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Synthesis and In Vitro Pharmacological Evaluation of 5-(Alkoxymethyl)-2-(3-alkylamino-2-hydroxypropoxy)phenylethanones Related to Acebutolol and Celiprolol

Synthesis and In Vitro Pharmacological Evaluation of 5-(Alkoxymethyl)-2-(3-alkylamino-2-hydroxypropoxy)phenylethanones Related to Acebutolol and Celiprolol

Katarína Bruchatá, Andrej Némethy, Ružena Čižmáriková, Eva Račanská, Ladislav Habala

Arch Pharm (Weinheim). 2016 Sep;349(9):733-40.

PMID: 27417385

Abstract:

The structure-activity relationships of 13 analogs of aryloxyaminopropanol type derived from 2-hydroxyphenylethanone as potential β-blockers are described. The synthesized compounds possess an isopropyl or a tert-butyl group in the hydrophilic part of the molecule and an alkoxymethyl substitution in the lipophilic moiety. The target compounds were prepared by an established four-step method and their structures were confirmed by interpretation of their UV, IR, (1) H NMR and (13) C NMR spectra, and by elemental analysis. The β-adrenolytic efficacy of the prepared racemic compounds was determined on isolated guinea pig atria (β1 ) and trachea (β2 ) and expressed as pA2 values against isoprenaline tachycardia. The assumed cardioselectivity was expressed as β1 /β2 ratio and the values of compounds with an alkoxy group (CH3 O, iC3 H5 O, C5 H11 O, CH2 CHCH2 O, CH3 OCH2 CH2 O) in the lipophilic part and with tert-butyl in the hydrophilic part of the molecule were found to be comparable or higher than those of the standards acebutolol and celiprolol. All evaluated substances at a concentration of 10(-7) mol/dm(3) showed also negative chronotropic effects.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP441019916	Acebutolol Related Compound I		441019-91-6	Price

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