L'oreal

Societe L'oreal Sa

Other

Loreal Sa

Jacqueline Dumats

Jean-Baptiste Galey

Michel Hocquaux

Lionel Breton

Quintino Gaetani

Jean Baptiste Galey

Alex M Junino

Maria Dalko

Olivier De Lacharriere

Remy Tuloup

Oliver De Lacharriere

Diamine alkylene diacetic or triacetic acid derivatives, preparation method, use in cosmetic and pharmaceutical compositions and compositions containing them

A process for the preparation of oxazoles of formula (II):

Process for the synthesis of trisubstituted oxazoles

Novel alkylenediaminediacetic acid or alkylenediaminetriacetic derivatives of formula (I):

The invention relates to the use of an ethylenediamine derivative as a substance P antagonist and/or as a local analgesic in, or for the preparation of, a cosmetic or dermatological composition for treating sensitive skin-types. The invention relates in particular to the use of this derivative for preventing and/or combating skin irritations and/or dartres and/or erythema and/or dysaesthesic sensations and/or sensations of inflammation and/or pruritus of the skin and/or the mucous membranes including the eyes. The invention also relates to a composition containing a product having an irritant side effect and this derivative, so as to reduce this irritant effect or even to remove it altogether.

Use of an ethylenediamine derivative in a cosmetic or dermatological

These compounds correspond to the following general formula: ##STR1## where: n is 0, 1, or 2,

Derivatives of N'N'-di(aralkyl)-N,N'-di(2-azaaralkyl)alkylene diamine

Ethylenediamine derivative in a cosmetic or dermatological composition,

Chelating agents for a transition metal, which exhibit the special feature of being photocleavable, that is containing a chelating functional group blocked by a photocleavable protecting group such that the chelating functional group is released only on exposure to luminous, specially ultraviolet, radiation, trap the transition metals released by the action of the luminous radiation, without exhibiting the side effects observed with conventional chelating agents. Compositions, especially cosmetic and/or dermatological ones, containing at least one such chelating agent are useful for protecting the skin, the mucosa, and/or the hair against ultraviolet radiation.

Photocleavable metal-chelating agents and compositions containing the

Use of N-arylmethylene, ethylenediaminetriacetates, N-arymethylene

N-arylmethylene ethylenediaminetriacetate, N-arylmethylene iminodiacetate or N,N'-diarylmethylene ethylenediaminediacetate type compounds and their use in combatting oxidative stress, and pharmaceutical and cosmetic compositions comprising said compounds. The invention also concerns a process for the preparation of said compounds.

Use of N-arylmethylene ethylenediaminetriacetates N-arylmethylene

Use of pyrimidine 3-oxide derivatives for slowing down hair loss and

The invention relates to compounds of formula: ##STR1## in which: R.sub.1 and R.sub.2 denote, independently of one another, a hydrogen atom or alternatively a carbamoyl group of formula: ##STR2## with R'.sub.3 denoting hydrogen or R.sub.3 ; an alkoxycarbonyl group of formula: ##STR3## or an acyl group of formula: ##STR4## in which formulae R.sub.3 denotes an alkyl, alkenyl or cycloalkyl radical; R.sub.3 can also denote an aryl or aralkyl radical; and

Halogenated pyrimidine 3-oxide derivatives, their use for the treatment

New 2,4-diaminopyrimidine 3-oxide derivatives and their use for the treatment and the prevention of hair loss. The compounds correspond to the formula: ##STR1## in which: R.sub.1 and R.sub.2 denote hydrogen or the groups of formula: ##STR2## with R'.sub.3 =H or R.sub.3, in which R.sub.3 denotes alkyl, alkenyl or cycloalkyl; R.sub.3 may also denote an aryl or aralkyl radical.

Growing community of inventors

Villepinte, France

Jacqueline Dumats