Design and Synthesis of New Acyl Urea Analogs as Potential σ1R Ligands.

Design and Synthesis of New Acyl Urea Analogs as Potential σ1R Ligands.
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作为潜在 σ1R 配体的新型酰基脲类似物的设计和合成。

DOI:
10.3390/molecules28052319
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发表时间:
2023-03-02
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Sikazwe D
Sikazwe D
中科院分区:
其他
文献类型:
--
作者:
Thapa R;Flores R;Cheng KH;Mochona B;Sikazwe D

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In search of synthetically accessible open-ring analogs of PD144418 or 5-(1-propyl-1,2,5,6-tetrahydropyridin-3-yl)-3-(p-tolyl)isoxazole, a highly potent sigma-1 receptor (σ1R) ligand, we herein report the design and synthesis of sixteen arylated acyl urea derivatives. Design aspects included modeling the target compounds for drug-likeness, docking at σ1R crystal structure 5HK1, and contrasting the lower energy molecular conformers with that of the receptor-embedded PD144418—a molecule we opined that our compounds could mimic pharmacologically. Synthesis of our acyl urea target compounds was achieved in two facile steps which involved first generating the N-(phenoxycarbonyl) benzamide intermediate and then coupling it with the appropriate amines weakly to strongly nucleophilic amines. Two potential leads (compounds 10 and 12, with respective in vitro σ1R binding affinities of 2.18 and 9.54 μM) emerged from this series. These leads will undergo further structure optimization with the ultimate goal of developing novel σ1R ligands for testing in neurodegeneration models of Alzheimer’s disease (AD).
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