5-Oxo-dihydropyranopyran derivatives as anti-proliferative agents; synthesis, biological evaluation, molecular docking, MD simulation, DFT, and in-silico pharmacokinetic studies
Sara Ranjbar,
Paria Sadeghian,
Sara Khademian,
Mina Emami,
Zahra Pakrouh Jahromi,
Seyedeh Habibeh Mirmajidi,
Fateme Zare,
Manica Negahdaripour,
Younes Ghasemi,
Mehdi Khoshneviszadeh
Affiliations
Sara Ranjbar
Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Computational Vaccine and Drug Design Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Corresponding author. Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, PO Box 71345-1583, Shiraz, Iran.
Paria Sadeghian
Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
Sara Khademian
Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
Mina Emami
Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
Zahra Pakrouh Jahromi
Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
Seyedeh Habibeh Mirmajidi
Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
Fateme Zare
Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
Manica Negahdaripour
Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Computational Vaccine and Drug Design Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
Younes Ghasemi
Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
Mehdi Khoshneviszadeh
Computational Vaccine and Drug Design Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran; Corresponding author. Department of Medicinal Chemistry, School of Pharmacy, Shiraz University of Medical Sciences, PO Box 71345-3388, Shiraz, Iran.
A series of ethyl 2-amino-7-methyl-5-oxo-4-phenyl-4,5-dihydropyrano[4,3-b]pyran-3-carboxylate derivatives (4a-j) bearing different substitutions on the C4-phenyl ring was synthesized. The anti-proliferative activity of all the synthesized compounds was assessed against two human cancer-cell lines, including SW-480 and MCF-7, by using MTT method. Derivatives 4g, 4i, and 4j, possessing 4-NO2, 4-Cl, and 3,4,5-(OCH3)3 substitutions, were found to be the most potent compounds against both cell lines. The obtained IC50 values for 4g, 4i, and 4j were 34.6, 35.9, and 38.6 μM against SW-480 cells and 42.6, 34.2, and 26.6 μM against MCF-7 cells, respectively. Evaluation of the free radical scavenging potential of the compounds against DPPH radicals showed the highest result for compound 4j with an EC50 value of 580 μM. Molecular docking studies revealed the compounds were well accommodated within the binding site of cyclin-dependent kinase-2 (CDK2) with binding energies comparable to those of DTQ (the co-crystallized inhibitor) and BMS-265246 (a well-known CDK2 inhibitor). Molecular dynamics simulation studies confirmed the interactions and stability of the 4g-CDK2 complex. All derivatives, except 4g, were predicted to comply with the drug-likeness rules. Compound 4j may be proposed as an anti-cancer lead candidate for further studies due to the promising findings from in-silico pharmacokinetic studies, such as high GI absorption, not being a P-gp substrate, and being a P-gp inhibitor. Density functional theory (DFT) analysis was performed at the B3LYP/6–311++G (d,p) level of theory to examine the reactivity or stability descriptors of 4d, 4g, 4i, and 4j derivatives. The highest value of energy gap between HOMO and LUMO and thermochemical parameters were obtained for 4i and 4j.
