Pyranone compounds and skin-lightening cosmetic preparations or local demelanizing agents containing the same
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United States of America Patent
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Oct 8, 1985
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N/A
app pub date -
Mar 17, 1982
filing date -
Mar 17, 1982
priority date (Note) -
Expired
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Abstract
Novel acyl compounds 3-acyloxy-4(H)-pyran-4-ones were obtained by reacting 3-hydroxy-4(H)-pyran-4-one with acyl halides. The acyl compounds and their starting compound exhibit a skin-lightening effect on the skin and are preferably used as an active constituent in skin-lightening cosmetic preparations or local demelanizing agents.
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