Crystals, amorphous substances or salts of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl) phenyl] terephthalamic acid
US8530654B2 · kind B2 · utility
2Cited by
4References
1Claims
0Family size
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Key dates
| Filing date | Feb 15, 2008 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Oct 1, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/84
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Crystals, amorphous substances, salts, and hydrates of a salt of methyl N-[3-(6,7-dimethoxy-2-methylaminoquinazolin-4-yl)phenyl]terephthalamic acid having PDE4 inhibitory action are provided. These compounds are useful for treating allergic diseases such as atopic dermatitis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.