Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CH760864Aexternal-prioritypatent/CH473142A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES314013A1publicationCriticalpatent/ES314013A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
"Procedure for obtaining pyridazines" of general formula ** (See formula) ** where R means a hydrogen atom or a lower alkyl radical, the symbols Alk are lower alkylene radicals that separate the oxygen atoms by at least 2 carbon atoms, and n is an integer number, maximum 2; characterized in that the compounds of formulas ** (See formula) ** they are reacted directly or stepwise with each other, where R, Alk and n have the indicated meaning Z means hydrogen or the nitro radical and X and Y are dissociable residues that during the reaction leave an ethylene- (1, 2) bridge, and nitrate the compounds obtained in which Z means hydrogen. (Machine-translation by Google Translate, not legally binding)
ES0314013A1964-06-111965-06-09Procedure for the obtaining of pyridacines. (Machine-translation by Google Translate, not legally binding)
ExpiredES314013A1
(en)
Procedure for the preparation of new compounds of 1,4-benzodioxane and 1,5-benzodioxane and of 1,5-benzodioxepane (Machine-translation by Google Translate, not legally binding)