Abstract:
The present invention relates to compounds of the formula (I), where R1 to each, independently of one another, denote H, hydroxyl or alkoxy having 1 to 8 C atoms, R4 denotes alkyl having 1 to 4 C atoms, H, hydroxyl or alkoxy having 1 to 8 C atoms, R5 denotes H or hydroxyl, and R6 denotes H or alkyl having 1 to 18 C atoms, or salts thereof, but where all R1 to R4 together cannot be equal to H, to compositions, and to the preparation and use thereof.
Abstract:
The invention relates to a novel flavonoid derivative, to an extract comprising the flavonoid derivative, to the cosmetic and pharmaceutical use thereof, to preparations comprising the flavonoid derivative or extract, and to a process for the preparation of the flavonoid derivative or extract.
Abstract:
The invention relates to the use of compounds of the formula (I), where R1 and R2 may be identical or different and stand for H, OH, OCH3, CH3, CH2OH or CH2OCH3, R3 stands for H or straight-chain or branched C1- to C20-alkyl groups, R4 stands for H or OR8, R5 and R6 may be identical or different and are selected from —H, —OH, straight-chain or branched C1 to C20-alkyl groups, straight-chain or branched C3- to C20-alkenyl groups, straight-chain or branched C1- to C20-hydroxyalkyl groups, where the hydroxyl group may be bonded to a primary or secondary carbon atom of the chain, and furthermore the allyl chain may also be interrupted by oxygen, and R8 stands for H or straight-chain or branched C1- to C20-alkyl groups, with the proviso that R2 does not denote H if R1 denotes CH3, as self-tanning agents, and to compounds and the preparation thereof.
Abstract:
The invention relates to complexes of certain flavonoid derivatives, of the formula (1), where R1 and R2 are selected from H and OR11, where OR11 stands, independently of one another, for OH, straight-chain or branched C1- to C20-alkoxy groups, straight-chain or branched C3- to C20-alkenyloxy groups, straight-chain or branched C1- to C20-hydroxyalkoxy groups, where the hydroxyl group(s) may be bonded to a primary or secondary carbon atom in the chain and furthermore the alkyl chain may also be interrupted by oxygen, and/or C3- to C10-cycloalkoxy groups and/or C3- to C12-cycloalkenyloxy groups, where the rings may in each case also be bridged by —(CH2)n— groups, where n=1 to 3, and/or mono- and/or oligoglycosyl radicals, with the proviso that at least one radical from R1 and R2 stands for OR11, and R3 to R10 may be identical or different and stand, independently of one another, for radicals which are substantially inert with respect to the UV properties, to compositions which comprise such complexes, to corresponding processes for the preparation of the complexes or the compositions comprising the latter, and to the use thereof, in particular for the care, preservation or improvement of the general condition of the skin or hair and for light protection.
Abstract:
The invention relates to compounds of the formula I where R1 to R10 may be identical or different and are selected from H, OR11, straight-chain or branched C1- to C20-alkyl groups or hydroxyalkyl groups, straight-chain or branched C3- to C20-alkenyl groups and/or C3- to C12-cycloalkenyl groups, where the rings may each also be bridged by —(CH2)n— groups, where n=1 to 3, where all OR11, independently of one another, stand for OH, C1- to C20-alkoxy groups, C3- to C20-alkenyloxy groups, straight-chain or branched C1- to C20-hydroxyalkoxy groups and/or C3- to C10-cycloalkoxy groups and/or C3- to C12-cycloalkenyloxy groups, where the rings may each also be bridged by —(CH2)n— groups, where n=1 to 3, and/or mono- and/or oligoglycosyl radicals, CD stands for a cyclodextrin molecule, o stands for the number 1 and p stands for a number from the range 0.5 to 50, with the proviso that at least 2 radicals from R1 to R7 stand for OH and that at least 1 pair of adjacent —OH groups is present in the molecule.
Abstract:
The invention relates to the use of chromen-4-one derivatives of the formula I where R1 and R2 may be identical or different and are selected from H, —C(═O)—R7, —C(═O)—OR7, alkyl groups, alkenyl groups, hydroxyalkyl groups and/or cycloalkyl groups and/or cycloalkenyl groups, R3 is H or alkyl groups, R4 is H or OR8, R5 and R6 are selected from —H, —OH, alkyl groups, alkenyl groups and hydroxyalkyl groups, and R7 is H, alkyl groups, a polyhydroxyl compound, such as, preferably, an ascorbic acid radical or glycosidic radicals, and R8 is H or alkyl groups, where at least two of the substituents R1, R2 and R4-R6 are different from H or at least one substituent from R1 and R2 is —C(═O)—R7 or —C(═O)—OR7, for the care, preservation or improvement of the general state of the skin or hair.
Abstract:
The invention relates to a novel flavonoid derivative, to an extract comprising the flavonoid derivative, to the cosmetic and pharmaceutical use thereof, to preparations comprising the flavonoid derivative or extract, and to a process for the preparation of the flavonoid derivative or extract.
Abstract:
The present invention provides certain 6-hetarylalkyloxy pyrimidine derivatives of formula II ##STR1## wherein R is (i) a cyclic group having at least one 5- or 6-membered heterocyclic ring, optionally with a carbocyclic or heterocyclic ring fused thereto, the or each heterocyclic ring having at least one hetero atom chosen from O, N, or S, or a substituted derivative thereof; or (ii) phenyl or a substituted derivative thereof,R.sup.2 is selected from H, C.sub.1 -C.sub.5 alkyl, halogen or NH.sub.2,R.sup.4 and R.sup.5 which are the same or different are selected from H, NH.sub.2 or NO.sub.n where n=1 or 2, or R.sup.4 and R.sup.5 together with the pyrimidine ring form a 5- or 6-membered ring structure containing one or more heterocyclic atoms, and pharmaceutically acceptable salts thereof, exhibit the ability to deplete O.sup.6 -alkylguanine-DNA alkyltransferase (ATase) activity.
Abstract:
The present invention relates to the use of compounds of the formula (I) for the care, preservation or improvement of the general condition or appearance of the skin or hair, and to preparations comprising compounds of the formula (I).
Abstract:
The invention relates to the use of chromen-4-one derivatives of the formula I where R1 and R2 may be identical or different and are selected from H, —C(═O)—R7, —C(═O)—OR7, alkyl groups, alkenyl groups, hydroxyalkyl groups and/or cycloalkyl groups and/or cycloalkenyl groups, R3 is H or alkyl groups, R4 is H or OR8, R5 and R6 are selected from —H, —OH, alkyl groups, alkenyl groups and hydroxyalkyl groups, and R7 is H, alkyl groups, a polyhydroxyl compound, such as, preferably, an ascorbic acid radical or glycosidic radicals, and R8 is H or alkyl groups, where at least two of the substituents R1, R2 and R4-R6 are different from H or at least one substituent from R1 and R2 is —C(═O)—R7 or —C(═O)—OR7, for the care, preservation or improvement of the general state of the skin or hair.