中文名 | 普啉索旦 |
英文名 | Prinoxodan |
别名 | 普啉索旦 化合物 T12720 |
英文别名 | RGW2938 Prinoxodan Prinoxodan (RGW2938) 2(1H)-Quinazolinone, 3,4-dihydro-3-methyl-6-(1,4,5,6-tetrahydro-6-oxo-3-pyridazinyl)- |
CAS | 111786-07-3 |
化学式 | C13H14N4O2 |
分子量 | 258.28 |
密度 | 1.47±0.1 g/cm3(Predicted) |
熔点 | >250 °C |
酸度系数 | 13.58±0.40(Predicted) |
存储条件 | Room Temprature |
体外研究 | Prinoxodan (RG W-2938) is an orally effective positive inotropic/vasodilator agent. Prinoxodan is a new nonglycoside, noncatecholamine cardiotonic/vasodilator agent is examined in vitro in isolated guinea pig hearts; in the latter, Prinoxodan 5 nmol-5 μmol increases contractility in a dose-related fashion. |
体内研究 | Prinoxodan (RG W-2938) is a new nonglycoside, noncatecholamine cardiotonic/vasodilator agent is examined in vivo in anesthetized and conscious dogs. Prinoxodan 30-300 μg/kg administered intravenously (i.v.) to anesthetized dogs increases contractile force while decreasing arterial pressure and total peripheral resistance (TPR) in a dose-related manner. Heart rate (HR) is only slightly increased, and aortic flow is not appreciably altered. A single oral dose of Prinoxodan 0.3 mg/kg administered to conscious chronically instrumented dogs produces a marked and sustained increase in contractility 15-240 min after treatment while only slightly increasing HR. The effects of Prinoxodan 30-300 μg/kg, i.v. are studied in a mecamylamine-propranolol-induced model of heart failure. Prinoxodan effectively reverses the drug-induced heart failure by increasing myocardial contractility and decreasing arterial pressure while only slightly affecting HR. |
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