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Design, Synthesis, Anticancer Evaluation and Molecular Modeling of Novel Estrogen Derivatives.

ABSTRACT: A series of estrone derivatives 3?8 was designed and synthesized using estrone arylmethylenes 2a,b as starting materials and their structures were confirmed by different spectral data and elemental analyses. All the newly synthesized compounds exhibited potent in vitro and in vivo cytotoxic activities against breast cancer cell lines. In addition, all compounds were subjected to in vitro and in vivo inhibition assays for EGFR and VEGFR-2 kinases as well as p53 ubiquitination activity to obtain more details about their mechanism of action. Based on the promising results, a molecular docking study was investigated for the most representative compound 5a against the two targets, EGFR and VEGFR-2 kinases, to assess its binding affinity, hoping to rationalize and obtain potent anticancer agents in the future.

SUBMITTER: Amr AEE

PROVIDER: S-EPMC6385123 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Design, Synthesis, Anticancer Evaluation and Molecular Modeling of Novel Estrogen Derivatives.

Amr Abd El-Galil E AEE Elsayed Elsayed A EA Al-Omar Mohamed A MA Badr Eldin Hanan O HO Nossier Eman S ES Abdallah Mohamed M MM

Molecules (Basel, Switzerland) 20190124 3

A series of estrone derivatives 3⁻8 was designed and synthesized using estrone arylmethylenes 2a,b as starting materials and their structures were confirmed by different spectral data and elemental analyses. All the newly synthesized compounds exhibited potent in vitro and in vivo cytotoxic activities against breast cancer cell lines. In addition, all compounds were subjected to in vitro and in vivo inhibition assays for EGFR and VEGFR-2 kinases as well as p53 ubiquit ...[more]

PMID: 30678347

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Project description:Pyrimidines play an important role in modern medical fields. They have a wide spectrum of biological activities such as antimicrobial, anticancer, anti-allergic, anti-leishmanial, antioxidant agents and others. Moreover, in recent years, 3,4-dihydropyrimidin-2(1H)ones have attracted researchers to synthesize them via Biginelli reaction and evaluate their antihypertensive activities as bioisosters of Nifedipine, which is a famous calcium channel blocker. Our new target compounds were prepared through one-pot reaction of thiourea 1, ethyl acetoacetate 2 and/or 1H-indole-2-carbaldehyde, 2-chloroquinoline-3-carbaldehyde, 1,3-diphenyl-1H-pyrazole-4-carbaldehyde, 3a-c in acid medium (HCl) yielding pyrimidines 4a-c, which in turn were hydrolyzed to carboxylic acid derivatives 5a-c which were chlorinated by SOCl2 to give acyl chlorides 6a-c. Finally, the latter were reacted with some selected aromatic amines, namely, aniline, p-toluidine and p-nitroaniline, producing amides 7a-c, 8a-c, and 9a-c. The purity of the prepared compounds was examined via TLC monitoring, and structures were confirmed by different spectroscopic techniques such as IR, 1HNMR, 13CNMR, and mass spectroscopy. The in vivo evaluation of the antihypertensive activity revealed that compounds 4c, 7a, 7c, 8c, 9b and 9c had comparable antihypertensive properties with Nifedipine. On the other hand, the in vitro calcium channel blocking activity was evaluated by IC50 measurement and results revealed that compounds 4c, 7a, 7b, 7c, 8c, 9a, 9b, and 9c had comparable calcium channel blocking activity with the reference Nifedipine. Based on the aforementioned biological results, we selected compounds 8c and 9c to be docked onto Ryanodine and dihydropyridine receptors. Furthermore, we developed a structure-activity relationship. The designed compounds in this study show promising activity profiles in reducing blood pressure and as calcium channel blockers, and could be considered as new potential antihypertensive and/or antianginal agents.

Dataset Information

Design, Synthesis, Anticancer Evaluation and Molecular Modeling of Novel Estrogen Derivatives.

Publications

Design, Synthesis, Anticancer Evaluation and Molecular Modeling of Novel Estrogen Derivatives.

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