3-Hydroxymethyl-s-triazolo[3,4-a]phthalazine, a novel urinary hydralazine metabolite in man. 1975

H Zimmer, and R Glaser, and J Kokosa, and D A Garteiz, and E V Hess, and A Litwin

The elucidation of the structure of a new major metabolic product of hydralazine, 3-hydroxymethyl-s-triazolo[3,4-a]-phthalazine, is described. The structures of several other previously described metabolites of the drug, phthalazone, s-triazolo[3,4-a]phthalazine, and 3-methyl-s-triazolo[3,4-a]phthalazine, are confirmed. A metabolic pathway of hydralazine is also proposed.

UI MeSH Term Description Entries
D006973 Hypertension Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more. Blood Pressure, High,Blood Pressures, High,High Blood Pressure,High Blood Pressures
D010793 Phthalazines Bicyclic heterocyclic compounds containing a BENZENE ring fused to PYRIDAZINE.
D011724 Pyridazines Six-membered rings with two adjacent nitrogen atoms also called 1,2-diazine.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006830 Hydralazine A direct-acting vasodilator that is used as an antihypertensive agent. Hydrallazin,Apresoline,Apressin,Apressoline,Hydralazine Hydrochloride,Hydralazine mono-Hydrochloride,Hydrazinophthalazine,Nepresol,Hydralazine mono Hydrochloride,Hydrochloride, Hydralazine,mono-Hydrochloride, Hydralazine
D013058 Mass Spectrometry An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers. Mass Spectroscopy,Spectrometry, Mass,Spectroscopy, Mass,Spectrum Analysis, Mass,Analysis, Mass Spectrum,Mass Spectrum Analysis,Analyses, Mass Spectrum,Mass Spectrum Analyses,Spectrum Analyses, Mass
D014230 Triazoles Heterocyclic compounds containing a five-membered ring with two carbon atoms and three nitrogen atoms with the molecular formula C2H3N3. Triazole

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