US2008161573A1PendingUtilityA1

Process for the preparation of imiquimod and intermediates thereof

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Assignee: DIPHARMA SPAPriority: Nov 4, 2003Filed: Oct 16, 2007Published: Jul 3, 2008
Est. expiryNov 4, 2023(expired)· nominal 20-yr term from priority
Inventors:Lino ColomboEnrico MariottiPietro AllegriniGraziano Castaldi
C07D 471/04
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Claims

Abstract

Novel intermediates useful for the preparation of Imiquimod and a process for the preparation of Imiquimod with the intermediates.

Claims

exact text as granted — not AI-modified
1 . 1-Isobutyl-1,5-dihydro-imidazo[4,5-a]quinoline-4-one, tautomeric forms and isomers thereof.

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