Synthesis, structure–activity relationship and biological evaluation of novel arylpiperzines as α1A/1D-AR subselective antagonists for BPH
摘要:
A series of novel arylpiperazine derivatives as alpha(1A/1D)-adrenergic receptors (AR) subtype selective antagonists were designed, synthesized and evaluated for their antagonistic activities towards alpha(1)-ARs (alpha(1A), alpha(1B), and alpha(1D)). Compounds 9, 12, 13, 15, 17, 18, 21, 22, 25 and 26 exerted strong antagonistic effects on alpha(1A) and/or alpha(1D) subtypes over alpha(1B) in vitro. SAR analysis indicated that chloride at the ortho-phenyl position for compound 17 was beneficial for the highest alpha(1A/D)-AR sub-selectivity. Moreover, molecular docking study of compound 17 with the homology-modeled alpha(1)-ARs (alpha(1A), alpha(1B), and alpha(1D)) structures exhibited differences of key amino resides in the docking pocket which may influence the subtype selectivity. ILE 193 of alpha(1A) was validated as the key residues for binding ligand. This work provides useful information for finding more new potential drugs in clinic in treating benign prostatic hyperplasia (BPH). (c) 2015 Elsevier Ltd. All rights reserved.
arylpiperazine derivatives was synthesized. The in vitro cytotoxic activities of all synthesized compounds against three human prostate cancer celllines (PC-3, LNCaP, and DU145) were evaluated by a CCK-8 assay. Compounds 8 , 10 , 13 , 17 and 20 exhibited strong cytotoxic activities against the tested cancer celllines (IC 50 <3 μmol/L). In addition, these compounds exhibited weak cytotoxic effects on
The present disclosure is directed, in part, to compounds and methods for imaging myocardial perfusion, comprising administering to a patient a contrast agent which comprises a compound that binds MC-1, and an imaging moiety, and scanning the patient using diagnostic imaging.