The Journal of Organic Chemistry,
Год журнала:
2022,
Номер
87(21), С. 14308 - 14318
Опубликована: Сен. 30, 2022
Chemo-
and
diastereoselective
1,4-conjugate
additions
of
anionic
radical
C-nucleophiles
to
a
chiral
bicyclic
dehydroalanine
(Dha)
are
described.
Of
particular
importance,
carbon
photolysis
by
catalytic
photoredox
process
using
simple
method
with
metal-free
photocatalyst
provides
exceptional
yields
selectivities
at
room
temperature.
Moreover,
these
offer
an
excellent
starting
point
for
synthesizing
enantiomerically
pure
carbon-β-substituted
unnatural
α-amino
acids
(UAAs),
which
could
have
high
potential
applications
in
chemical
biology.
Pharmaceuticals,
Год журнала:
2022,
Номер
15(8), С. 999 - 999
Опубликована: Авг. 14, 2022
Nowadays,
the
selective
introduction
of
fluorine
into
bioactive
compounds
is
a
mature
strategy
in
design
drugs
allowing
to
increase
efficiency,
biological
half-life
and
bio-absorption.
On
other
hand,
amino
acids
(AAs)
represent
one
most
ubiquitious
classes
naturally
occurring
organic
compounds,
which
are
found
over
40%
newly
marked
small-molecule
pharmaceutical
medical
formulations.
The
primary
goal
this
work
underscore
two
major
trends
modern
pharmaceuticals.
first
dealing
with
unique
structural
characteristics
provided
by
structure
featuring
an
abundance
functionality
presence
stereogenic
center,
all
bodes
well
for
successful
development
targeted
bioactivity.
second
related
fine-tuning
desired
activity
pharmacokinetics
fluorine.
Historically,
both
were
developed
separately
as
innovative
prolific
approaches
drug
design.
However,
recent
decades,
these
clearly
converging
leading
ever-increasing
number
approved
pharmaceuticals
containing
features
Molecules,
Год журнала:
2023,
Номер
28(9), С. 3651 - 3651
Опубликована: Апрель 22, 2023
The
strategic
fluorination
of
oxidatively
vulnerable
sites
in
bioactive
compounds
is
a
relatively
recent,
widely
used
approach
allowing
us
to
modulate
the
stability,
bio-absorption,
and
overall
efficiency
pharmaceutical
drugs.
On
other
hand,
natural
tailor-made
amino
acids
are
traditionally
as
basic
scaffolds
for
development
molecules.
main
goal
this
review
article
emphasize
these
general
trends
featured
recently
approved
Ukrainian Chemistry Journal,
Год журнала:
2025,
Номер
91(2), С. 55 - 90
Опубликована: Март 25, 2025
Fluorine
is
a
key
element
in
drug
design
due
to
its
ability
enhance
metabolic
stability,
binding
affinity,
and
bioavailability.
Fluorine’s
properties
lead
more
stable
drugs
with
longer
half-lives,
reducing
dosing
frequency
improving
patient
compliance.
Its
small
size
high
electronegativity
also
improve
resulting
effective
treatments
lower
doses.
For
example,
fluorine
increases
compound’s
cross
cell
membranes.
This
article
highlights
advancements
chiral,
fluorine-containing
pharmaceuticals
introduced
over
the
past
five
years,
focusing
on
their
synthesis,
therapeutic
benefits,
mechanisms
of
action,
impact
efficacy
safety.
Chiral
molecules,
essential
development,
exist
two
enantiomeric
forms
distinct
biological
activities.
Synthesizing
involves
techniques
like
asymmetric
synthesis
produce
pure
enantiomers,
increased
potency,
selectivity,
reduced
side
effects.
Understanding
action
provides
valuable
insights
into
Reviewing
recently
FDA-approved
chiral
offers
chemistry
development
future
innovations.
Recent
FDA
approvals
highlight
significance
various
areas,
enabling
targeted
treatments.
Analyzing
these
reveals
trends
shaping
development’s
future.
The
addresses
need
for
research
self-disproportionation
enantiomers
(SDE)
fluorinated
compounds
concerns
about
excessive
levels.
SDE
can
affect
pharmaceutical
product
purity.
Research
ensures
quality.
Additionally,
fluorine’s
widespread
use
raises
environmental
health
concerns,
necessitating
studies
long-term
effects
mitigation
strategies.
Chirality,
Год журнала:
2021,
Номер
34(1), С. 86 - 103
Опубликована: Окт. 29, 2021
Abstract
Amino
acids
(AAs)
play
an
important
role
in
the
modern
health
industry
as
key
synthetic
precursors
for
pharmaceuticals,
biomaterials,
biosensors,
and
drug
delivery
systems.
Currently,
over
30%
of
small‐molecule
drugs
contain
residues
tailor‐made
AAs
or
derived
from
them
amino‐alcohols
di‐amines.
In
this
review
article,
we
profile
12
AA‐derived
new
pharmaceuticals
approved
by
FDA
2020.
