Polysubstituted derivatives of naphthalene, their process of preparation and their application in the cosmetic and pharmaceutical fields

摘要

New polysubstituted derivatives of naphtalene.P PThese derivatives correspond to the following formula: ##STR1## in which: R.sub. 1 to R.sub.4 is H or CH.sub.3PPR.sub.5 isP P(i) ##STR2## (ii) --C.tbd.N (iii) ##STR3## or (iv) the radical: 2- oxazolinylPPm is 0 or 1PP R.sub.8 is H, alkyl, OR.sub.11, R.sub.11 being H, alkyl or ##STR4## R.sub. 13 being alkyl or aryl or R.sub.8 is ##STR5## 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, ##STR6## --OR.sub.14, R.sub.14 being H, alkyl, mono or polyhydroxyalkyl, aryl or aralkyl a rest of a sugar or represents ##STR7## being 0, 1, 2, or 3 R.sub.6 represents a hydrogen atom or a lower alkyl radical,PPR.sub.7 represents H, alkyl, halogen, hydroxyl, sulfydryl, alkoxy, alkylthio, acyloxy, acylthio, acylamino or primary, secondary or tertiary amino and the salts of the said compounds. These compounds find an application in the cosmetic and pharmaceutical fields.