Pharmaceutical cocrystals: Unlocking the potential of challenging drug candidates
Journal of Drug Delivery Science and Technology,
Journal Year:
2024,
Volume and Issue:
unknown, P. 106572 - 106572
Published: Dec. 1, 2024
Language: Английский
Isostructural Levamisole Hydrochloride Ionic Cocrystal Solvates: High Z″ with a Low Melting Point
Crystal Growth & Design,
Journal Year:
2023,
Volume and Issue:
24(1), P. 554 - 566
Published: Dec. 6, 2023
Levamisole
hydrochloride
cocrystallizes
with
hydroquinone
in
different
solvates
(methanol,
ethanol,
water,
acetonitrile,
and
n-propanol),
forming
the
changing
Z″
cocrystal
from
23
to
3.33.
These
cocrystals
were
characterized
by
using
single-crystal
powder
X-ray
diffraction
thermal
analysis.
All
consist
of
2D
planar
sheets,
which
influence
value
melting
point.
The
findings
suggest
a
method
for
obtaining
high
Z
crystals
through
suitable
solvents.
Topology
analysis
Hirshfeld
surface
conducted
understand
transformation.
Further,
quantum
chemistry
was
demonstrated
as
significant
tool
explain
extremely
low
point
change
solid
forms.
Language: Английский
Optimization of Hot-Melt Extrusion Processing for the Synthesis of Ionic Cocrystals
Crystal Growth & Design,
Journal Year:
2023,
Volume and Issue:
23(10), P. 7355 - 7364
Published: Sept. 18, 2023
Cocrystals
are
multicomponent
crystalline
forms
that
an
appealing
alternative
to
modify
undesirable
properties
of
drug
substances,
such
as
poor
solubility
and
stability.
Hot-melt
extrusion
(HME),
a
solvent-free,
robust,
scalable
technology,
has
been
proven
be
suitable
approach
for
cocrystallization
several
drug-coformer
pairs.
However,
HME
mainly
implemented
the
synthesis
molecular
cocrystals
when
most
marketed
products
manufactured
in
form
ionic
cocrystals.
In
this
study,
extruded
fluoxetine
HCl-succinic
acid
was
investigated
using
different
screw
configurations.
Ionic
by
showed
complete
transformation
pair
with
high
purity,
improved
intrinsic
dissolution
rates,
long-term
storage
stability
compared
their
counterparts
produced
solvent
evaporation.
Language: Английский
Supramolecular architectures in multicomponent crystals of imidazole-based drugs and trithiocyanuric acid
Acta Crystallographica Section B Structural Science Crystal Engineering and Materials,
Journal Year:
2024,
Volume and Issue:
80(4), P. 294 - 304
Published: July 1, 2024
The
structures
of
three
multicomponent
crystals
formed
with
imidazole-based
drugs,
namely
metronidazole,
ketoconazole
and
miconazole,
in
conjunction
trithiocyanuric
acid
are
characterized.
Each
the
obtained
adducts
represents
a
different
category
crystalline
molecular
forms:
cocrystal,
salt
cocrystal
salt.
structural
analysis
revealed
that
all
cases,
N—H...N
hydrogen
bond
is
responsible
for
formation
acid–base
pairs,
regardless
whether
proton
transfer
occurs
or
not,
these
pairs
combined
to
form
unique
supramolecular
motifs
by
centrosymmetric
N—H...S
interactions
between
molecules.
complex
intermolecular
forces
acting
characteristic
patterns
discussed
from
geometric
energetic
perspectives,
involving
Hirshfeld
surface
analysis,
pairwise
energy
estimation,
natural
orbital
calculations.
Language: Английский
Novel lithium ionic cocrystals with benzoic acid derivatives and L-proline: Synthesis, X-ray structures, IR spectrums, DSC analysis, and water solubility
Yanping Li,
No information about this author
Hua Chen,
No information about this author
Jimin Lai
No information about this author
et al.
Journal of Molecular Structure,
Journal Year:
2024,
Volume and Issue:
1315, P. 138795 - 138795
Published: May 29, 2024
Language: Английский
Apremilast Cocrystals with Phenolic Coformers
Molecules,
Journal Year:
2024,
Volume and Issue:
29(24), P. 6060 - 6060
Published: Dec. 23, 2024
Apremilast
(APR)
is
an
anti-inflammatory
drug
commonly
used
in
the
treatment
of
psoriasis.
In
efforts
to
enhance
its
solubility,
several
cocrystals
with
similar
structural
features
have
been
developed.
This
study
investigates
cocrystallization
APR
four
phenolic-type
coformers:
phenol,
catechol,
pyrogallol,
and
hydroxyquinol.
These
coformers
differ
number
position
their
hydroxyl
groups,
melting
points
varying
by
as
much
100
°C.
Four
novel
cocrystal
forms
were
synthesized,
purified,
characterized
using
X-Ray
diffraction
thermal
analysis
techniques.
Surprisingly,
resulting
exhibited
minimal
differences
points.
The
molecular
packing
appears
limit
network-forming
potential
a
conclusion
supported
solved
crystal
structures,
Hirshfeld
surface
analysis,
differential
scanning
calorimetry
(DSC)
results.
Language: Английский