Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 25, 2021
Patent Application Number
16477779
Date Filed
January 1, 2018
Patent Primary Examiner
Patent abstract
A heterocyclic urea compound, and specifically discloses an indoleamine-2,3-dioxygenase inhibitor of a heterocyclic urea compound, which solves the problems of weak curative effect and larger toxic and side effects of existing immunological therapy drugs. The invention further provides a preparation method for an indoleamine-2,3-dioxygenase inhibitor of a heterocyclic urea compound, and an application of the indoleamine-2,3-dioxygenase inhibitor of a heterocyclic urea compound or a pharmaceutically acceptable salt thereof in preparing drugs for treating or preventing tumors.
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