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Synthesis of dihydroisoindolo[2,1-a]quinolin-11-ones, their in silico ADMET properties and in vitro antitumor activities.

ABSTRACT: We evaluated the antitumoral activity of diverse series of 5-aryl-dihydroisoindolo[2,1-a]quinolin-11-ones, AIIQ (Aryl IsoIndolo-Quinoline, 4a-m), and 5-vinyl dihydroisoindolo[2,1-a]quinolin-11-ones, VIIQ (Vinyl IsoIndolo-Quinoline, 6a-l), obtained using three component imino Diels-Alder (DA) reaction of anilines, o-phthalaldehyde and dienophiles. The first series was obtained in previous work employing isoeugenol and anethole as dienophiles, whereas the vinyl series was synthesized in high yields (75-90%) using isoprene as a dienophile. The cytotoxic activity of both AIIQ and VIIQ series was evaluated against four cancer lines, identifying a new lead compound 4h from the AIIQ series, active against MCF-7 (310 nM), SKBR3 (1434 nM), PC3 (210 nM) and HeLa (79 nM) cells with high selectivity. In addition, in silico ADMET properties for the two series were assessed and discussed.

SUBMITTER: Merchan-Arenas DR

PROVIDER: S-EPMC9057833 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Synthesis of dihydroisoindolo[2,1-a]quinolin-11-ones, their in silico ADMET properties and in vitro antitumor activities.

Merchán-Arenas Diego R DR Sojo Felipe F Arvelo Francisco F Kouznetsov Vladimir V VV

RSC advances 20201119 69

We evaluated the antitumoral activity of diverse series of 5-aryl-dihydroisoindolo[2,1-a]quinolin-11-ones, AIIQ (Aryl IsoIndolo-Quinoline, 4a-m), and 5-vinyl dihydroisoindolo[2,1-a]quinolin-11-ones, VIIQ (Vinyl IsoIndolo-Quinoline, 6a-l), obtained using three component imino Diels-Alder (DA) reaction of anilines, o-phthalaldehyde and dienophiles. The first series was obtained in previous work employing isoeugenol and anethole as dienophiles, whereas the vinyl series was synt ...[more]

PMID: 35516784

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Project description:The in silico evaluation of 11H-pyrido[2,1-b]quinazolin-11-one derivatives against SARS-CoV-2 RdRp was undertaken based on the reports on antiviral activities of this class of compounds in addition to the promising interactions of the antiviral drug penciclovir as well as quinazoline derivatives with SARS-CoV-2 RdRp in silico. The target compounds were prepared via an Ullmann-Goldberg type coupling followed by the subsequent cyclization (involving amidation) in a single pot. The methodology involved a CuI-catalyzed reaction of 2-iodobenzoate ester with 2-aminopyridine or quinolin-2-amine or thiazol-2-amine under ultrasound to give the expected products in acceptable (51-93%) yields. The molecular interactions of the synthesized 11H-pyrido[2,1-b]quinazolin-11-one derivatives with the SARS-CoV-2 RdRp (PDB: 7AAP) were evaluated in silico. The study suggested that though none of these compounds showed interactions better than penciclovir but the compound 3a and 3n appeared to be comparable along with 3b seemed to be nearly comparable to favipiravir and remdesivir. The compound 3n with the best binding energy (-79.85 Kcal/mol) participated in the H-bond interactions through its OMe group with THR556 as well as ARG624 and via the N-5 atom with the residue SER682. The in silico studies further suggested that majority of the compounds interacted with the main cavity of active site pocket whereas 3h and 3o that showed relatively lower binding energies (-66.06 and -66.28 Kcal/mol) interacted with the shallow cavity underneath the active site of SARS CoV-2 RdRp. The study also revealed that a OMe group was favourable for interaction with respect to its position in the order C-8 > C-1 > C-2. Further, the presence of a fused quinoline ring was tolerated whereas a fused thiazole ring decreased the interaction significantly. The in silico predictions of pharmacokinetic properties of 3a, 3b and 3n indicated that besides the BBB (Blood Brain Barrier) penetration potential these molecules may show a good overall ADME. Overall, the regioisomers 3a, 3b and 3n have emerged as molecules of possible interest in the context of targeting COVID-19.

Dataset Information

Synthesis of dihydroisoindolo[2,1-a]quinolin-11-ones, their in silico ADMET properties and in vitro antitumor activities.

Publications

Synthesis of dihydroisoindolo[2,1-<i>a</i>]quinolin-11-ones, their <i>in silico</i> ADMET properties and <i>in vitro</i> antitumor activities.

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