[EN] ULTRAVIOLET ABSORBERS, AND PHARMACEUTICAL COMPOSITIONS AND COSMETICS CONTAINING PYRIMIDINE COMPOUNDS FOR UV PROTECTION<br/>[FR] ABSORBEURS ULTRAVIOLETS ET COMPOSITIONS PHARMACEUTIQUES ET PRODUITS COSMÉTIQUES CONTENANT DES COMPOSÉS PYRIDINES POUR PROTECTION CONTRE LES UV
申请人:AWAYA AKIRA
公开号:WO2010087527A1
公开(公告)日:2010-08-05
The present invention provides new ultraviolet absorbers, and new pharmaceutical compositions and cosmetics containing pyrimidine compounds for UV protection and melanogenesis inhibition. The present invention also provides methods for making those agents. Those pyrimidine compounds are 2-substituted-6-alkyl-5-oxo- 5,6-dihydro(7H)pyrro[3,4~d]pyrimidine compounds, and 2-substituted-7-alkyl-6~oxo- 5,6-dihydro(7H)pyrro[2,3-d]pyrimidine compounds and salts thereof, represented by the following formula (1 ) or formula (2), wherein R1 to R8 independently represent a hydrogen atom, a lower alkyl (especially C1 -C7 alkyl) group, CH3OCH2CH2-, -CH2COR9(R9=CH3, C2H5. NH2), - CH2OCOC2H5; and X represents -N (RI0) - (R10=CH3, C2H5, Ph,-CH2Ph,-CH (Ph)2,-COCH3, -COOCH3,-SO2CH3),-CH2-,-CH (CH3) -,-CH (C2H5) -,-O-,-S- in which ph stands for a phenyl group.