产品
编 号:F446463
分子式:C19H25NO6
分子量:363.4
产品类型
结构图
CAS No: 74513-77-2
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产品详情
生物活性:
Ro 363, an effective inotropic stimulant, is a potent and highly selective β1-adrenoceptor agonist. RO 363 is a cardiovascular modulator that reduces diastolic blood pressure and pronounces increases in myocardial contractility.
体内研究:
In chloralose-anaesthetized cats, Ro 363, when compared to epinephrine (adrenaline), is essentially devoid of arrhythmogenic activity in animals in which cardiac sensitization is induced by U-0882 or halothane.
体外研究:
Isolated perfused heart preparations from guinea-pigs developed arrhythmic contractions following the administration of Ro 363 in doses producing 70-100% of its maximal chronotropic responses. In spontaneously contracted tracheal preparations from the guinea-pig, RO 363 is a full agonist and is approximately half as potent as (-)-Isoprenaline. These effects of RO 363 are due to the activation of a population of β1-receptors in the tissue since RO 363 and (-)-Isoprenaline have the same relative potencies in trachea, cardiac and ileal preparations.