Journal of Molecular Structure (2020)
Update date:2022-08-17
Topics:
Li, Ming-Cheng
Liu, Wei-Wei
Liu, Yu-Wei
Min, Wei
Shi, Da-Hua
Si, Xin-Xin
Song, Meng-qiu
Zhang, Zhao-yuan
Coupling of two distinct pharmacophores, carbazole and coumarin, endowed with different biological properties, afforded four hybrid compounds. The structures of the carbazole-coumarin hybrids were characterized by FT-IR, NMR, HRMS and single-crystal X-ray diffraction studies. All of these compounds exhibited significant acetylcholinesterase inhibitory activities. Among them, compound 4-((5-(9H-carbazol-9-yl)pentyl)oxy)-2H-chromen-2-one (3d) exhibited the best inhibition activity with IC50 of 3.75 μM for acetylcholinesterase from electric eel and 70.51 μM for human recombinant acetylcholinesterase. Moreover, the compound 7-(3-(9H-carbazol-9-yl propoxy)-4-methyl-2H-chromen-2-one (3a) had the best antioxidant activity. The docking studies demonstrated that compound 3d could interact with both the catalytic active site and the peripheral anionic site of acetylcholinesterase. These attributes imply carbazole-coumarin hybrids as multifunctional agents for the Alzheimer's disease treatment.
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