Abstract:
A process for preparing an optically active 1-(4-nitrophenyl)-3-pyrrolidinol derivative corresponding to formula (I) below: para-Phenylenediamine derivatives substituted by a chiral pyrrolidinyl group, of formula (II), and their addition salts: A dyeing composition comprising a para-phenylenediamine derivative of formula (II). A method of oxidation-dyeing keratin fibers which employs said composition. Multicompartment devices in which a first compartment contains the said dyeing composition and a second compartment contains an oxidizing agent.
Abstract:
Compounds represented by the following formula I: ##STR1## in which: R.sup.1 to R.sup.5 can have various meanings of which alkyl, substituted or non-substituted aryl, and m is equal to 0 or 1, X is selected from (CR.sup.6 R.sup.7).sub.n in which n=0 or 1, and CO are disclosed. These compounds are useful as anti-tumor drugs, especially with pro-oxidizing activity.
Abstract translation:由下式I表示的化合物:其中:R 1至R 5可以具有其中烷基,取代或未取代的芳基,m等于0或1的各种含义,X选自(CR 6 R 7)n,其中n = 0或1,并公开CO。 这些化合物可用作抗肿瘤药物,特别是具有促氧化活性。
Abstract:
A process for synthesizing para-phenylenediamine derivative compounds containing a pyrolidinyl group, and substituted by a nitrogenous radical, wherein the para-phenylenediamine derivative compounds are chosen from those of formula (I): Intermediates containing a pyrrolidinyl group bearing a nitrogenous radical are also disclosed herein.
Abstract:
The invention concerns novel silicon compounds derived from ascorbic acid consisting of a silicon-containing chain or of silanes, comprising at least a radical A of formula (I) wherein: at least one of the radicals L is a divalent radical for fixing A on the silicon chain. The invention further concerns methods for preparing said compounds, compositions, in particular cosmetic or pharmaceutical, containing them, and their use as antioxidant and/or anti-free radical agent, particularly for treating oxidant stress, for treating the effects of exposure to the sun and for preventing ageing.
Abstract:
Compounds represented by the following formula I: ##STR1## in which: R.sup.1 to R.sup.5 can have various meanings of which alkyl, substituted or non-substituted aryl, and m is equal to 0 or 1, X is selected from (CR.sup.6 R.sup.7).sub.n in which n=0 or 1, and CO are disclosed. These compounds are useful as anti-tumor drugs, especially with pro-oxidizing activity.
Abstract translation:由下式I表示的化合物:其中:R 1至R 5可以具有其中烷基,取代或未取代的芳基,m等于0或1的各种含义,X选自(CR 6 R 7)n,其中n = 0或1,并公开CO。 这些化合物可用作抗肿瘤药物,特别是具有促氧化活性。
Abstract:
The process for preparing 2-hydroxyphenyl alkenyl benzotriazole compounds and the process for preparing siloxane compounds containing 2-hydroxyphenyl benzotriazole function are disclosed.
Abstract:
Process for synthesizing para-phenylenediamine derivative compounds containing a pyrolidinyl group and substituted by a nitrogenous radical, corresponding to the formula (I) below: Intermediates containing a pyrrolidinyl group bearing a nitrogenous radical.
Abstract:
Compounds represented by the following formula I: ##STR1## in which: R.sup.1 to R.sup.5 can have various meanings of which alkyl, substituted or non-substituted aryl, and m is equal to 0 or 1, X is selected from (CR.sup.6 R.sup.7).sub.n in which n=0 or 1, and CO are disclosed. These compounds are useful as anti-tumor drugs, especially with pro-oxidizing activity.
Abstract translation:由下式I表示的化合物:其中:R 1至R 5可以具有其中烷基,取代或未取代的芳基,m等于0或1的各种含义,X选自(CR 6 R 7)n,其中n = 0或1,并公开CO。 这些化合物可用作抗肿瘤药物,特别是具有促氧化活性。
Abstract:
The invention relates to 2-mercaptoimidazole derivatives substituted in the 4(or 5)-position.These 2-mercaptoimidazole derivatives are of the general formula (I) below: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.5, R.sub.7 and R.sub.8 are hydrogen, a lower alkyl, an aralkyl or a substituted aralkyl, wherein at least one of R.sub.1 and R.sub.2 is hydrogen;R.sub.3 is (CH.sub.2).sub.n COR.sub.4, --(CH.sub.2).sub.n N.sup.+ (R.sub.5 R.sub.6 R.sub.7).X.sup.- or --CH.sub.2 CH(COR.sub.4)N.sup.+ (R.sub.5 R.sub.6 R.sub.7).X.sup.- ;R.sub.4 is OR.sub.8, --NHR.sub.5, --.alpha.-amino acid,--NHCH.sub.2 CH.sub.2 SO.sub.3.sup.-.Y.sup.+, --NHCH.sub.2 CH.sub.2 CO.sub.2.sup.- Y.sup.+, --OCH.sub.2 CH.sub.2 N.sup.+ (CH.sub.3).sub.3.X.sup.- ; ##STR2## n=1 or 2; X.sup.31 is an anion of an acid acceptable in cosmetics, pharmaceuticals or foodstuffs; andY.sup.+ is a cation of a base acceptable in cosmetics, pharmaceuticals or foodstuffs.These compounds are valuable as antioxidants and as active principles of pharmaceutical, cosmetic or food compositions with antioxidant activity.
Abstract:
The process for preparing 2-hydroxyphenyl alkenyl benzotriazole compounds and the process for preparing siloxane compounds containing 2-hydroxyphenyl benzotriazole function are disclosed.