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Sandoz AG
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Sandoz AG
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Publication of ES277223A1publicationCriticalpatent/ES277223A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Process for obtaining heterocyclic compounds, of general formula I, ** (See formula) ** wherein R1 and R3 each denote a hydrogen atom or an alkyl radical containing from 1 to 3 carbon atoms inclusive, and R2 means a hydrogen atom, an alkyl radical containing from 1 to 3 carbon atoms inclusive or the benzyl radical, and (see formula) means the radical (see formula) or (see formula), and its acid addition salts, whose process is characterized in that a compound of general formula II, ** (See formula) ** where R3 and (see formula) have the respective meanings above and X means a chlorine or bromine atom or the radical -OSO3H, reacts with a salt of a compound of general formula III, ** (See formula) ** wherein R1 and R2 have the respective above meanings, in the presence of a tertiary base and, when an acid addition salt is required, salification is carried out with an organic or inorganic acid. (Machine-translation by Google Translate, not legally binding)
ES277223A1961-05-101962-05-10Procedure for obtaining heterocyclic compounds (Machine-translation by Google Translate, not legally binding)
ExpiredES277223A1
(en)
Procedure for obtaining derivatives of 5-amino-1,5-diazaciclooctano and its salts of addition (Machine-translation by Google Translate, not legally binding)