Polysubstituted derivatives of naphtalene, their process of preparation and their application in the cosmetic and pharmaceutical fields
US5041639A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Sep 15, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/008
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
New polysubstituted derivatives of naphthalene. These derivatives correspond to the following formula: ##STR1## in which: R.sub.1 to R.sub.4 is H or CH.sub.3 PA1 R.sub.5 is ##STR2## or (iv) the radical: 2-oxazolinyl m is 0 or 1 PA1 R.sub.8.sbsb.r is H, alkyl, OR.sub.11, R.sub.11 being H, alkyl or ##STR3## R.sub.13 being alkyl or aryl or R.sub.8 is ##STR4## when m=1, r' and r" representing H, alkyl mono or polyhydroxyalkyl, aryl or a heterocycle when they are taken together, R.sub.9 is H or alkyl, R.sub.10 is H, alkyl and the acetals of the said compounds ##STR5## --OR.sub.14, R.sub.14 being H, alkyl, mono or polyhydroxyalkyl, aryl or aralkyl a rest of a sugar or represents ##STR6## being 0, 1, 2 or 3 R.sub.6 represents a hydrogen atom or a lower alkyl radical, PA1 R.sub.7 represents H, alkyl, halogen, hydroxyl, sulfydryl, alkoxy, alkylthio, acyloxy, acylthio, acylamino or primary, secondari or tertiary amino and the salts of the said compounds. These compounds find an application in the cosmetic and pharmaceutical fields.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.