Structure-Based Design and Synthesis of Novel Potent Na<sup>+</sup>,K<sup>+</sup>-ATPase Inhibitors Derived from a 5α,14α-Androstane Scaffold as Positive Inotropic Compounds
作者:Sergio De Munari、Alberto Cerri、Mauro Gobbini、Nicoletta Almirante、Leonardo Banfi、Giulio Carzana、Patrizia Ferrari、Giuseppe Marazzi、Rosella Micheletti、Antonio Schiavone、Simona Sputore、Marco Torri、Maria Pia Zappavigna、Piero Melloni
DOI:10.1021/jm030830y
日期:2003.8.1
The design, synthesis, and biological properties of novel inhibitors of the Na(+),K(+)-ATPase as potential positive inotropic compounds are reported. Following our model of superposition between cassaine and digitoxigenin, digitalis-like activity has been elicited from a non-digitalis steroidal structure by suitable modifications of the 5alpha,14alpha-androstane skeleton. The strong hydrophobic interaction
据报道,Na(+),K(+)-ATPase新型抑制剂作为潜在的正性变力性化合物的设计,合成和生物学特性。遵循我们在卡萨因和洋地黄毒苷之间叠加的模型,通过对5alpha,14alpha-androstane骨架进行适当的修饰,从非洋地黄类固醇结构引发了洋地黄样活性。以雄甾烷骨架取反方向,可以有效地获得洋地黄或酪assa碱多环核的强疏水相互作用。因此,我们最近引入的有效药效基团的C-6氧化和在C-3位置的引入(在洋地黄骨架的17位),即O-(ω-氨基烷基)肟,导致了一系列的能够抑制Na(+),K(+)-ATPase的取代雄蕊 它们大多数具有低微摩尔水平的IC(50),并在豚鼠中引起正性肌力作用。在该系列中,当两种化合物时,雄甾烷-3,6,17-三酮(E,Z)-3-(2-氨基乙基)肟(22b,PST 2744)产生强烈的正性肌力作用,而心律失常性低于地高辛。以等熵剂量进行比较。