Abstract: A para-topolin mesylate salt and its crystalline form is disclosed. Cosmetic and therapeutic applications, and compositions containing this compound, are also disclosed. Mesylate salt of para-topolin has a wide range of biological activities, including antioxidative, anti-inflammatory, anti-senescent and anti-aging while showing low toxicity and excellent solubility.

Abstract: Heterocyclic nitrogen-containing purine derivatives and their use in the medicinal applications and compositions containing these derivatives is disclosed. A new generation of compounds possessing selective antineurodegenerative properties on neuronal cells and tissues and that can be particularly used in the treatment and prophylaxis of neurodegenerative disease, particularly in the treatment and prophylaxis of Parkinson's disease is also disclosed.

Abstract: The invention relates to N2,N6-disubstituted-9-(2-oxacycloalkyl)-9H-purine-2, 6-diamine derivatives and their use as drugs and cosmetics. The compounds of the present invention exhibit a number of biological activities associated with oxidative stress inhibition, especially anti-aging, anti-inflammatory and anti-neurodegenerative biological activities. The invention also relates to cosmetic and pharmaceutical compositions containing such derivatives as active agents.

Abstract: The invention relates to substituted 6-anilino-9-heterocyclylpurine derivatives of formula I wherein R denotes one to five substituents independently selected from the group hydrogen, halogen, hydroxy, amino, alkyloxy and alkyl group, R2 is selected from the group comprising amino, halogen, hydroxy, thio, and alkylthio group, Cyc is five- or six-membered heterocyclic ring containing one oxygen atom. The derivatives are useful for inhibition of plant stress.

Abstract: 6-aryl-9-glycosidpurines of general formula I and pharmaceutically acceptable salts thereof with alkali metals, ammonia, amines, or addition salts with acids, wherein Gly represents ?-D-arabinofuranosyl or ?-D-2?-deoxyribofuranosyl, Ar represents benzyl or furfuryl, each of which can be unsubstituted or substituted by one or more, preferably one to three, substituents selected from the group comprising hydroxyl, alkyl, halogen, alkoxy, amino, mercapto, carboxyl, cyano, amido, sulfo, sulfamido, acyl, acylamino, acyloxy, alkylamino, dialkylamino, alkylmercapto, trifluoromethyl, trifluoromethoxy, for use for regulation, in particular inhibition, of aging in plants in vivo or plant cells in vitro, and for regulation of growth and development of plants in vivo, plant tissues, plant organs and plant cells in vitro.

Abstract: 6-aryl-9-glycosidpurines of general formula I and pharmaceutically acceptable salts thereof with alkali metals, ammonia, amines, or addition salts with acids, wherein Gly represents ?-D-arabinofuranosyl or ?-D-2?-deoxyribofuranosyl, Ar represents benzyl or furfuryl, each of which can be unsubstituted or substituted by one or more, preferably one to three, substituents selected from the group comprising hydroxyl, alkyl, halogen, alkoxy, amino, mercapto, carboxyl, cyano, amido, sulfo, sulfamido, acyl, acylamino, acyloxy, alkylamino, dialkylamino, alkylmercapto, trifluoromethyl, trifluoromethoxy, for use as antisenescent and UV protective compounds in animals.

Abstract: 6,8-Disubstituted-9-(heterocyclyl)purines for use in pharmaceutical and cosmetic compositions and applications are provided. These 6,8-disubstituted-9-(heterocyclyl)purines have a wide range of biological activities, including for example antioxidant, anti-inflammatory, anti-senescent, anti-aging, as well as well as other activities which are especially useful in pharmaceutical and cosmetic applications. Compositions may include additional excipients and auxiliary substances. Methods of treatment of animals, mammals, plants, cells, yeast, and cells in tissue culture are also disclosed.

Abstract: Substituted 1,2,3-thiadiazol-5yl-urea derivatives, their use as anti-senescence and anti-stress factors of plant cells, organs and the whole plant, and preparations containing these derivatives.

Abstract: The invention relates to substitution derivatives of N6-benzyladenosine-5?-monophosphate of the general formula I, wherein (R)n represents 1 to 4 substituents (n is in the range 1-4), which can be the same or different, and R is selected from the group comprising C1 to C8 alkyl, C1 to C8 alkoxy, amino, halogen, hydroxy, mercapto and nitro groups, and the pharmaceutically acceptable salts thereof. This invention also relates to methods of their preparation, their use as medicaments and in other biotechnological applications, and a therapeutic composition containing these derivatives.

