative 15 was shown to be a useful key intermediate for the synthesis of several derivatives of pyrazolopyrazines. Some of the prepared compounds were evaluated for their anti-inflammatory and anti-breast cancer MCF-7 cell line activities. SAR study showed that compounds 15 and 29 exhibited remarkable anti-inflammatory activity, where 15 showed the same activity as that of the reference drug indomethacin. On the other hand, compounds 25i, 25j showed very significant inhibitory activity (p < 0.001) against MCF-7 breast cancer cell line.

UI MeSH Term Description Entries
D011719 Pyrazines A heterocyclic aromatic organic compound with the chemical formula C4H4N2. Pyrazine
D011720 Pyrazoles Azoles of two nitrogens at the 1,2 positions, next to each other, in contrast with IMIDAZOLES in which they are at the 1,3 positions.
D002351 Carrageenan A water-soluble extractive mixture of sulfated polysaccharides from RED ALGAE. Chief sources are the Irish moss CHONDRUS CRISPUS (Carrageen), and Gigartina stellata. It is used as a stabilizer, for suspending COCOA in chocolate manufacture, and to clarify BEVERAGES. Carrageenin,iota-Carrageenan,kappa-Carrageenan,lambda-Carrageenan,iota Carrageenan,kappa Carrageenan,lambda Carrageenan
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D004487 Edema Abnormal fluid accumulation in TISSUES or body cavities. Most cases of edema are present under the SKIN in SUBCUTANEOUS TISSUE. Dropsy,Hydrops,Anasarca
D006573 Heterocyclic Compounds, 1-Ring Organic compounds that contain a ring structure made up of carbon and one or more additional elements such as nitrogen and oxygen. Heterocyclic Cpds, 1-Ring,1-Ring Heterocyclic Compounds,1-Ring Heterocyclic Cpds,Heterocyclic Compounds, 1 Ring,Heterocyclic Cpds, 1 Ring
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000893 Anti-Inflammatory Agents Substances that reduce or suppress INFLAMMATION. Anti-Inflammatory Agent,Antiinflammatory Agent,Agents, Anti-Inflammatory,Agents, Antiinflammatory,Anti-Inflammatories,Antiinflammatories,Antiinflammatory Agents,Agent, Anti-Inflammatory,Agent, Antiinflammatory,Agents, Anti Inflammatory,Anti Inflammatories,Anti Inflammatory Agent,Anti Inflammatory Agents
D000970 Antineoplastic Agents Substances that inhibit or prevent the proliferation of NEOPLASMS. Anticancer Agent,Antineoplastic,Antineoplastic Agent,Antineoplastic Drug,Antitumor Agent,Antitumor Drug,Cancer Chemotherapy Agent,Cancer Chemotherapy Drug,Anticancer Agents,Antineoplastic Drugs,Antineoplastics,Antitumor Agents,Antitumor Drugs,Cancer Chemotherapy Agents,Cancer Chemotherapy Drugs,Chemotherapeutic Anticancer Agents,Chemotherapeutic Anticancer Drug,Agent, Anticancer,Agent, Antineoplastic,Agent, Antitumor,Agent, Cancer Chemotherapy,Agents, Anticancer,Agents, Antineoplastic,Agents, Antitumor,Agents, Cancer Chemotherapy,Agents, Chemotherapeutic Anticancer,Chemotherapy Agent, Cancer,Chemotherapy Agents, Cancer,Chemotherapy Drug, Cancer,Chemotherapy Drugs, Cancer,Drug, Antineoplastic,Drug, Antitumor,Drug, Cancer Chemotherapy,Drug, Chemotherapeutic Anticancer,Drugs, Antineoplastic,Drugs, Antitumor,Drugs, Cancer Chemotherapy

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