申请人:——
公开号:US20040247551A1
公开(公告)日:2004-12-09
An external preparation characterized by comprising, as selected from gallic acid derivatives of the following formula (I),
1
wherein R
1
represents a hydrogen atom, an alkali metal, an alkaline earth metal, an ammonium salt, or an alkyl or alkenyl group having from 1 to 18 carbon atoms and R
2
, R
3
, and R
4
independently represent a hydrogen atom, an hydroxyl group, an alkoxy group having from 1 to 18 carbon atoms, a polyoxyethylene group, a polyoxypropylene group, or a residue of a monosaccharide, a disaccharide, or an oligosaccharide; 90 wt % or over of one or more gallic acid derivatives (A) wherein two of R
2
, R
3
, and R
4
in the formula (I) independently represent a residue of a monosaccharide, disaccharide, or oligosaccharide and from 0.001 wt % to less than 10 wt % of one or more gallic acid derivatives (B) wherein one of R
2
, R
3
, and R
4
represents a residue of a monosaccharide, disaccharide, or oligosaccharide, each based on the total content of the gallic acid derivatives.
一种外用制剂,其特征在于选自下式(I)的没食子酸衍生物、
1
其中 R
1
代表氢原子、碱金属、碱土金属、铵盐或具有 1 至 18 个碳原子的烷基或烯基,R
2
, R
3
和 R
4
独立地代表氢原子、羟基、具有 1 至 18 个碳原子的烷氧基、聚氧乙烯基、聚氧丙烯基、或单糖、二糖或寡糖的残基; 90 wt % 或以上的一种或多种没食子酸衍生物 (A),其中两个 R
2
, R
3
和 R
4
在式 (I) 中独立地代表单糖、二糖或寡糖的残基,以及 0.001 重量%至小于 10 重量%的一种或多种没食子酸衍生物 (B) 其中 R
2
, R
3
和 R
4
代表单糖、双糖或寡糖的残留物,各自以没食子酸衍生物的总含量为基准。