European Journal of Life Sciences,
Journal Year:
2023,
Volume and Issue:
2(3), P. 118 - 124
Published: Dec. 29, 2023
In
the
present
research,
we
synthesized
two
unique
series
of
thiazole
compounds
having
5-bromothiophene
and
3-methylthiophene
(2a-2f)
in
their
structure.
After
that,
spectroscopic
methods
were
used
to
analyze
chemical
compositions
newly
molecules.
Then
vitro
evaluation
was
done
determine
acetylcholinesterase
(AChE)
butyrylcholinesterase
(BuChE)
activity
using
galantamine
as
reference
standard.
The
compounds’
antioxidant
properties
assessed
DPPH
radical
scavenging
ferrous
ion-chelating
techniques.
results
study
showed
weak
anticholinesterase
against
AChE
BuChE
enzymes
for
all
final
compounds.
analogs
also
significant
activities
with
IC50
values
range
29.16
±
0.009
33.09
0.004
µM
(for
DDPH)
incomparison
standard
gallic
acid
=
31.13
0.008
DDPH).
Especially,
compound
2c
best
value
µM.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Feb. 12, 2024
A
series
of
novel
azepine
derivatives
based
on
quinazolinone
moiety
was
synthesized
through
the
reaction
chalcones
(2a-d)
either
with
2-amino
aniline
in
acidic
medium
to
give
diazepines
(3a-d)
or
2-aminophenol
offer
oxazepine
(4a-d).
The
structure
compounds
confirmed
via
melting
points,
elemental
analyses,
and
different
spectroscopic
techniques.
Moreover,
these
newly
mode
action
investigated
in-silico
using
molecular
docking
against
outer
membrane
protein
(OMPA),
exo-1,3-beta-glucanase
for
their
antimicrobial
activity,
Smoothened
(SMO),
transcription
factor
glioma-associated
homology
(SUFU/GLI-1),
main
proteins
Hedgehog
signaling
pathway
inspect
anticancer
potential.
Our
results
showed
that,
diazepine
(3a)
(4a)
offered
highest
binding
energy
target
OMPA/
exhibited
potent
activities
E.
coli,
P.
aeruginosa,
S.
aureus,
B.
subtilis,
C.
Albicans
A.
flavus.
As
well,
achieved
best
among
other
compounds,
SMO,
SUFU/GLI-1
proteins.
in-vitro
cytotoxic
study
done
them
panel
cancer
cell
lines
HCT-116,
HepG2,
MCF-7
normal
line
WI-38.
Conclusively,
it
revealed
that
simulations
experiments
were
agreed.
a
result,
our
findings
elucidated
(4a),
have
potential
be
used
as
agents
possible
treatment
medications.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 3, 2025
In
this
study,
new
cinnamic
acid
linked
to
triazole
acetamide
derivatives
was
synthesized
and
evaluated
for
anti-Alzheimer
anti-melanogenesis
activities.
The
structural
elucidation
of
all
analogs
performed
using
different
analytical
techniques,
including
1H-NMR,
13C-NMR,
mass
spectrometry,
IR
spectroscopy.
compounds
were
assessed
in
vitro
their
inhibitory
activities
against
acetylcholinesterase
(AChE),
butyrylcholinesterase
(BChE),
tyrosinase
enzymes.
Among
synthesize
derivative
compound
3-(4-((1-(2-((2,4-dichlorophenyl)amino)-2-oxoethyl)-1H-1,2,3-triazol-4-yl)methoxy)-3-methoxyphenyl)acrylic
(10j)
exhibited
the
highest
activity
BChE
with
an
IC50
value
11.99
±
0.53
µM.
Derivative
3-(3-methoxy-4-((1-(2-oxo-2-(p-tolylamino)ethyl)-1H-1,2,3-triazol-4-yl)methoxy)phenyl)acrylic
(10d),
bearing
a
4-CH3
group,
identified
as
most
potent
AChE
inhibitor.
terms
inhibition,
3-(3-methoxy-4-((1-(2-((2-methyl-4-nitrophenyl)amino)-2-oxoethyl)-1H-1,2,3-triazol-4-yl)methoxy)phenyl)acrylic
(compound
10n),
demonstrated
44.87%
inhibition
at
concentration
40
Additionally,
kinetic
study
10j
which
2,4-dichlorophenyl
substituents
revealed
mixed-type
pattern.
Furthermore,
molecular
docking
dynamic
studies
conducted
thoroughly
evaluate
its
mode
action
within
active
site.
BMC Chemistry,
Journal Year:
2024,
Volume and Issue:
18(1)
Published: April 1, 2024
Abstract
In
pursuit
of
developing
novel
cholinesterase
(ChE)
inhibitors
through
molecular
hybridization
theory,
a
series
isoindolin-1,3-dione-based
acetohydrazides
(compounds
8a
–
h
)
was
designed,
synthesized,
and
evaluated
as
possible
acetylcholinesterase
(AChE)
butyrylcholinesterase
(BChE)
inhibitors.
vitro
results
revealed
IC
50
values
ranging
from
0.11
±
0.05
to
0.86
0.02
µM
against
AChE
5.7
0.2
30.2
2.8
BChE.
A
kinetic
study
conducted
on
the
most
potent
compound,
,
ascertain
its
mode
inhibition,
revealing
competitive
AChE.
Furthermore,
binding
interaction
modes
active
compound
within
site
elucidated.
Molecular
dynamics
simulations
were
performed
assess
stability
-AChE
complex.
silico
pharmacokinetic
predictions
for
compounds
indicated
their
potential
promising
lead
structure
development
new
anti-Alzheimer’s
disease
(anti-AD)
agents.
