Purine derivatives for the treatment of viral infections
US-9556176-B2 · Jan 31, 2017 · US
US11597704B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11597704-B2 |
| Application number | US-201916977043-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 28, 2019 |
| Priority date | Mar 1, 2018 |
| Publication date | Mar 7, 2023 |
| Grant date | Mar 7, 2023 |
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This application relates to quinazoline derivatives of formula (I), pharmaceutical compositions comprising the compounds of formula (I), and the use of the compounds of formula (I) in the treatment or prevention of a viral infection, of a virus-induced disease, of cancer or of an allergy. In formula (I), R 1 is a C 3-8 alkyl, optionally substituted by one or more substituents independently selected from fluorine, hydroxyl, amino, nitrile, ester, amide, C 1-3 alkyl, or C 1-3 alkoxy, the carbon of R 1 bonded to the amine in the 4-position of the quinazoline is in (R)-configuration, R 2 is hydrogen, deuterium, fluorine, chlorine, methyl, methoxy, cyclopropyl, trifluoromethyl, or carboxylic amide, wherein each of methyl, methoxy and cyclopropyl is optionally substituted by one or more substituents independently selected from fluorine and nitrile, R 3 is hydrogen or deuterium, R 4 is hydrogen, deuterium, fluorine, methyl, carboxylic ester, carboxylic amide, nitrile, cyclopropyl, C 4-7 heterocycle, or 5-membered heteroaryl group, wherein each of methyl, cyclopropyl, C 4-7 heterocycle and 5-membered heteroaryl group is optionally substituted by one or more substituents independently selected from fluorine, hydroxyl, or methyl, R 5 is hydrogen, deuterium, fluorine, chlorine, methyl, or methoxy, provided that at least one of R 2 , R 3 , R 4 and R 5 is not hydrogen.
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The invention claimed is: 1. A compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof, wherein R 1 is of formula (II): wherein n is 0, 1, or 2; or of formula (III): wherein n is 0, 1, or 2, the carbon of R 1 bonded to the amine in the 4-position of the quinazoline is in (R)-configuration, R 2 is hydrogen, deuterium, fluorine, chlorine, methyl, methoxy, cyclopropyl, trifluoromethyl, or carboxylic amide, wherein each of methyl, methoxy and cyclopropyl is optionally substituted by one or more substituents independently selected from fluorine and nitrile, R 3 is hydrogen or deuterium, R 4 is hydrogen, deuterium, fluorine, methyl, carboxylic ester, carboxylic amide, nitrile, cyclopropyl, C 4-7 heterocycle, or 5-membered heteroaryl group, wherein each of methyl, cyclopropyl, C 4-7 heterocycle and 5-membered heteroaryl group is optionally substituted by one or more substituents independently selected from fluorine, hydroxyl, or methyl, and R 5 is hydrogen, deuterium, fluorine, chlorine, methyl, or methoxy, provided that at least one of R 2 , R 3 , R 4 and R 5 is not hydrogen. 2. The compound of claim 1 or a pharmaceutically acceptable salt or solvate thereof, wherein R 1 is of formula (II): wherein n is 0, 1, or 2. 3. The compound of claim 1 or a pharmaceutically acceptable salt or solvate thereof, wherein R 2 is fluorine, chlorine or methyl, and wherein methyl is optionally substituted by one or more substituents independently selected from fluorine and nitrile. 4. The compound of claim 1 or a pharmaceutically acceptable salt or solvate thereof, wherein R 2 is fluorine or chlorine. 5. The compound of claim 1 or a pharmaceutically acceptable salt or solvate thereof, wherein R 4 is fluorine or methyl, and wherein methyl is optionally substituted by one or more substituents independently selected from fluorine, hydroxyl, or methyl. 6. The compound of claim 1 , which is chosen from among compounds 1-34: Compound number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Antivirals · CPC title
with hetero atoms directly attached in positions 2 and 4 · CPC title
ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine · CPC title
for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics · CPC title
Immunosuppressants, e.g. drugs for graft rejection · CPC title
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