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Expired
Application number
GB19244/58A
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Chemische Fabrik Promonta GmbH
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Chemische Fabrik Promonta GmbH
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Publication of GB884661ApublicationCriticalpatent/GB884661A/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Abstract
The invention comprises compounds of the formula <FORM:0884661/IV (b)/1> (wherein R1 and R2 are alkyl radicals each containing at most 5 carbon atoms, or, together with the adjacent nitrogen atom, they form a 5-or 6-membered saturated heterocyclic ring which may contain as a further hereto member an oxygen atom or the group NR3, R3 being an alkyl radical of at most 6 carbon atoms or a benzyl radical, and R4 is an alkylene radical having at most 6 carbon atoms in a straight chain and optionally substituted by methyl groups) and acid-addition salts thereof; and their preparation either by condensing an appropriate 10-(haloacyl)-phenthiazine-9-dioxide with an appropriate amine NHR1R2 or by condensing phenthiazine-9-dioxide with an appropriately substituted acyl halide. The condensations are preferably effected in an inert organic solvent and in the presence of an alkaline condensing agent. Examples are given.
GB19244/58A1957-06-151958-06-16Basically substituted phenthiazine-9-dioxides and process of production thereof
ExpiredGB884661A
(en)
PROCESS FOR MANUFACTURING A PHARMACEUTICAL PREPARATION WITH ANTIMICROBIC ACTION BASED ON A 14-DESOXY-14-ACETOXYMUTILINE DERIVATIVE AND METHOD FOR PREPARING A COMPOUND SUITABLE FOR THE SAID PROCESS.
DECAHYDROCHINOLINE DERIVATIVES, PROCESS FOR THEIR MANUFACTURE, INTERMEDIATE PRODUCTS FOR THEIR MANUFACTURE, THEIR USE AS MEDICINAL PRODUCTS AND PREPARATIONS CONTAINING THEM.