Hydrazinderivate der Phtalazin- und Pyridazinreihe
作者:J. Druey、B. H. Ringier
DOI:10.1002/hlca.19510340122
日期:——
Es werden Hydrazinoderivate des Phtalazins und des Pyridazins beschrieben, über deren pharmakologisches Interesse an anderer Stelle berichtet worden ist. Die am Grundtypus vorgenommenen chemischen Abwandlungen betreffen die Substitutionen am heterocyclischen oder aromatischen Ring, den Ersatz des aromatischen Kerns durch den Pyridinring und schliesslich Veränderungen am Hydrazinrest.
The present invention relates to both a novel method of preparing hydralazine hydrochloride and to a novel method of preparing hydrazine derivatives of compounds containing a pyridazine ring, including, for example, pyridazines, phthalazines and other compounds containing the pyridazine ring.
The present invention relates to stable and highly purified stable hydralazine hydrochloride compositions and stable hydralazine-containing pharmaceutical compositions. A sterile aqueous injectable pharmaceutical composition suitable for parenteral administration is described comprising a therapeutically effective dose of hydralazine hydrochloride in a pharmaceutically acceptable carrier or diluent wherein said hydralazine hydrochloride is essentially free of phthalazines, hydrazine and metal ions. In addition, a stable sterile aqueous pharmaceutical composition comprising hydralazine hydrochloride in a pharmaceutically acceptable salt or diluent is described that is colorless and has no visible particulate matter.
The present teachings relate to piperazine metabotropic glutamate receptor 5 (mGluR5) negative allosteric modulators having Formula I:
wherein the constituent variables are as defined herein. The present teachings further relate to methods for the preparation of the compounds, and to methods for using the compounds for treatment of diseases and disorders including schizophrenia, paranoia, depression, manic-depressive illness and anxiety.