6,9-disubstituted purine derivatives and their use as cosmetics and cosmetic compositions
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United States of America Patent
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Jun 14, 2011
Grant Date -
Jul 2, 2009
app pub date -
Dec 28, 2007
filing date -
Dec 28, 2007
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Abstract
Certain 6,9-disubstituted purine derivatives and their pharmaceutically acceptable salts of the following general formulaare 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.
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