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Priority to RO107761ApriorityCriticalpatent/RO86000B1/ro
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Publication of RO86000B1publicationCriticalpatent/RO86000B1/ro
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
Procedeul de preparare a unor mono-baze mannich derivate ale cromanonei-4, conform inventiei, se caracterizeaza prin aceea ca se trateaza 3:, -5'-diclor-2'-hidroxi-propiofenona cu o solutie apoasa de formaldehida de concentratie 35% si cu o amina secundara aleasa dintre dimetilamina, dietilamina, pirolidina, piperidina sau morfolina la temperatura camerei; dupa 24 h se separa produsul uleios sau cristalin cu apa, se extrage cu cloroform, se trateaza reziduul în alcool etilic cu acid clorhidric concentrat si se recristalizeaza din acetona.
RO107761A1982-06-031982-06-03Procedeu de preparare a unor mono-baze mannich derivate ale cromanonei-4 cu actiune fiziologica
RO86000B1
(ro)
Analogifremgangsmaade til fremstilling af 2-dipropylamino-(5 eller 7)-formylamino-6-hydroxy-1,2,3,4-tetrahydronaphthalen og farmakologisk acceptable syreadditionssalte deraf