Chemistry & Biodiversity,
Journal Year:
2023,
Volume and Issue:
20(8)
Published: July 11, 2023
In
addition
to
the
first
synthesis
of
natural
bromophenol
butyl
2-(3,5-dibromo-4-hydroxyphenyl)acetate
(1),
indene
derivatives
34
and
35
were
synthesized
from
3-phenylpropenal
in
BBr3
medium.
Five
known
bromophenols
some
by
methods.
Cholinesterase
(ChEs)
inhibitors
reduce
breakdown
acetylcholine
are
used
treatment
Alzheimer's
disease
(AD)
dementia
symptoms.
The
inhibition
effects
all
obtained
compounds
examined
towards
acetylcholinesterase
(AChE),
butyrylcholinesterase
(BChE)
α-glycosidase
enzymes.
All
demonstrated
strong
against
both
cholinergic
For
determination
Ki
values
novel
Lineweaver-Burk
graphs
obtained.
found
ranging
0.13-14.74
nM
for
AChE,
5.11-23.95
BChE,
63.96-206.78
α-glycosidase,
respectively.
their
exhibit
effective
profile
when
compared
positive
controls.
Records of Natural Products,
Journal Year:
2024,
Volume and Issue:
2, P. 251 - 272
Published: March 9, 2024
Alchemilla
species
(Rosaceae)
are
popularly
known
as
'Lady's
Mantle,
Lion's
claw'
and
used
for
medicinal
purposes
diuretic,
laxative,
tonic,
wound
healing
agents.Bioactivities
phenolic
content
of
pseudocartalinica
Juz.species
have
yet
to
be
investigated.Our
research
focused
on
assessing
the
antioxidant
characteristics
A.
methanol
(MEAP)
water
extracts
(WEAP),
well
their
inhibitory
effects
acetylcholinesterase
(AChE),
α-glycosidase
(α-gly),
human
carbonic
anhydrase
II
(hCA
II)
enzymes.Additionally,
we
conducted
chemical
characterization
using
UPLC-MS/MS
investigated
correlation
between
major
compounds
enzymes
through
molecular
docking
analysis.To
assess
activities
MEAP
WEAP,
six
test
systems
were
employed,
including
DPPH,
ABTS,
DMPD,
FRAP,
CUPRAC,
Fe
3+
reducing
assays.The
outcome
showed
that
extract
plant
generally
has
stronger
activity.In
addition,
analysis
indicated,
miquelianin
(44.095
mg/g),
quinic
acid
(17.054
ellagic
(6.492
mg/g)
significant
in
extract.A
study
revealed
a
affinity
binding
hCAII
enzyme
acid,
miquelianin,
AChE/α-gly
enzymes.
pseudocatalinica
high
activity
good
inhibition
effect
against
AChE,
α-glycosidase,
hCA
Applied Biochemistry and Biotechnology,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 10, 2025
Antarctic
organisms
are
known
for
producing
unique
secondary
metabolites,
and
this
study
specifically
focuses
on
the
less-explored
metabolites
of
moss
Warnstorfia
fontinaliopsis.
To
evaluate
their
potential
bioactivity,
we
extracted
using
four
different
solvents
identified
significant
lipase
inhibitory
activity
in
methanol
extract.
Non-targeted
metabolomic
analysis
liquid
chromatography-tandem
mass
spectrometry
(LC–MS/MS)
extract
predicted
presence
12
compounds,
including
several
not
previously
reported
mosses.
gain
insights
into
enzyme
activity,
binding
affinities
these
candidate
compounds
to
were
evaluated
through
silico
molecular
docking.
Further
validation
by
dynamics
(MD)
simulations
revealed
that
hyocholic
acid
pheophorbide
A
form
stable
complexes
with
human
pancreatic
(HPL).
Based
results,
targeted
fractionation
experiments
performed,
yielding
eight
fractions.
Among
these,
Fractions
4
6,
which
assumed
contain
those
exhibited
higher
compared
crude
Additionally,
pharmacokinetic
properties
analyzed
SwissADME
Molinspiration
calculations,
suggesting
as
drug
candidates.
