Triaryl or diarylpyridyl methanes
US4152341A · kind A · utility
2Cited by
8References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1978 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | May 19, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C205/61
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Pharmaceutical compositions, containing a 4,4'-dihydroxy-3,3'-triphenylmethanedicarboxylic acid (or an oxidized derivative) as active ingredient, are described and are prepared conventionally in a form suitable for topical administration e.g. ointment. The compositions are useful for the treatment of inflammatory diseases and inflammatory conditions of the skin. Many of the active ingredients are novel compounds. A representative novel active ingredient is 4"-cyano-4,4'-dihydroxy-5,5'-dimethyl-3,3'-triphenylmethanedicarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.