European Journal of Medicinal Chemistry p. 401 - 413 (2017)
Update date:2022-07-30
Topics:
Thum, Simone
Kokornaczyk, Artur K.
Seki, Tomoaki
De Maria, Monica
Ortiz Zacarias, Natalia V.
de Vries, Henk
Weiss, Christina
Koch, Michael
Schepmann, Dirk
Kitamura, Masato
Tschammer, Nuska
Heitman, Laura H.
Junker, Anna
Wünsch, Bernhard
Targeting CCR2 and CCR5 receptors is considered as promising concept for the development of novel antiinflammatory drugs. Herein, we present the development of the first probe-dependent positive allosteric modulator (PAM) of CCR5 receptors with a 2-benzazepine scaffold. Compound 14 (2-isobutyl-N-({[N-methyl-N-(tetrahydro-2H-pyran-4-yl)amino]methyl}phenyl)-1-oxo-2,3-dihydro-1H-2-benzazepine-4-carboxamide) activates the CCR5 receptor in a CCL4-dependent manner, but does not compete with [3H]TAK-779 binding at the CCR5. Furthermore, introduction of a p-tolyl moiety at 7-position of the 2-benzazepine scaffold turns the CCR5 PAM 14 into the selective CCR2 receptor antagonist 26b. The structure affinity and activity relationships presented here offer new insights into ligand recognition by CCR2 and CCR5 receptors.
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