Title:
【発明の名称】コウジ酸誘導体
Document Type and Number:
Japanese Patent JP2915810
Kind Code:
B2
Abstract:
Disclosed herein is novel kojic acid derivatives represented by the following formula (I): (I) wherein, R1 is a hydrogen atom or hydroxyl group; and R2 is a hydroxyl group, having a strong activity of inhibiting tyrosinase, which is involved in a melanin formation. The compounds of the present invention shows a stronger tyrosinase-inhibiting and radical scavenging activities, and has a low side effects to the human skin.
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Inventors:
YANA SHOBO
KO SOGEN
RI KIWA
RI HEIKON
CHO TOITSU
KO SOGEN
RI KIWA
RI HEIKON
CHO TOITSU
Application Number:
JP28230894A
Publication Date:
July 05, 1999
Filing Date:
November 16, 1994
Export Citation:
Assignee:
TAIHEIYO KK
International Classes:
A61K8/00; A61K8/37; A61K8/49; A61Q19/00; A61Q19/02; C07D309/40; C12N9/99; (IPC1-7): C07D309/40
Domestic Patent References:
| JP3223275A | ||||
| JP5933207A |
Attorney, Agent or Firm:
Katsuo Naruse (2 outside)