European Journal of Medicinal Chemistry Reports,
Journal Year:
2022,
Volume and Issue:
5, P. 100058 - 100058
Published: May 23, 2022
Heterocycles
are
being
playing
an
important
role
in
cancer
treatment
for
years.
Currently,
a
number
of
anticancer
agents
available
on
market,
but
concerns
such
as
less
effectiveness,
drug
resistance,
adverse
effects,
and
non-selectivity
create
urgent
need
the
development
newer
highly
potent
with
fewer
side
effects.
Among
heterocycles,
oxadiazole
is
great
interest
recent
era
due
to
their
potential
activity.
Structurally,
five-member
heterocyclic
ring
that
contains
one
oxygen
two
nitrogen
heteroatom.
The
mechanism
cell
suppression
involve
inhibition
different
growth
factors
enzymes
including
histone
deacetylase
(HDAC),
thymidylate
synthase
(TS),
vascular
endothelial
factor
(VEGF),
glycogen
kinase-3
(GSK),
epidermal
(EGF),
etc.
HDAC
considered
target
therapy
discovery.
inhibitors
act
by
promoting
acetylation
histones,
regulate
cause
death
pathways,
like
apoptosis,
differentiation,
cycle
arrest
DNA
repair,
up-regulation
or
reactivation
silenced
tumor
suppressors,
down
regulation
factors.
Recently,
five
drugs
namely
Vorinostat
(SAHA),
Romidepsin
(FK-228),
Belinostat
(PXD-101),
Panobinostat
(LBH-589),
Chidamide
have
been
granted
US/Chinese
FDA
several
queue
clinical
trials.
focused
area
this
review
summarize
current
status,
chemistry,
structure
activity
relationship,
action,
therapeutic
various
derivatives
novel
inhibiting
enzymes.
Finally,
we
highlighted
future
prospects
agents.
Results in Chemistry,
Journal Year:
2022,
Volume and Issue:
4, P. 100605 - 100605
Published: Jan. 1, 2022
A
novel
series
of
dual
1,2,3–triazole
and
1,3,4–oxadiazole
heterocyclic
compounds
linked
to
indazole
were
designed
efficiently
synthesized
using
3-bromo-1H-indazole
as
potential
antimicrobial
agents.
All
the
characterized
by
their
proton,
carbon
nuclear
magnetic
resonance,
infrared,
mass
spectral
data,
elemental
analysis.
The
final
9a–m
evaluated
in
vitro
activity
against
Gram–negative
microorganism
E.
coli,
Gram–positive
microorganisms
B.
subtilis,
S.
pneumoniae,
aureus
antifungal
strains
A.
fumigates,
C.
albicans.
From
biological
screening,
we
surprised
find
that
most
have
significant
inhibitory
particular
heterocycles
9b,
9c,
9h,
9i,
9j
showed
outstanding
antibacterial
bacteria
pneumoniae
with
MICs
5.4
±
0.02,
5.8
0.03,
8.0
0.04,
4.0
7.8
0.01
µg/mL
respectively,
when
compared
ampicillin
[MIC
=
9.1
µg/mL].
Final
prepared
scaffolds
9h
acquiring
highest
drug
scores
ΔG
–7.78,
–8.34
Kcal/mol
amino
acids
residues
Arg171
(O…H:
1.934),
Lys20
(N…H:
1.951),
Arg265
2.080),
ArgA:171
(2.740),
ArgA:265
(1.874),
TyrA:248
(1.973),
Ser19
(H…O:
2.048),
Tyr248
1.570),
1.976),
Arg46
1.059)
ArgA:45
(O…H,
2.94
Å)
respectively.
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(19), P. 11173 - 11173
Published: Sept. 22, 2022
Cancer
is
one
of
the
greatest
challenges
in
modern
medicine
today.
Difficult
and
long-term
treatment,
many
side
effects
drugs
used
growing
resistance
to
treatment
neoplastic
cells
necessitate
new
approaches
therapy.
A
very
promising
targeted
therapy
based
on
direct
impact
only
cancer
cells.
As
a
continuation
our
research
biologically
active
molecules,
we
report
herein
design,
synthesis
anticancer
evaluation
series
N-Mannich-base-type
hybrid
compounds
containing
morfoline
or
different
substituted
piperazines
moieties,
1,3,4-oxadiazole
ring
4,6-dimethylpyridine
core.
All
were
tested
for
their
potential
cytotoxicity
against
five
human
cell
lines,
A375,
C32,
SNB-19,
MCF-7/WT
MCF-7/DX.
Two
N-Mannich
bases
(compounds
5
6)
further
evaluated
growth
inhibition
melanoma
(A375
C32),
normal
(HaCaT)
lines
using
clonogenic
assay
population
doubling
time
test.
The
apoptosis
was
determined
with
neutral
version
comet
assay.
confocal
microscopy
method
enabled
visualization
F-actin
reorganization.
obtained
results
demonstrated
that
6
have
cytotoxic
proapoptotic
are
capable
inducing
depolarization
dose-dependent
manner.
Moreover,
computational
chemistry
approaches,
molecular
docking
electrostatic
employed
study
non-covalent
interactions
investigated
four
receptors.
It
found
all
examined
molecules
exhibit
similar
binding
affinity
respect
chosen
reference
drugs.