Synthesis and pharmacological evaluation of dual ligands for melatonin (MT1/MT2) and serotonin 5-HT2C receptor subtypes (II)

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Ettaoussi, Mohamed | Peres, Basile | Errazani, A | Boutin, J.A. | Caignard, Daniel-Henri | Delagrange, Philippe | Berthelot, Pascal | Melnyk, Patricia | Yous, Saïd

Edité par CCSD ; Elsevier -

International audience. In this paper we report the investigation of C-3 and β-acetamide positions of agomelatine analogues. Concomitant insertion of a hydroxymethyl in the β-acetamide position and aliphatic groups in C-3 position produced a positive effect on both melatonin (MT1, MT2) and serotonin (5-HT2C) binding affinities. In particular, the allyl 6b and ethyl 15a represented the more interesting compounds of this series. Furthermore, the introduction of methyl cycloalkyl groups (compounds 11a, 12a) exhibited no change in both MT2 and 5-HT2C binding affinities while a decrease of MT1 binding affinity occurred leading to an MT2 selectivity. Finally, the acetamide modulation has led to methyl thiourea 11h, with a weak MT2 selectivity.

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