SKIN WHITENING AGENT CONTAINING 3-HYDROXY-2-PYRONE

Title:

SKIN WHITENING AGENT CONTAINING 3-HYDROXY-2-PYRONE

Document Type and Number:

WIPO Patent Application WO/2012/098664

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a skin whitening agent, a tyrosinase activity inhibitor and a melanin production inhibitor, each of which contains, as an active ingredient, a compound that exhibits excellent solubility in various solvents. As a means for solving the problem, the present invention provides a skin whitening agent, a tyrosinase activity inhibitor and a melanin production inhibitor, each of which contains 3-hydroxy-2-pyrone.

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Inventors:

NAGAMINE KENICHI (JP)
KAWAGUCHI MASAKAZU (JP)
HIMONO AYAKA (JP)

Application Number:

PCT/JP2011/050986

Publication Date:

July 26, 2012

Filing Date:

January 20, 2011

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Assignee:

NICHIREI BIOSCIENCES INC (JP)
NAGAMINE KENICHI (JP)
KAWAGUCHI MASAKAZU (JP)
HIMONO AYAKA (JP)

International Classes:

A61K8/49; A61Q19/02

Domestic Patent References:

WO2008153784A2

2008-12-18

Foreign References:

JPH0347899A	1991-02-28
JPS5933207A	1984-02-23
JPS533538A	1978-01-13
JPH042562A	1992-01-07
JP2007246475A	2007-09-27

Other References:

See also references of EP 2666460A4
BIOSCIENCE, BIOTECHNOLOGY, AND BIOCHEMISTRY, vol. 69, no. 11, 2005, pages 2129 - 2137
N. MORITA ET AL., BULL. UNIV. OSAKA PREF., SER. B, vol. 41, 1989, pages 61 - 69

Attorney, Agent or Firm:

HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)

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