These
newly
introduced
include
Tazverik
(epithelioid
sarcoma),
Gemtesa
(overactive
bladder),
Zeposia
(multiple
sclerosis),
Byfavo
(induction
maintenance
procedural
sedation),
Cu
64
dotatate,
Gallium
68
PSMA‐11
(both
PET
imaging),
Rimegepant
(acute
migraine),
Zepzelca
(lung
cancer),
Remdesivir
(COVID‐19),
Amisulpride
(nausea
vomiting),
Setmelanotide
(obesity),
Lonafarnib
(progeria
syndrome).
For
each
compound,
describe
spectrum
biological
activity,
medicinal
chemistry
discovery,
preparation.
Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(25)
Опубликована: Март 25, 2022
Abstract
An
unprecedented
highly
enantioselective
Ru‐catalyzed
direct
asymmetric
reductive
amination
of
α‐keto
amides
with
ammonium
salts
has
been
disclosed,
efficiently
offering
valuable
enantioenriched
N‐unprotected
unnatural
α‐amino
acid
derivatives
bearing
a
broad
range
aryl
or
alkyl
α‐substituents.
This
protocol
features
easily
accessible
substrates,
good
functional‐group
tolerance
and
excellent
enantiocontrol,
making
it
complementary
approach
to
the
known
methods.
Moreover,
this
method
is
also
applicable
preparation
containing
an
additional
stereogenic
center
at
β‐position
through
dynamic
kinetic
resolution
(DKR)
process.
Convenient
transformations
obtained
products
into
chiral
acids,
drug
intermediates,
peptides,
organocatalysts/ligands
further
showcase
utility
method.
Advanced Synthesis & Catalysis,
Год журнала:
2024,
Номер
366(14), С. 3050 - 3084
Опубликована: Май 22, 2024
Abstract
Tetrahydro‐
β
‐carbolines
(TH
Cs)
also
known
as
tryptolines
serve
important
structural
elements
in
natural
products
and
pharmaceutical
compounds,
they
are
utilized
drug
discovery.
They
display
diverse
bioactivities,
including
anticancer,
antifungal,
antiparasitic,
anti‐ischemic,
anti‐inflammatory,
other
activities.
Besides
their
pharmacological
biological
significance,
these
motifs
extensively
used
the
production
of
bioactive
compounds.
This
review
is
intended
to
summarize
recent
advancements
chemistry
this
compound
class,
synthesis
applications
organic
synthetic
intermediates
molecules.
Molecules,
Год журнала:
2022,
Номер
27(12), С. 3797 - 3797
Опубликована: Июнь 13, 2022
γ-Aminobutyric
acid
(GABA)
represents
one
of
the
most
prolific
structural
units
widely
used
in
design
modern
pharmaceuticals.
For
example,
β-substituted
GABA
derivatives
are
found
numerous
neurological
drugs,
such
as
baclofen,
phenibut,
tolibut,
pregabalin,
phenylpiracetam,
brivaracetam,
and
rolipram,
to
mention
just
a
few.
In
this
review,
we
critically
discuss
literature
data
reported
on
preparation
substituted
using
Michael
addition
reaction
key
synthetic
transformation.
Special
attention
is
paid
asymmetric
methods
featuring
synthetically
useful
stereochemical
outcomes
operational
simplicity.
The Journal of Organic Chemistry,
Год журнала:
2023,
Номер
88(18), С. 13169 - 13177
Опубликована: Сен. 6, 2023
The
incorporation
of
fluorinated
groups
into
peptides
significantly
affects
their
biophysical
properties.
We
report
herein
the
synthesis
Fmoc-protected
trifluoromethylthiolated
tyrosine
(CF3S-Tyr)
and
tryptophan
(CF3S-Trp)
analogues
on
a
gram
scale
(77–93%
yield)
demonstrate
use
as
highly
hydrophobic
building
blocks
for
peptide
chemistry.
developed
methodology
was
successfully
applied
to
late-stage
regioselective
trifluoromethylthiolation
Trp
residues
in
short
(66–80%
various
CF3S-analogues
biologically
active
monoamines.
To
prove
concept,
Fmoc-(CF3S)Tyr
-Trp
were
incorporated
endomorphin-1
chain
(EM-1)
model
tripeptides
by
solid-phase
synthesis.
A
remarkable
enhancement
local
hydrophobicity
quantified
chromatographic
index
determination
method,
demonstrating
high
potential
CF3S-containing
amino
acids
rational
design
bioactive
peptides.
Molecules,
Год журнала:
2021,
Номер
26(9), С. 2757 - 2757
Опубликована: Май 7, 2021
The
purpose
of
this
review
is
to
highlight
the
necessity
conducting
tests
gauge
magnitude
self-disproportionation
enantiomers
(SDE)
phenomenon
ensure
veracity
reported
enantiomeric
excess
(ee)
values
for
scalemic
samples
obtained
from
enantioselective
reactions,
natural
products
isolation,
etc.
SDE
always
occurs
some
degree
whenever
any
sample
subjected
physicochemical
processes
concomitant
with
fractionation
sample,
thus
leading
erroneous
reporting
true
ee
if
due
care
not
taken
either
preclude
effects
by
measurement
prior
application
processes,
suppressing
SDE,
or
evaluating
all
fractions
sample.
Or
even
avoiding
altogether
possible.
There
a
clear
conduct
assess
applied
and
updated
improved
recommendations
described
herein
cover
chromatography
involving
gas-phase
transformations
such
as
evaporation
sublimation.