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Servicios y Suministros Farmaceuticos SA
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Servicios y Suministros Farmaceuticos SA
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Priority to ES552060ApriorityCriticalpatent/ES8704902A1/en
Publication of ES552060A0publicationCriticalpatent/ES552060A0/en
Publication of ES8704902A1publicationCriticalpatent/ES8704902A1/en
N-(4-Aminobutyl) 3,3-tetramethylene glutarimide, for use as an intermediate in synthesis, is made by reacting one mole of 3,3-tetramethylene glutaric anhydride with two moles of tetramethylene diamine. Reaction is in toluene in a Dean-Stark apparatus with water-removal system, under reflux.