In this work, some
new 2-[(5-((2-acetamidophenoxy)methyl)-1,3,4-oxadiazol-2-yl)thio]acetamide
derivatives (
4a-4l
) were synthesized and studied for
their anticancer activity. Twelve new compounds were tested on the
A549 human lung cancer cell line, C6 rat glioma cell line, and L929
murine fibroblast cell line. Compounds
4f, 4i, 4k
, and
4l
(IC
50
: 1.59–7.48 μM), and especially
4h
(IC
50
: <0.14 μM), exhibited excellent
cytotoxic profile on A549 with selectivity. Compounds
4g
and
4h
showed remarkable antiproliferative activity
on the C6 cell line with IC
50
values of 8.16 and 13.04
μM, respectively. The compounds with the lowest IC
50
value on the A549 cell line (
4f, 4h, 4i, 4k
, and
4l
) were further studied to determine the mechanism of action.
These compounds were found to induce apoptosis with a higher ratio
(16.10–21.54%) than that of the standard drug cisplatin (10.07%).
Compound
4f
displayed mitochondrial membrane depolarization
and caspase-3 activation at most, whereas compounds
4h
(89.66%) and
4i
(78.78%) had outstanding retention
rates in the G0/G1phase of the cell cycle (cisplatin 74.75%). Compounds
4f, 4g, 4h
, and
4l
exhibited matrix metalloproteinase-9
(MMP-9) inhibition higher than 75% at 100 μg/mL; even IC
50
values were found to be 1.65 and 2.55 μM for
4h
and
4l
. In addition,
in silico
physicochemical properties of the compounds and molecular docking
interaction of compound
4h
on the MMP-9 enzyme were evaluated;
the desired and expected results were obtained.