Heterocyclic urea compound, and drug composition and application thereof
US11014895B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Jan 1, 2018 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Jan 1, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D413/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.