Metabolic stabilit
Condition Incuba
ion
ime
h
Mean % from
0 Condition
Incuba
ion
Mean % from
0 Condition
Incuba
ion
Concen
ra
ion
%from
0
Incubation of
RI-M4-01
ith li
er microsomes at 10 µM Positif Controls Stability control
Human Human
Concen
ra
ion
M
Peak area
coun
s
0 5.92 6.60 6.26 100.00 0 807850 822904 815377 100.00 06.88100.00
1 3.60 3.83
3.72 59.34
4 282115 289708
285912 35.06
46.89
100.22
4 3.54 3.53 3.54 56.48
0 6.17 6.97 6.57 100.00
4 6.27 6.76 6.52 99.22
with NADPH
Omeprazol (0.5µM)
without
microsomes
without NADPH
Incubation of ORI-M4-01 with liver microsomes (presence
NADPH)
human T0
Human T1h
Condition Incubation time (h) Mean % from T0 Condition
Incuba
ion
time (h)
Mean % from T0
0 6.53 6.82 6.68 100.00 0 784238 776276 780257 100.00
1 0.66 0.71 0.69 10.27 4 88662 90145 89403 11.46
4 0.55 0.09 0.32 4.77
Mou
e Mou
e
Concentration (µM) Peak area (counts)
with NADPH
Omeprazol (0.5µM)
80
100
120
human T4h
Mouse T0
Mouse T1h
Mouse T4h
Rat T0
Rat T1h
0 5.33 6.30 5.82 100.00
4 6.32 6.12 6.22 106.90
Condition Incubation time (h) Mean % from T0 Condition
Incuba
ion
Mean % from T0
without NADPH
Rat Rat
Concentration (µM) Peak area (counts)
40
60
% from T0
Rat T4h
0 6.47 6.07 6.27 100.00 0 753875 779072 766473 100.00
1 1.47 1.56 1.52 24.20 4 57602 59998 58800 7.67
4 1.15 1.32 1.23 19.65
0 6.46 6.50 6.48 100.00
4 6.12 6.63 6.38 98.39
without NADPH
with NADPH
Omeprazol (0.5µM)
0
20
Incubation
www.m4.de
One ste
F introduction
• onestepreactionfromstable
intermediate
byproductA
• desiredF‐productformed
• by‐productsknown
byproductB
• adaptationandoptimisationfor
18Fhotlabelling
• alternativel
11C
robabl
doable
F‐product
www.m4.de
Second
ear outcome
• sufficientpotencyonLRRK2lownMorbetter
• verygoodLRRK2selectivity
• verygoodtargetengagementinvitro
•
oodbrain
enetration
• sufficientbrainfreefraction
• lateintroductionof
11
Cand
18
Fareviableoptions
extra optimization loop solved efflux problem
• cold“markerchemistry” established
• radiochemistryandPETcollaborationwithProf.GildehausandProf.
Bartenstein Nuklearmedizin LMU
www.m4.de
,
,
We welcome you at
www.origenis.com
origenis GmbH
Am Klopferspitz 19a
82152 Martinsried
Germany
Tel. +49-89-7801676-0
Fax +49-89-7801676-777
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