Research Square (Research Square),
Journal Year:
2023,
Volume and Issue:
unknown
Published: May 25, 2023
Abstract
Penicillin
resistance
is
a
commonly
present
and
controversial
matter
due
to
the
misuses
by
people
for
various
reasons.
However,
little
studies
have
been
examined
bioactivity
of
5
6
membered
rings.
In
this
study,
we
aimed
synthesize
new
compound
contain
5-
ring
following
short
low
cost
method
combined
it
with
oxazepine
via
Schiff
bases
produce
bicyclic
molecule
(Lactozepine).
vitro
examinations
were
implemented
assess
prepared
such
as
anti-bacterial,
anti-fungal
anti-oxidant
which
has
shown
wide
zone
inhibition
lactozepine
against
Streptococcus
pneumoniae
but
no
was
Kelbesilla
Staphylococcus
aureus
except
at
high
concentration
similar
result
assessment.
Furthermore,
showed
worthy
activity
free
radical
formation.
The
molecular
modelling
docking
assessment
availability
bind
bacterial
proteins
inhibit
their
growth
lowest
energy
greatest
strong
binding
affinity
PDB
crystal
structures
1VQQ,
2WAE,
1PYY
1IYS
between
−
6.5
7.9
kcal/mol.
Moreover,
MD
dynamic
simulation
that
RMSF
(root
mean
square
fluctuation)
assessed
protein's
amino
acids
remained
consistent
tightly
bound
in
state.
novel
having
δ-lactam
rings
attached
are
hopeful
vivo
future.
Polycyclic aromatic compounds,
Journal Year:
2023,
Volume and Issue:
unknown, P. 1 - 24
Published: May 22, 2023
In
this
study,
(z)-5-((3-(2,3-dihydroxyphenyl)
acryloyl)
oxy)-
1,3,4-trihydroxycyclohexa-2,4-diene-1-carboxylic
acid
(chlorogenic
acid)
was
isolated
and
characterized
using
UV-Visible,
1H
NMR
13C
NMR,
FT-IR,
along
with
detailed
investigation
density
functional
theory
(DFT),
in-silico
molecular
docking,
dynamics
(MD)
simulation.
Results
from
DFT
calculation
indicates
that
the
titled
compound
is
very
stable
energy
gap
of
3.7–7.8
for
variable
functionals,
similarly,
structural
parameters
show
close
agreement
X-ray
data
bond
lengths
angles.
The
FT-IR
spectrum
results
revealed
stretching
vibration
O–H
(3366
cm−1),
C=O
(1689
C–H
(1636,
1606,
1522,
1442
C–O
(1192
1122
cm−1).
drug-likeness
analyses
ADME
studies
showed
ability
good
oral
behavior
investigated
as
it
obeys
Lipinski,
Ghose,
Veber
Egan
rules.
Hepatotoxic
immunotoxic
activities
were
indicated
toxicity/toxicological
endpoints
studied
compound.
docking
a
binding
affinity
−8.30
9.5
kcal/mol
compound,
which
higher
than
standard
drug.
From
dynamic
simulation
results,
chlorogenic-2H14
(complex
B)
variations
in
RMSD
values
less
3Å,
indicating
protein
structure
underwent
minor
conformational
changes
throughout
Chlorogenic-protein
complexes
had
average
RGyr
3.704
−
4.907Å,
compaction
during
Therefore,
can
be
said
has
potential
to
effective
an
agent
cholera
management,
obtained
platform
further
in-vitro,
vivo
clinical
trials.
Chemical Physics Impact,
Journal Year:
2024,
Volume and Issue:
8, P. 100495 - 100495
Published: Jan. 26, 2024
The
current
study
focuses
on
the
combined
experimental
and
theoretical
FT-IR
FT-Raman
spectra
of
1-carboxy-4-ethoxybenzene
(1C4EB),
to
obtain
vibrational
frequencies
optimal
geometrical
parameters
by
HF
DFT.
For
1C4EB,
kind
intramolecular
interactions
their
stabilization
were
performed
Natural
Bond
Orbital
analysis.
Nonlinear
optical
p
properties
conclusive
evidence
for
ICT
also
analyzed.
electronic
energies
absorption
in
different
mediums
determined.
Furthermore,
Mulliken
charges
distribution,
molecular
electrostatic
potential
maps,
condensed
Fukui
function
thermodynamic
calculated.
topological
IRI
analyzed
with
Multiwfn
program.
In
docking,
target
proteins
4ULE
2EEP
used
investigate
sugar
phosphatase
Prolyl
aminopeptidase
inhibitor
properties.
least
binding
energy
-6.7
kcal/mol
is
observed
selected
protein
4ULE.
dynamics
complex
between
–
ligand,
free
calculated
Poisson-Boltzmann
surface
area
method.