This
establishes
a
promising
methodology
identifying
rare
bioactive
low
abundance
underexplored
natural
resources
combining
LC–MS/MS
These
findings
also
provide
new
chemical
ecology
mosses
applications
pharmaceutical
development.
Frontiers in Chemistry,
Journal Year:
2025,
Volume and Issue:
13
Published: Feb. 19, 2025
Laurus
nobilis
(LN),
has
traditional
medicinal
uses,
and
this
study
investigates
its
therapeutic
potential
by
focusing
on
phenolic
content
bioactivities
such
as
antioxidant,
antidiabetic,
anticholinergic
properties.
Phenolic
compounds
play
key
roles
in
reducing
oxidative
stress
modulating
enzymatic
activities,
relevant
to
metabolic
neurodegenerative
disorders.
LN
leaf
extracts
were
prepared
via
ethanol
maceration,
followed
filtration
concentration.
was
analyzed
using
LC-MS/MS.
Antioxidant
activity
assessed
through
ferric
thiocyanate,
DPPH,
ABTS,
FRAP
assays.
Enzyme
inhibition
assays
targeted
AChE,
BChE,
α-GLY,
with
IC50
values
from
dose-response
curves.
In
silico
analyses
conducted
molecular
docking
techniques
predict
the
binding
mechanisms
of
identified
active
sites
target
enzymes,
evaluating
affinities
interaction
profiles.
Vanillic
acid
catechin
hydrate
most
abundant
phenolics.
extract
showed
strong
lipid
peroxidation
(50.53%)
compared
Trolox
(28.33%)
α-tocopherol
(37.79%).
Moderate
radical
scavenging
metal
reduction
potentials
observed.
2.57
µg/L
for
3.78
4.65
indicating
notable
bioactivity.
studies
confirmed
phenolics
enzymes.
demonstrated
promising
attributed
high
content.
results
suggest
managing
findings
support
these
bioactivities,
highlighting
LN's
potential.
ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(10), P. 10653 - 10661
Published: March 8, 2025
Quality
parameters,
physical–chemical
characteristics,
and
antioxidant
capacity
are
important
to
ensure
the
successful
commercialization
of
honey.
On
other
hand,
presence
antioxidants
in
foods
gives
them
greater
added
value.
Thus,
based
on
study
total
(TAC),
along
with
analysis
phenolic
compounds
(TPC)
flavonoid
(TFC),
it
is
possible
classify
honey
according
its
composition.
First,
all
samples
were
evaluated
their
polinic
origin
(melissopalynological
analysis).
The
TAC
was
determined
using
both
spectrophotometric
methods
(ferric
reducing
power,
FRAP)
electrochemical
(ceric
capacity,
CRAC).
All
types
exhibited
significant
values
for
TAC,
TPC,
TFC.
To
assess
quality,
methodologies
such
as
moisture
content,
diastase
activity,
hydroxymethylfurfural
(HMF),
acidity
(TA),
water
activity
(Aw)
employed.
Among
analyzed
samples,
5
2
showed
high
levels
(20.10–20.87%),
TA
(65.12–65.49
mequiv
kg–1),
HMF
(>60
mg
surpassing
limits
set
by
Brazilian
legislation.
This
indicates
a
potentially
longer
shelf
life
or
possibility
adulteration.
Furthermore,
concluded
that
color
may
interfere
FRAP
(r
=
0.837).
In
this
regard,
CRAC
assay
presents
new
alternative
evaluating
bee
products.
International Journal of Food Properties,
Journal Year:
2025,
Volume and Issue:
28(1)
Published: March 19, 2025
We
examined
the
phytochemical
content,
antioxidant,
antimicrobial,
anticholinergic,
antidiabetic,
and
antiglaucoma
properties
of
ethanol
water
extracts
from
Salvia
fruticosa
(SF)
Thymus
vulgaris
(TV).
Extracts
were
analyzed
using
four
antioxidant
assays,
while
enzyme
inhibition
was
tested
against
α-amylase,
acetylcholinesterase
(AChE),
butyrylcholinesterase
(BChE),
human
carbonic
anhydrase
II
(hCA
II).