Abstract: The invention relates to new substituted 6-(2-aminobenzylamino)purines, represented by the general formula I, which can be used in CDK inhibition, in particular, in the treatment of viral infections and diseases involving cell proliferation. The invention further includes pharmaceutical preparations containing substituted 6-(2-aminobenzylamino)purines.

Abstract: Certain 6,9-disubstituted purine derivatives and their pharmaceutically acceptable salts of the general formula are provided wherein R6 and R9 are as defined in the specification. These 6,9-disubstituted purine derivatives and their pharmaceutically acceptable salts are useful in compositions for treating mammalian cells, and especially human skin cells, in order to ameliorate the adverse effects of aging, treat skin disease states, treat immunological responses resulting from or associated with inflammation, and the like.

Abstract: Novel heterocyclic derivatives based on N6-substituted adenine, having anticancer, mitotic, immunosuppressive and antisenescent properties for plant, animal and human cells and methods of their preparation. Included are also pharmaceutical compositions, cosmetic preparations and growth regulators, which contain these derivatives as active compound and the use of these derivatives for the preparation of drugs, cosmetic preparations, in biotechnological processes, in cosmetics and in agriculture.

Abstract: The invention relates to substituted 6-(2-hydroxybenzylamino)purines of general formula I, to their activity as cyclin-dependent kinases 2, 5, 7 and 9 inhibitors and to their use as medicaments, particularly in the treatment of disorders involving cell proliferation or inflammation. The invention further includes pharmaceutical compositions containing the substituted 6-(2-hydroxybenzylamino)purines.

Abstract: Substitution derivatives of N6-benzyladenosine-5?-monophosphate of the general formula I, wherein (R)n represents 1 to 4 substituents (n is in the range 1-4), which can be the same or different, and R is selected from the group comprising C1 to C8 alkyl, C1 to C8 alkoxy, amino, halogen, hydroxy, mercapto and nitro groups, and the pharmaceutically acceptable salts thereof. A Method for their preparation, their use as medicaments and in other applications, and a therapeutic composition containing these derivatives is also disclosed.

Abstract: The invention relates to substituted 6-anilinopurine derivatives of the general formula I, wherein R denotes one to five substituents independently selected from the group consisting of hydrogen, halogen, hydroxyl, amino, alkyloxy and alkyl group, and R2 denotes amino, halogen, nitro, thio, alkylthio or alkyl group for use as inhibitors of cytokinin oxidase/dehydrogenase. The invention also relates to the compositions containing these derivatives.

Abstract: The invention relates to substituted 6-(2-hydroxybenzylamino)purines of general formula I, to their activity as cyclin-dependent kinases 2, 5, 7 and 9 inhibitors and to their use as medicaments, particularly in the treatment of disorders involving cell proliferation or inflammation. The invention further includes pharmaceutical compositions containing the substituted 6-(2-hydroxybenzylamino)purines.

Abstract: The invention relates to 2-substituted-6-(substituted benzylamino)purine riboside derivatives of the general formula I. These compounds possess antiapoptotic, anti-inflammatory and differentiating activities. The invention relates also to the compositions, which contain these derivatives as active ingredients.

Abstract: The invention concerns novel substitution derivatives of N6-benzyladenosine having anticancer, mitotic, immunosuppressive and antisenescent properties for plant, animal and human cells. This invention also relates to the methods of preparation of these N6-benzyladenosine derivatives and their use as drugs, cosmetic preparations and growth regulators comprising these derivatives as active compound and use of these derivatives for preparation of pharmaceutical compositions, in biotechnological processes, in cosmetics and in agriculture.

Abstract: The invention relates to new substituted 6-(2-aminobenzylamino)purines, represented by the general formula I, which can be used in CDK inhibition, in particular, in the treatment of viral infections and diseases involving cell proliferation. The invention further includes pharmaceutical preparations containing substituted 6-(2-aminobenzylamino)purines.

Abstract: Certain 6,9-disubstituted purine derivatives and their pharmaceutically acceptable salts are provided. These 6,9-disubstituted purine derivatives and their pharmaceutically acceptable salts are useful in compositions for treating mammalian cells, and especially human skin cells, in order to ameliorate the adverse effects of aging, treat skin disease states, treat immunological responses resulting from or associated with inflammation, and the like.