Person: ŞENOL, HALIL
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Publication Metadata only Synthesis and rearrangement reactions of 1,4-dihydrospiro[1,4-methanonaphthalene-9,1′-cyclopropane] derivatives(2018-10-04T00:00:00Z) Bayrak, Cetin; Senol, Halil; Sirtbasi, Sedef; Şahin, Ertan; Menzek, Abdullah; ŞENOL, HALILPublication Open Access Synthesis of oleanolic acid hydrazide-hydrazone hybrid derivatives and investigation of their cytotoxic effects on A549 human lung cancer cells(2022-01-01T00:00:00Z) Şenol, Halil; Mercümek, Berre; Şahin, Rabia Büşra; Kapucu, Halil Burak; Hacıosmanoğlu, Ebru; ŞENOL, HALIL; MERCÜMEK, BERRE; HACIOSMANOĞLU, EBRUPublication Open Access Synthesis of ursolic acid arylidene-hydrazide hybrid compounds and investigation of their cytotoxic and antimicrobial effects(2022-03-01T00:00:00Z) Şenol, Halil; Mercümek, Berre; Kapucu, Halil Burak; Hacıosmanoğlu, Ebru; Dinç, Harika Öykü; Yüksel Mayda, Pelin; ŞENOL, HALIL; MERCÜMEK, BERRE; HACIOSMANOĞLU, EBRU; DİNÇ, HARİKA ÖYKÜPublication Metadata only Synthesis of Oleanolic Acid Analogues and Their Cytotoxic Effects on 3T3 Cell Line(2018-01-01) Tuncay, Salih; Kocyigit, ABDÜRRAHİM; SEÇEN, Hasan; Ocal, Nuket; Topcu, GÜLAÇTI; Guler, ERAY METİN; ŞENOL, HALIL; GÜLER, ERAY METİN; KOÇYİĞİT, ABDÜRRAHİM; TOPÇU, GÜLAÇTIBackground: Oleanolic acid (OA) is a known natural compound with many important biological activities. Thirteen oleanolic acid derivatives linked at C-3 and C-28 were synthesized and their structures were confirmed by H-1- and C-13 NMR and mass spectral analyses. Among them, compounds 4, 6, 8-10, 12, 13 were synthesized for the first time. They were evaluated for their cytotoxic activity. They showed proliferative effect at low concentrations while cytotoxic effect was observed at high concentrations in a dose dependent manner.Publication Metadata only Synthesis and initial evaluation of efficacy of olean-12-en-28-ol, 3 beta-pentacosanoate for the symptomatic treatment of multiple sclerosis(2019-07-01) DAĞ, AYDAN; Sen, A.; ŞENOL, HALİL; Kale, E.; TOPÇU, GÜLAÇTI; ŞENOL, HALIL; DAĞ, AYDAN; TOPÇU, GÜLAÇTIPublication Metadata only Synthesis of new fatty acid derivatives of oleanane and ursane triterpenoids and investigation of their in vitro cytotoxic effects on 3T3 fibroblast and PC3 prostate cancer cell lines(2020-09-01T00:00:00Z) Şenol, Halil; Çokuludağ, Kübra; Aktaş, Asude Sena; Atasoy, Sezen; Dağ, Aydan; Topçu, Gülaçtı; ŞENOL, HALIL; ATASOY, SEZEN; DAĞ, AYDAN; TOPÇU, GÜLAÇTIPublication Metadata only Cycloaddition reaction of spiro[2.4]hepta-4,6-dien-1-ylmethanol and PTAD: a new rearrangement(2016-05-19T00:00:00Z) Senol, Halil; Bayrak, Cetin; Menzek, Abdullah; Şahin, Ertan; Karakus, Murat; ŞENOL, HALILReaction of spiro[2.4]hepta-4,6-dien-1-ylmethanol (3) with phenyltriazolinedione (PTAD) gave 4-phenyl-1-[(3aR(S),6S(R))-1a, 2,3a, 6-tetrahydro-1H-cyclopenta[b]cyclopropa[c]furan-6-yl]-1,2,4-triazolidine-3,5-dione (7) via a novel rearrangement. The structure of this rearranged product was determined by spectroscopic methods and by experimentation. Influences of functional groups on the rearrangement and formation of 7 were discussed. (C) 2016 Elsevier Ltd. All rights reserved.Publication Metadata only Investigation of the potential use of Euphorbia latex as an insecticide in biological control against Dendroctonus micans(2021-06-01T00:00:00Z) Gülmez, Özlem; Albayrak İskender, Nurcan; Şenol, Halil; Algur, Ömer Faruk; ŞENOL, HALILPublication Open Access Natural Alkaloids as Potential Anti-Coronavirus Compounds(2020-12-01T00:00:00Z) Topçu, Gülaçtı; Şenol, Halil; Alim Toraman, Gülbahar Özge; Altan, Vecdi Melih; TOPÇU, GÜLAÇTI; ŞENOL, HALIL; ALİM TORAMAN, GÜLBAHAR ÖZGE; ALTAN, VECDİ MELİHCoronaviruses are causative agents of the last three epidemics/pandemic; Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV), Middle East Respiratory Syndrome-Coronavirus (MERS-CoV) and the last one Severe Acute Respiratory Syndrome-Cov-2 (SARS-CoV-2). Although meta-analysis of treatment studies against these three coronaviruses found no clear benefit of any spesific regimen, currently, remdesivir and favipiravir are promising potential therapies for SARS-CoV-2. On the other hand, since natural products have always played a crucial role in drug discovery and development process against various diseases, many groups in the world, are now trying to find new or repurposed natural or naturally originated drugs against viruses and coronaviruses. Secondary metabolites of the plants, particularly alkaloids and terpenoids have been exhibited strong antimicrobial and anticancer activities besides synthetic drugs and other natural compounds (nucleosides and nucleotides and bacterial and fungi originated ones). The first isolated secondary metabolites have been converted into important drugs since 1800’s such as morphine, codeine, cocaine, and quinine have alkaloid skeleton as well as some of the recent anticancer drugs vinblastine, vincristine, taxol, etc. This review includes the last two decades of publications about natural alkaloids rather than their plant extracts which showed some promising results against coronaviruses. Marine organisms are also another rich source to discover new lead drugs, however they were excluded in the present review article.