RSC Medicinal Chemistry,
Journal Year:
2023,
Volume and Issue:
15(1), P. 207 - 222
Published: Dec. 4, 2023
Alzheimer's
disease
is
a
neurodegenerative
disorder
that
impacts
memory,
thinking,
and
behavior,
currently,
there
no
effective
cure
available
for
its
treatment.
This
study
explored
one-pot
strategy
synthesizing
spiroindolinone-pyrazole
derivatives
through
sequential
four-component
condensation
reaction.
These
were
further
investigated
their
potential
as
anti-Alzheimer's
agents.
The
developed
synthetic
procedure
provides
remarkable
advantages,
including
clean
reaction
profile,
abundant
starting
materials,
operational
simplicity,
easy
purification
without
traditional
methods
with
good
to
excellent
yields
(84-96%).
Next,
the
biological
potencies
of
newly
synthesized
against
AChE
BChE
disease-related
targets
determined.
Also,
kinetic
cytotoxicity
most
potent
derivative
investigated.
Furthermore,
molecular
docking
dynamics
evaluations
performed
employing
BMC Chemistry,
Journal Year:
2024,
Volume and Issue:
18(1)
Published: April 10, 2024
In
this
article,
we
present
the
design
and
synthesis
of
amino-7,8-dihydro-4H-chromenone
derivatives
as
possible
inhibitors
acetylcholinesterase
(AChE)
butyrylcholinesterase
(BChE)
for
management
Alzheimer's
disease
(AD).
The
target
compounds
were
evaluated
against
AChE
BChE
in
vitro,
4k
exhibited
good
potency
(IC
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: June 14, 2024
Abstract
Alzheimer’s
disease
(AD),
a
severe
neurodegenerative
disorder,
imposes
socioeconomic
burdens
and
necessitates
innovative
therapeutic
strategies.
Current
interventions
are
limited
underscore
the
need
for
novel
inhibitors
of
acetylcholinesterase
(AChE)
butyrylcholinesterase
(BChE),
enzymes
implicated
in
pathogenesis
AD.
In
this
study,
we
report
synthetic
strategy
generation
2-aminopyridine
derivatives
via
two-component
reaction
converging
aryl
vinamidinium
salts
with
1,1-enediamines
(EDAMs)
dimethyl
sulfoxide
(DMSO)
solvent
system,
catalyzed
by
triethylamine
(Et
3
N).
The
protocol
introduces
rapid,
efficient,
scalable
pathway,
achieving
good
to
excellent
yields
while
maintaining
simplistic
workup
procedures.
Seventeen
were
synthesized
subsequently
screened
their
inhibitory
activity
against
AChE
BChE.
most
potent
derivative,
3m
,
exhibited
an
IC
50
value
34.81
±
3.71
µM
20.66
1.01
BChE
compared
positive
control
donepezil
0.079
0.05
10.6
2.1
Also,
detailed
kinetic
studies
undertaken
elucidate
modes
enzymatic
inhibition
compounds
both
promising
compound
was
then
subjected
molecular
docking
dynamics
simulations,
revealing
significant
binding
affinities
favorable
interaction
profiles
silico
ADMET
assessments
further
determined
drug-like
properties
suggesting
it
as
candidate
pre-clinical
development.
Future Medicinal Chemistry,
Journal Year:
2024,
Volume and Issue:
16(15), P. 1519 - 1535
Published: June 12, 2024
Aim:
A
new
series
of
1,2,3-triazole-hydrazone
derivatives
were
developed
to
evaluate
their
anti-Alzheimer's
activity.
Materials
&
methods:
All
compounds
screened
toward
cholinesterases
via
the
modified
Ellman's
method.
The
toxicity
assay
on
SH-SY5Y
cells
was
performed
using
MTT
assay,
and
expression
levels
GSK-3α,
GSK-3β,
DYRK1
CDK5
assessed
in
presence
6m
6p.
Results:
6p;
acting
as
mixed-type
inhibitors,
exhibited
promising
acetylcholinesterase
butyrylcholinesterase
inhibitory
activity,
respectively.
demonstrated
no
under
tested
concentrations
positively
impacted
neurodegenerative
pathways.
Notably,
displayed
a
significant
downregulation
mRNA
GSK-3β
CDK5.
Conclusion:
target
could
be
considered
developing
disease
agents.
Advanced Synthesis & Catalysis,
Journal Year:
2024,
Volume and Issue:
366(21), P. 4441 - 4451
Published: Aug. 27, 2024
Abstract
We
report
sequential
wavelength‐selective
photochemical
transformations
of
1‐alkenylpyrazolo[1,2‐
a
]pyrazolones
to
pyrazolo[1,2‐
][1,2]diazepines
or
cyclobuta[
c
]pyrazolo[1,2‐
]pyrazolones.
Irradiation
with
visible‐light
(blue
LED,
457
nm)
induced
selective
‘ring
switching’
transformation
into
][1,2]diazepines,
which
underwent
electrocyclisation
yielding
upon
irradiation
UV−A
light
(black
365
nm).
Due
the
very
narrow
wavelength
now
available
from
OLED
sources,
formation
either
5,7‐bicyclic
5,5,4‐tricyclic
ring
systems
5,5‐bicyclic
starting
material
is
possible
by
changing
source.
The
took
place
under
mild
conditions
in
absence
additives
photocatalysts.
Mechanistic
studies
indicate
that
these
proceed
through
an
excited
triplet
state
substrate,
followed
homolytic
C(1)−N(8)
bond
cleavage,
intersystem
crossing,
and
cyclization
zwitterionic
intermediate
on
ground
potential
energy
surface.
subsequent
photoinduced
disrotatory
stereospecific
4π‐electrocyclization
leads
3D‐rich
products.