Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives

In this paper, a series of new substituted-5-pyrazolones were first synthesized, then formulated by the Vilsmeier−Haack reaction to obtain substituted-4-carbaldehyde-5-pyrazolones. In the final step, when urea was reacted with formulated pyrazolones, we found that, instead of the C=N bond...

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Main Authors: Aliye Gediz Erturk, Hilal Omerustaoglu
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/25/4/900
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author Aliye Gediz Erturk
Hilal Omerustaoglu
author_facet Aliye Gediz Erturk
Hilal Omerustaoglu
author_sort Aliye Gediz Erturk
collection DOAJ
description In this paper, a series of new substituted-5-pyrazolones were first synthesized, then formulated by the Vilsmeier&#8722;Haack reaction to obtain substituted-4-carbaldehyde-5-pyrazolones. In the final step, when urea was reacted with formulated pyrazolones, we found that, instead of the C=N bond in azomethine form, the compounds tautomerized to form a series of novel pyrazole-4-ylidenemethylurea structures. The structures of these compounds were elucidated by FTIR, <sup>1</sup>H, <sup>13</sup>C NMR, LC-MS/MS, and elemental analysis methods. The cytotoxic and antioxidant effects of substituted 5-pyrazolones and their pyrazolone-urea derivatives were investigated in metastatic A431 and noncancerous HaCaT human keratinocytes by a mitochondrial activity test. The effects of the compounds on the migration of cancerous and noncancerous cell lines were investigated by using a cell scratch assay. The General Linear Model, Statistical Package for Social Sciences (SPSS v26) was used to determine if there was a statistically significant difference between the control and the treatment groups. Four of the nine compounds showed an antioxidant effect. All 5-pyrazolone-urea compounds showed higher toxicity (<i>p</i> &lt; 0.05) in cancerous A431 cells compared to noncancerous cells at all time points. All compounds also showed a biphasic hormetic effect. Four of the nine compounds inhibited cell migration.
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spelling doaj.art-5a4170b52c45479ab629c115726100f62022-12-22T01:41:33ZengMDPI AGMolecules1420-30492020-02-0125490010.3390/molecules25040900molecules25040900Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea DerivativesAliye Gediz Erturk0Hilal Omerustaoglu1Department of Chemistry, Faculty of Science &amp; Arts, Ordu University, 52200 Ordu, TurkeyDepartment of Chemistry, Faculty of Science &amp; Arts, Ordu University, 52200 Ordu, TurkeyIn this paper, a series of new substituted-5-pyrazolones were first synthesized, then formulated by the Vilsmeier&#8722;Haack reaction to obtain substituted-4-carbaldehyde-5-pyrazolones. In the final step, when urea was reacted with formulated pyrazolones, we found that, instead of the C=N bond in azomethine form, the compounds tautomerized to form a series of novel pyrazole-4-ylidenemethylurea structures. The structures of these compounds were elucidated by FTIR, <sup>1</sup>H, <sup>13</sup>C NMR, LC-MS/MS, and elemental analysis methods. The cytotoxic and antioxidant effects of substituted 5-pyrazolones and their pyrazolone-urea derivatives were investigated in metastatic A431 and noncancerous HaCaT human keratinocytes by a mitochondrial activity test. The effects of the compounds on the migration of cancerous and noncancerous cell lines were investigated by using a cell scratch assay. The General Linear Model, Statistical Package for Social Sciences (SPSS v26) was used to determine if there was a statistically significant difference between the control and the treatment groups. Four of the nine compounds showed an antioxidant effect. All 5-pyrazolone-urea compounds showed higher toxicity (<i>p</i> &lt; 0.05) in cancerous A431 cells compared to noncancerous cells at all time points. All compounds also showed a biphasic hormetic effect. Four of the nine compounds inhibited cell migration.https://www.mdpi.com/1420-3049/25/4/9005-pyrazoloneurea derivativescell proliferationantioxidant activity
spellingShingle Aliye Gediz Erturk
Hilal Omerustaoglu
Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives
Molecules
5-pyrazolone
urea derivatives
cell proliferation
antioxidant activity
title Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives
title_full Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives
title_fullStr Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives
title_full_unstemmed Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives
title_short Synthesis and Cytotoxic Evaluation of Some Substituted 5-Pyrazolones and Their Urea Derivatives
title_sort synthesis and cytotoxic evaluation of some substituted 5 pyrazolones and their urea derivatives
topic 5-pyrazolone
urea derivatives
cell proliferation
antioxidant activity
url https://www.mdpi.com/1420-3049/25/4/900
work_keys_str_mv AT aliyegedizerturk synthesisandcytotoxicevaluationofsomesubstituted5pyrazolonesandtheirureaderivatives
AT hilalomerustaoglu synthesisandcytotoxicevaluationofsomesubstituted5pyrazolonesandtheirureaderivatives