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US 4,382,935 AGranted
Analgesic drug containing a derivative of benzylpiperazine
AssigneesAndre Buzas, Jean-Marie Melon, Laboratoires Sauba S.A., Universite D'Orleans
InventorsAndre Buzas, Jean-Marie Melon, Gilbert Lavielle, Andre Champagnac
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Abstract
The drug contains an active substance consisting of 1-(3'-benzofuryl)-4-benzylpiperazine. In order to prepare the compound, a reaction is carried out with reflux between 3-coumaranone and N-benzylpiperazine in the presence of acetic acid and in an aromatic solvent.
Claims2
An analgesic pharmaceutical composition containing an analgesically-effective amount of 1-(3'-benzofuryl)-4-benzylpiperazine and a pharmaceutically acceptable excipient.
Dependencies are inferred from the claim text.