申请人:——
公开号:US20040071640A1
公开(公告)日:2004-04-15
Novel benzoxazolyl benzene derivatives of formula (I):
1
wherein R
1
is hydrogen, C
1-20
-alkyl or C
2-20
-alkenyl; R
2
and R
3
are independently a group —C(R
4
,R
5
)C(R
6
)═C(R
7
,R
8
) (a) or a group —C(R
4′
,R
5′
)CH(R
6′
)CH(R
7′
,R
8′
) (b), wherein R
4
, R
5
, R
6
, R
7
, R
8
, R
4′
, R
5′
, R
6′
, R
7′
and R
8′
are independently, hydrogen, C
1-10
-alkyl or C
2-10
-alkenyl, or C
2-10
-alkyl or C
3-10
-alkenyl containing at least one oxygen atom interrupting the hydrocarbon chain; or wherein R
4
, R
5
, R
6
, R
4′
, R
5′
and R
6′
are hydrogen, C
1-10
-alkyl or C
2-10
-alkyl containing at least one oxygen atom interrupting the hydrocarbon chain, or alkyl substituted by silane or oligosiloxane moiety, and one of R
7
and R
8
or R
7′
and R
8′
is a silane or oligosiloxane moiety and the other one of R
7
and R
8
or R
7′
and R
8′
is hydrogen; and X is phenylene or naphthylene, or substituted phenylene or naphthylene for use as UV screening agents for protecting human skin or hair against radiation, and in UV screening compositions, particularly topical compositions for cosmentic or dermatological use.
式 (I) 的新型苯并恶唑苯衍生物:
1
其中 R
1
是氢、C
1-20
-烷基或 C
2-20
-烯基;R
2
和 R
3
独立地为一个基团-C(R
4
,R
5
)C(R
6
)═C(R
7
,R
8
)(a)或基团-C(R
4′
,R
5′
) CH(R
6′
)CH(R
7′
,R
8′
)(b),其中 R
4
, R
5
, R
6
, R
7
, R
8
, R
4′
, R
5′
, R
6′
, R
7′
和 R
8′
分别为氢、C
1-10
-烷基或 C
2-10
-烯基,或 C
2-10
-烷基或 C
3-10
-烯基,其中至少含有一个氧原子打断烃链;或其中 R
4
, R
5
, R
6
, R
4′
, R
5′
和 R
6′
为氢、C
1-10
-烷基或 C
2-10
-烷基,或被硅烷或低聚硅氧烷取代的烷基,以及 R
7
和 R
8
或 R
7′
和 R
8′
是硅烷或低聚硅氧烷分子,而R
7
和 R
8
或 R
7′
和 R
8′
是氢;X 是亚苯基或亚萘基,或取代的亚苯基或亚萘基,可用作紫外线屏蔽剂,保护人的皮肤或头发免受辐射,也可用于紫外线屏蔽组合物,特别是用于化妆品或皮肤病的外用组合物。