2-ethoxymethyl-5-hydroxy-›-pyrone and...

Details 2-ethoxymethyl-5-hydroxy-›-pyrone and... 2-ethoxymethyl-5-hydroxy-›-pyrone and...

C - Chemistry, Metallurgy

07

D

167/244, 167/310

C07D 309/40 (2006.01) A61K 31/35 (2006.01) A61K 7/48 (1990.01)

Patent

CA 2024727

ABSTRACT OF THE DISCLOSURE Disclosed are 2-ethoxymethyl-5-hydroxy-.gamma.-pyrone and an melanogenesis-inhibiting endermic preparation for external application containing the compound as an active ingredient. The endermic preparation is almost non-toxic and has an extremely high melanogenesis- inhibiting activity. - 14 -

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