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Farmhispania SA Y Lab Boizot S
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Farmhispania SA Y Lab Boizot S
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Priority to ES538771ApriorityCriticalpatent/ES8601971A1/en
Publication of ES538771A0publicationCriticalpatent/ES538771A0/en
Publication of ES8601971A1publicationCriticalpatent/ES8601971A1/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
The process comprises reaction of sodium salt of diacetic acid amine of formula (II) with 4-chlorobutyric acid of formula (III) to give butyric acid of formula (IV). This is transformed by thionyl chloride to the corresponding chloride of formula (V) for reaction with piperazine of formula (VI) to produce cpd. of formula (I). The reaction to produce cpd. (V) is carried out with molar excess of thionyl chloride, a solvent such as a aromatic hydrocarbon, and an acceptor.
ES538771A1984-12-181984-12-18Preparation of tranquillising agent
ExpiredES8601971A1
(en)
Procedure for the obtaining of derivatives of acids 3,3'triaril-metanodicarboxilicos. (Machine-translation by Google Translate, not legally binding)