申请人:ROHTO Pharmaceutical Co., Ltd.
公开号:US20150065728A1
公开(公告)日:2015-03-05
A novel compound which has excellent ultraviolet-absorbing function (especially UVA absorbing function) and excellent hydrophilicity. A benzylidene azolidine derivative represented by structural formula (I) or a salt thereof. In structural formula (I), n represents an integer of 1-5; A
1
represents O, S or N-A
4
; and each of A
2
, A
3
and A
4
independently represents a hydrogen atom, an alkyl group which may be substituted by a hydroxyl group and has 1-8 carbon atoms, or the like (provided that at least one of A
2
, A
3
and A
4
contains one or more hydroxyl groups). In this connection, when n is an integer of 2-5, the plurality of A
3
O— moieties may be the same as or different.
一种新型化合物,具有优异的紫外吸收功能(特别是UVA吸收功能)和优异的亲水性。该化合物为结构式(I)所表示的苯甲酰亚氮杂环衍生物或其盐。在结构式(I)中,n表示1-5的整数;A1表示O、S或N-A4;每个A2、A3和A4独立地表示氢原子、烷基(其可以被羟基取代,并具有1-8个碳原子)或类似物(前提是A2、A3和A4中至少有一个含有一个或多个羟基)。在此情况下,当n为2-5的整数时,多个A3O-基团可以相同或不同。