Polycyclic aromatic compounds,
Journal Year:
2023,
Volume and Issue:
44(2), P. 1221 - 1237
Published: March 20, 2023
Breast
cancer
continues
to
be
the
biggest
cause
of
mortality
for
women
worldwide,
taking
lives
millions
each
year.
As
a
result,
scientists
are
now
exploring
possibility
metal-based
complexes
as
anticancer
therapies.
Notwithstanding,
polypyridyl
coordinated
Re(I)
have
demonstrated
tremendous
promise
cancer-fighting
medications.
Therefore,
intent
this
research
is
investigate
theoretically
spectral
properties,
compute
density
functional
theory
(DFT),
and
simulate
molecular
docking
containing
functionalized
2,2′-bipyridine
N,N′-donor
bidentate
ligands:
5,5′-DiMBpy
in
(1a),
4,4′-DiMBpy
(2a),
4,4′-DiMoxBp
(3a)
therapy
application.
Intriguingly,
complex
Re(2a)
achieved
greatest
MolDock
score
H-bond
energy
following
interactions
with
target
receptors
utilized,
followed
by
Re(1a)
Re(3),
respectively.
Thus
elucidating
studied
compounds
efficient
mitigation
breast
cancer.
Journal of Biomolecular Structure and Dynamics,
Journal Year:
2023,
Volume and Issue:
42(12), P. 6042 - 6064
Published: July 28, 2023
Owing
to
the
significant
gap
in
knowledge
and
understanding
of
mechanisms
antimicrobial
action
development
resistance,
optimization
therapies
therefore
becomes
a
necessity.
It
is
on
this
note,
that
study
seeks
both
experimentally
theoretically
investigate
efficiency
two
synthesized
compounds
namely;
1-((4-methoxyphenyl)
(morpholino)methyl)thiourea
(MR1)
diethyl
4-(4-chlorophenyl)-2,6-diphenyl-1,4-dihydropyridine-3,5-dicarboxylate
(HRC).
Utilizing
density
functional
theory
(DFT),
were
optimized
at
ωB97XD/6-31++G(2d,
2p)
level
theory.
This
provided
clear
explanation
for
their
distinct
reactivity
stability
potentials.
More
so,
natural
bond
orbital
(NBO)
analysis
confirmed
strong
intra
intermolecular
interactions,
which
agreed
with
calculated
parameters
states
(DOS).
Upon
assessing
efficacy
compounds,
it
was
found
they
exhibited
lower
activity
against
Enterobacter
A.
niger,
but
considerable
Moraxella.
In
contrast,
showed
higher
B.
subtilis
Trichophyton,
indicating
are
more
effective
gram-positive
bacteria
than
gram-negative
ones.
Hence,
can
be
asserted
have
superior
antifungal
antibacterial
activity.
A
fascinating
aspect
data
show
interactions
incredibly
insightful,
totally
correlating
simulations
molecular
docking
dynamics.
Therefore,
alignment
between
experimental
findings
computational
strengthens
validity
study's
conclusions,
emphasizing
significance
context
optimizing
therapies.Communicated
by
Ramaswamy
H.
Sarma
Journal of Biomolecular Structure and Dynamics,
Journal Year:
2023,
Volume and Issue:
42(5), P. 2464 - 2481
Published: June 22, 2023
Epidermal
growth
factor
receptor
(EGFR)
tyrosine
kinases
are
overexpressed
in
several
human
cancers
and
could
serve
as
a
promising
anti-cancer
drug
target.
With
this
view,
the
main
aim
of
present
study
was
to
identify
spices
having
potential
inhibit
EGFR
kinase.
The
structure-based
virtual
screening
spice
database
consisting
1439
compounds
with
kinase
(PDB
ID:
3W32)
carried
out
using
Glide.
Top
scored
18
hits
(XP
Glide
Score
≥
−10.0
kcal/mol)
further
docked
three
T790M/L858R
mutants
AutodockVina,
followed
by
ADME
filtration.
best
were
refined
Molecular
Dynamics
(MD)
simulation
MM-GBSA-based
binding
energy
calculation.
overall
docking
results
selected
both
quite
satisfactory
showed
strong
compared
coligands.
Detailed
MD
analysis
CL_07,
AC_11
AS_49
also
stability
protein-ligand
complexes.
Moreover,
drug-like,
MM-GBSA
free
CL_07
established
be
far
better.
found
similar
known
inhibitor
Gefitinib.
Most
available
Allium
cepa,
Curcuma
longa
sativum,
respectively.
Therefore,
these
used
therapeutic
candidate
against
cancer
caused
overexpression
after
validation
observations
in-vitro
experiments.
Further
extensive
work
is
needed
improve
scaffolds
AC_11,
AC_17,
drugs.Communicated
Ramaswamy
H.
Sarma