期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 46, 期 8, 页码 1504-1511出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm021078o
关键词
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1,3-Dioxolane-based compounds (2-14) were synthesized, and the pharmacological profiles at alpha(1)-adrenoceptor subtypes were assessed by functional experiments in isolated rat vas deferens (alpha(1A)), spleen (alpha(1B)), and aorta (alpha(1D)). Compound 9, with a pA(2) of 7.53, 7.36, and 8.65 at alpha(1A), alpha(1B), and alpha(1D)), respectively, is the most potent antagonist of the series, while compound 10 with a pA(2) of 8.37 at alpha(1D) subtype and selectivity ratios of 162 (alpha(1D)/alpha(1A)) and 324 (alpha(1D))/alpha(1B)) is the most selective. Binding assays in CHO cell membranes expressing human cloned alpha(1)-adrenoceptor subtypes confirm the pharmacological profiles derived from functional experiments, although the selectivity values are somewhat lower. Therefore, it is concluded that 1,3-dioxolane-based ligands are a new class of alpha(1)-adrenoceptor antagonists.
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