[EN] 6,8-DISUBSTITUTED-9-(HETEROCYCLYL)PURINES, COMPOSITIONS CONTAINING THESE DERIVATIVES AND THEIR USE IN COSMETIC AND MEDICINAL APPLICATIONS<br/>[FR] 9-(HÉTÉROCYCLYL)PURINES 6,8-DISUBSTITUÉES, COMPOSITIONS CONTENANT CES DÉRIVÉS ET LEUR UTILISATION DANS DES APPLICATIONS COSMÉTIQUES ET MÉDICINALES
申请人:USTAV EX BOTAN AV CR V V I
公开号:WO2016095880A1
公开(公告)日:2016-06-23
6,8-Disubstituted-9-(heterocyclyl) purines which can be used in pharmaceutical and cosmetic compositions and/or 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, as well as well as other activities which are especially useful in pharmaceutical and cosmetic applications.
Naturallyoccurringcytokinins are adenine-based plant hormones. Although, the effect of various substituents at positions N1, C2, N3, N6, N7, or N9 on the biological activity of cytokinins has been studied, the C8-substituted compounds have received little attention. Here, we report the synthesis and in vitro biological testing of thirty-one cytokinin derivatives substituted at the C8 position of
6,9-Disubstituted Purine Derivatives and Their Use as Cosmetics and Cosmetic Compositions
申请人:Szucova Lucie
公开号:US20090170879A1
公开(公告)日:2009-07-02
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.
Phosphorylation of allylic hydroxy groups via phosphite intermediates
作者:B. R. Shadid、H. C. van der Plas、E. de Vroom、G. A. van der Marel、J. H. van Boom
DOI:10.1002/recl.19871060907
日期:——
Phosphitylation of an allylic hydroxygroup with salicylchlorophosphite gives an allyl 1-H-phosphonate mono-ester, which can be readily oxidized to the corresponding phosphate mono-ester. Application of this phosphite-triester approach was further demonstrated in the preparation of 1-H-phosphonate and phosphate mono-esters of N-protected trans-zeatin.
6,9-disubstituted purine derivatives and their use as cosmetics and cosmetic compositions
申请人:Institute of Experimental Botany, Academy of Sciences of the Czech Republic
公开号:US07960397B2
公开(公告)日:2011-06-14
Certain 6,9-disubstituted purine derivatives and their pharmaceutically acceptable salts of the following 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 application to mammalian cells, and especially human skin cells, in order to improve the cosmetic appearance of the mammalian cells, especially human skin.