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Sci Rep ; 12(1): 13880, 2022 08 16.
Article in English | MEDLINE | ID: covidwho-1991664


A series of 1″-(alkylsulfonyl)-dispiro[indoline-3,2'-pyrrolidine-3',3″-piperidine]-2,4″-diones 6a‒o has been synthesized through regioselective multi-component azomethine dipolar cycloaddition reaction of 1-(alkylsulfonyl)-3,5-bis(ylidene)-piperidin-4-ones 3a‒h. X-ray diffraction studies (6b‒d,h) confirmed the structures. The majority of the synthesized analogs reveal promising antiproliferation properties against a variety of human cancer cell lines (MCF7, HCT116, A431 and PaCa2) with good selectivity index towards normal cell (RPE1). Some of the synthesized agents exhibit potent inhibitory properties against the tested cell lines with higher efficacies than the standard references (sunitinib and 5-fluorouracil). Compound 6m is the most potent. Multi-targeted inhibitory properties against EGFR and VEGFR-2 have been observed for the synthesized agents. Flow cytometry supports the antiproliferation properties and shows the tested agents as apoptosis and necrosis forming. Vero cell viral infection model demonstrates the anti-SARS-CoV-2 properties of the synthesized agents. Compound 6f is the most promising (about 3.3 and 4.8 times the potency of the standard references, chloroquine and hydroxychloroquine). QSAR models explain and support the observed biological properties.

Antineoplastic Agents , Spiro Compounds , Antineoplastic Agents/chemistry , Cell Line, Tumor , Humans , Indoles , Molecular Structure , SARS-CoV-2 , Spiro Compounds/chemistry , Spiro Compounds/pharmacology
Bioorg Chem ; 117: 105466, 2021 12.
Article in English | MEDLINE | ID: covidwho-1499653


Series of piperidone-salicylate conjugates were synthesized through the reaction of 3E,5E-bis(arylidene)-4-piperidones with the appropriate acid chloride of acetylsalicylate in the presence of triethylamine. All the synthesized conjugates reveal antiproliferative properties against A431 (squamous skin) cancer cell line with potency higher than that of 5-fluorouracil. Many of the synthesized agents also exhibit promising antiproliferative properties against HCT116 (colon) cancer cell line, of which 5o and 5c are the most effective with 12.9, 9.8 folds potency compared with Sunitinib. Promising activity is also shown against MCF7 (breast) cancer cell line with 1.19, 1.12 folds relative to 5-fluorouracil. PI-flow cytometry of compound 5c supports the arrest of cell cycle at G1-phase. However, compound 5o and Sunitinib arrest the cell cycle at S-phase. The synthesized conjugates can be considered as multi-targeted tyrosine kinase inhibitors due to the promising properties against VEGFR-2 and EGFR in MCF7 and HCT116. CDOCKER studies support the EGFR inhibitory properties. Compounds 5p and 5i possessing thienylidene heterocycle are anti-SARS-CoV-2 with high therapeutic indices. Many of the synthesized agents show enhanced COX-1/2 properties than aspirin with better selectivity index towards COX-2 relative to COX-1. The possible applicability of the potent candidates discovered as antitumor and anti-SARS-CoV-2 is supported by the safe profile against normal (non-cancer, RPE1 and VERO-E6) cells.

Antineoplastic Agents/chemistry , Antiviral Agents/chemistry , Aspirin/chemistry , Curcumin/chemistry , Antineoplastic Agents/metabolism , Antineoplastic Agents/pharmacology , Antiviral Agents/metabolism , Antiviral Agents/pharmacology , COVID-19/pathology , COVID-19/virology , Cell Cycle Checkpoints/drug effects , Cell Line, Tumor , Cell Survival/drug effects , Cyclooxygenase 1/chemistry , Cyclooxygenase 1/metabolism , Cyclooxygenase 2/chemistry , Cyclooxygenase 2/metabolism , Drug Design , ErbB Receptors/antagonists & inhibitors , ErbB Receptors/metabolism , Humans , Inhibitory Concentration 50 , Molecular Docking Simulation , Protein Binding , SARS-CoV-2/drug effects , SARS-CoV-2/isolation & purification , Vascular Endothelial Growth Factor Receptor-2/antagonists & inhibitors , Vascular Endothelial Growth Factor Receptor-2/metabolism