Tacripyrines, the first tacrine− dihydropyridine hybrids, as multitarget-directed ligands for the treatment of Alzheimer's disease

J Marco-Contelles, R León, C De Los Ríos… - Journal of medicinal …, 2009 - ACS Publications
J Marco-Contelles, R León, C De Los Ríos, A Samadi, M Bartolini, V Andrisano, O Huertas…
Journal of medicinal chemistry, 2009ACS Publications
Tacripyrines (1− 14) have been designed by combining an AChE inhibitor (tacrine) with a
calcium antagonist such as nimodipine and are targeted to develop a multitarget therapeutic
strategy to confront AD. Tacripyrines are selective and potent AChE inhibitors in the
nanomolar range. The mixed type inhibition of hAChE activity of compound 11 (IC50 105±15
nM) is associated to a 30.7±8.6% inhibition of the proaggregating action of AChE on the Aβ
and a moderate inhibition of Aβ self-aggregation (34.9±5.4%). Molecular modeling indicates …
Tacripyrines (114) have been designed by combining an AChE inhibitor (tacrine) with a calcium antagonist such as nimodipine and are targeted to develop a multitarget therapeutic strategy to confront AD. Tacripyrines are selective and potent AChE inhibitors in the nanomolar range. The mixed type inhibition of hAChE activity of compound 11 (IC50 105 ± 15 nM) is associated to a 30.7 ± 8.6% inhibition of the proaggregating action of AChE on the Aβ and a moderate inhibition of Aβ self-aggregation (34.9 ± 5.4%). Molecular modeling indicates that binding of compound 11 to the AChE PAS mainly involves the (R)-11 enantiomer, which also agrees with the noncompetitive inhibition mechanism exhibited by p-methoxytacripyrine 11. Tacripyrines are neuroprotective agents, show moderate Ca2+ channel blocking effect, and cross the blood−brain barrier, emerging as lead candidates for treating AD.
ACS Publications
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