Availability of π–Cation Radical in the Oxidative Products of Oxidovanadium Porphyrin: Significance for DNA Binding and Antibacterial Activity
Applied Organometallic Chemistry,
Год журнала:
2024,
Номер
38(12)
Опубликована: Авг. 29, 2024
ABSTRACT
Oxidovanadium
meso
‐tetrakis(3,4,5‐trimethoxyphenyl)
porphyrin
[VO(T(OMe)3PP)]
(Complex
1
)
was
prepared.
The
oxidation
product
of
Complex
has
been
characterized
by
cyclic
voltammetry
(CV),
UV–visible
spectrophotometer,
electron
paramagnetic
resonance
(EPR)
and
nuclear
magnetic
(NMR)
the
addition
SbCl
5
to
.
There
is
a
one‐electron
in
that
creates
π–cation
radicals
CV
data.
This
supported
an
IR
spectrophotometer.
Subsequent
EPR
spectra
verified
initiation
monoradical,
which
subsequently
transforms
into
triplet
state
where
S
=
1.
DNA
binding
antibacterial
analysis
with
have
also
analysed.
In
DNA‐binding
analysis,
data
confirm
interaction
between
DNA.
Furthermore,
fact
more
effective
at
killing
bacteria
shows
metal
ion's
chelation
ligand
makes
it
lipophilic.
Язык: Английский
Thiazole Functionalization of Thiosemicarbazone for Cu(II) Complexation: Moving toward Highly Efficient Anticancer Drugs with Promising Oral Bioavailability
Song-Yu Luo,
Chun-Mei Zeng,
Ping Xu
и другие.
Molecules,
Год журнала:
2024,
Номер
29(16), С. 3832 - 3832
Опубликована: Авг. 13, 2024
In
this
work,
we
report
the
synthesis
of
a
new
thiosemicarbazone-based
drug
N′-(di(pyridin-2-yl)methylene)-4-(thiazol-2-yl)piperazine-1-carbothiohydrazide
(HL)
featuring
thiazole
spectator
for
efficient
coordination
with
Cu(II)
to
give
[CuCl(L)]2
(1)
and
[Cu(NO3)(L)]2
(2).
Both
1
2
exhibit
dimeric
structures
ascribed
presence
di-2-pyridylketone
moieties
that
demonstrate
dual
functions
chelation
intermolecular
bridging.
HL,
1,
are
highly
toxic
against
hepatocellular
carcinoma
cell
lines
Hep-G2,
PLC/PRF/5,
HuH-7
half
maximal
inhibitory
concentration
(IC50)
values
as
low
3.26
nmol/mL
(HL),
2.18
(1),
2.54
×
10−5
(2)
PLC/PRF/5.
While
free
ligand
HL
may
elicit
its
anticancer
effect
via
sequestration
bio-relevant
metal
ions
(i.e.,
Fe3+
Cu2+),
also
capable
generating
cytotoxic
reactive
oxygen
species
(ROS)
inhibit
cancer
proliferation.
Our
preliminary
pharmacokinetic
studies
revealed
oral
administration
(per
os,
PO)
has
significantly
longer
half-life
t1/2
21.61
±
9.4
h,
nearly
doubled
compared
intravenous
(i.v.)
11.88
1.66
certifying
an
effective
chemotherapeutic
PO
administration.
Язык: Английский