Amides of paramethoxycinnamic and utilization thereof as solar filters
US4931471A · kind A · utility
7Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Oct 3, 1988 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Oct 3, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D295/185
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Derivatives with amide function obtained by reaction between derivatives of linear, branched or cyclic amines having an amino acid or peptidic structure and paramethoxycinnamic acid or urocanic acid. Application of said compounds as specific solar filter, absorbing about 310 nm and avoiding erythematous phenomena during exposures to the sun and as active principles of dermo-pharmaceutical and cosmetological preparations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.