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US10662201B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10662201-B2 |
| Application number | US-201816167590-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 23, 2018 |
| Priority date | Dec 15, 2017 |
| Publication date | May 26, 2020 |
| Grant date | May 26, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A compound of chemical formula I: or chemical formula II: or a pharmaceutical acceptable salt thereof is disclosed. R 1 , R 2 , R 3 , and R 4 are independently H, halogen, nitro, hydroxyl, cyano, benzyloxy, C 1 -C 8 straight or branched alkyl, C1-C8 straight or branched haloalkyl, C 1 -C 8 straight or branched alkoxy.
First claim
Opening claim text (preview).
What is claimed is: 1. A compound of chemical formula I or II: or a pharmaceutical acceptable salt thereof, wherein R 1 , R 2 , R 3 , and R 4 are independently H, halogen, nitro, hydroxyl, cyano, benzyloxy, C 1 -C 8 straight or branched alkyl, C 1 -C 8 straight or branched haloalkyl, C 1 -C 8 straight or branched alkoxy. 2. The compound of claim 1 , wherein R 1 is H, R 2 is F, R 3 is H, and R 4 is H. 3. The compound of claim 1 , wherein R 1 is H, R 2 is H, R 3 is F, and R 4 is H. 4. The compound of claim 1 , wherein R 1 is H, R 2 is H, R 3 is CF 3 , and R 4 is H. 5. The compound of claim 1 , wherein R 1 is H, R 2 is H, R 3 is CN, and R 4 is H. 6. The compound of claim 1 , wherein R 1 is F, R 2 is H, R 3 is CN, and R 4 is H. 7. The compound of claim 1 , wherein R 1 is H, R 2 is NO 2 , R 3 is F, and R 4 is H. 8. The compound of claim 1 , wherein R 1 is H, R 2 is CN, R 3 is H, and R 4 is F.
Assignees
Inventors
Classifications
Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID] · CPC title
Antiasthmatics · CPC title
- C07D498/10Primary
Spiro-condensed systems · CPC title
condensed with heterocyclic ring systems, e.g. clavulanic acid · CPC title
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- What does patent US10662201B2 cover?
- A compound of chemical formula I: or chemical formula II: or a pharmaceutical acceptable salt thereof is disclosed. R 1 , R 2 , R 3 , and R 4 are independently H, halogen, nitro, hydroxyl, cyano, benzyloxy, C 1 -C 8 straight or branched alkyl, C1-C8 straight or branched haloalkyl, C 1 -C 8 straight or branched alkoxy.
- Who is the assignee on this patent?
- Liang Chengyuan, Ju Xingke, Tian Lei, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification C07D498/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 26 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).