Last Updated: November 6, 2026

Details for Patent: 3,717,634

Name: Drug Patent Intelligence for US Patent 3717634
Creator: DrugPatentWatch
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Summary for Patent: 3,717,634

Title:	N-(heteroarcyclic)piperazinylalkyl-azaspiroalkanediones
Abstract:	THE PRESENT INVENTION CONCERNS THE CLASS OF HETEROCYCLIC CARBON COMPOUNDS COMPRISED OF N-(HETEROARCYCLIC)PIPERAZINYLALKYL DERIVATIVES OF AZASPIROALKANEDIONES WHICH HAVE POTENT AND SPECIFIC TRANQUILIZING ACTION AND ANTIEMETIC PROPERTIES. FURTHER, THIS INVENTION IS CONCERNED WITH THE SYNTHETIC PROCESS FOR THE PREPARATION OF N-(HETEROARCYCLIC)PIPERAZINYLALKYLAZASPIROALKANEDIONES WHICH COMPRISES REACTION OF SPIRO-SUBSTITUTED GLUTARIC ANHYDRIDE OR IMIDE WITH N(HETEROARCYCLIC)PIPERAZINE DERIVATIBES. TYPICAL EMBODIMENTS OF THIS INVENTION ARE 8-(4(4-(2-PYRIMIDINYL)-1-PIPERAZINYL)-BUTYL)-8-AZASPIRO(4.5) DECANE-7,9-DIONE AND 8-(4-(4-(2-PYRIDYL)-1-PIPERAZINYL)) BUTYL)-8-AZASPIRO(4,5) DECANE-7,9-DIONE.
Inventor(s):	Y Wu, J Rayburn
Assignee:	Mead Johnson and Co LLC
Application Number:	US00879604A
Patent Claim Types: see list of patent claims

Drugs Protected by US Patent 3,717,634

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Belgium	759371	⤷ Start Trial
Switzerland	552607	⤷ Start Trial
Switzerland	552608	⤷ Start Trial
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