Antimicrobial
activity
evaluated
pan-resistant
bacterial
strains.
LC-MS/MS
identified
rosmarinic
acid
as
major
compound
(27.61
34.35
mg/L
in
TV
SF,
respectively).
Ethanolic
had
higher
phenolic
content
(181.0
±
7.86
107.0
5.78
µg
GAE/mg
for
SF
TV,
showed
stronger
metal-reducing
capacity,
superior
radical
scavenging
ability,
judging
by
IC50
values
(13.68
1.18
μg/mL),
defined
concentration
that
reduces
50%
activity.
The
highest
observed
hCA
(SF
ethanolic
extract,
14.51
4.07
AChE
aqueous
16.51
3.77
BChE
(TV
10.60
4.93
μg/mL).
extract
inhibited
growth
Staphylococcus
aureus
Enterococcus
faecalis
(11
mm
at
60
These
findings
highlight
potential
sources
natural
antioxidants,
inhibitors,
antimicrobials
pharmaceutical
food
formulations.
Pharmaceuticals,
Journal Year:
2023,
Volume and Issue:
16(9), P. 1222 - 1222
Published: Aug. 30, 2023
Novel
analogs
of
quinoline
and
isoindoline
containing
various
heterocycles,
such
as
tetrazole,
triazole,
pyrazole,
pyridine,
were
synthesized
characterized
using
FT-IR,
NMR,
mass
spectroscopy,
their
antioxidant
antidiabetic
activities
investigated.
The
previously
compound
1
was
utilized
in
conjugation
with
ketone-bearing
tetrazole
isoindoline-1,3-dione
to
synthesize
Schiff’s
bases
2
3.
Furthermore,
hydrazide
treated
aryledines
provide
pyrazoles
4a–c.
Compound
5
obtained
by
treating
potassium
thiocyanate,
which
then
cyclized
a
basic
solution
afford
triazole
6.
On
the
other
hand,
pyridine
derivatives
7a–d
8a–d
2-(4-acetylphenyl)isoindoline-1,3-dione
via
one-pot
condensation
reaction
aryl
aldehydes
active
methylene
compounds.
From
studies,
7d
showed
significant
activity
an
EC50
=
0.65,
0.52,
0.93
mM
free
radical
scavenging
assays
(DPPH,
ABTS,
superoxide
anion
radicals).
It
also
displayed
noteworthy
inhibitory
against
both
enzymes
α-glycosidase
(IC50:
0.07
mM)
α-amylase
(0.21
compared
acarbose
(0.09
0.25
for
α-amylase),
higher
than
During
silico
assays,
exhibited
favorable
binding
affinities
towards
(−10.9
kcal/mol)
(−9.0
(−8.6
kcal/mol
−6.0
α-amylase).
stability
demonstrated
molecular
dynamics
simulations
estimations
energy
throughout
simulation
session
(100
ns).
Journal of Biomolecular Structure and Dynamics,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 15
Published: Feb. 8, 2024
Alzheimer's
disease
(AD)
is
a
progressive
neurological
disorder
responsible
for
the
cognitive
dysfunction
and
impairment
in
patients.
Acetylcholinesterase
inhibitors
(AChEIs)
are
used
to
treat
AD
however,
these
only
provided
symptomatic
relief
more
efficient
drug
molecules
desired
effective
treatment
of
disease.
In
this
article,
ligand-based
drug-designing
strategy
was
develop
validate
field-based
3D-QSAR
pharmacophore
model
on
quinazoline-based
AChEIs
reported
literature.
The
validated
(AAAHR_1)
as
prefilter
screen
an
ASINEX
database
via
virtual
screening
workflow
(VSW).
hits
generated
were
subjected
MM-GBSA
identify
potential
top
three
scoring
(BAS
05264565,
LEG
12727144
SYN
22339886)
evaluated
thermodynamic
stability
at
target
site
using
molecular
dynamic
simulations.
Additionally,
DFT
study
performed
predict
reactivity
lead
towards
acetylcholinesterase
(AChE).
Thus,
by
utilising
various
computational
tools,
identified
potent
that
can
be
developed
candidates
AD.