Benzylidene compounds
    3.
    发明授权
    Benzylidene compounds 失效
    亚苄基化合物

    公开(公告)号:US4797493A

    公开(公告)日:1989-01-10

    申请号:US38364

    申请日:1987-04-14

    摘要: Disclosed herein are benzylidene compounds represented by the formula (I): ##STR1## wherein A represents ##STR2## (wherein B represents hydrogen atom or an acetyl group, W represents hydrogen atom or --CH.sub.2 --CH.sub.2 --CO--O--R, X.sup.1, X.sup.2 and X.sup.3 represent independently hydrogen atom, a hydroxyl group or a methoxyl group (two or three of them may be the same or all of them may be different), Y represents oxygen atom or imino group (--NH--), Z represents a methyl group or a phenyl group, and R represents a straight chain alkyl group having 1 to 18 carbon atoms, or branched or cyclic alkyl group having 3 to 18 carbon atoms, provided that when A is ##STR3## R is not an alkyl group having 1 to 2 carbon atoms, and when A is ##STR4## and X.sup.1, X.sup.2 and X.sup.3 are hydrogen atom, R is not an alkyl group having 1 to 2 carbon atoms), a cosmetic composition containing the same and an ultraviolet absorber comprising the same.

    摘要翻译: 本文公开的是由式(I)表示的亚苄基化合物:其中A表示(其中B表示氢原子或乙酰基,W表示氢原子或-CH 2 -CH 2 -CO-OR) X1,X2和X3独立地表示氢原子,羟基或甲氧基(其中两个或三个可以相同或全部可以不同),Y表示氧原子或亚氨基(-NH-),Z 表示甲基或苯基,R表示碳原子数1〜18的直链烷基或碳原子数3〜18的支链状或环状烷基,条件是当A不是烷基时, 具有1至2个碳原子的基团,当A为X 1且X 1,X 2和X 3为氢原子时,R不为具有1至2个碳原子的烷基),含有该烷基的化妆品组合物和包含 一样。