The present invention provides a hydroxynaphthalenedicarboxylic acid hydrazide dimer or a derivative thereof represented by formula (1):
wherein X
1
and X
2
are independently selected from the group consisting of carboxyl group, a group represented by formula (2) and a group represented by formula (3):
—CO—NH-Z (2)
—CO—NHNH
2
(3)
Y
1
and Y
2
are independently selected from the group consisting of carboxyl group, carbamoyl group, a group represented by formula (2), a group represented by formula (3) and a group represented by formula (4):
—CO—O-A (4)
provided that at least one of X
1
, X
2
, Y
1
and Y
2
is a group represented by formula (3).
本发明提供了一种由式(1)表示的羟基
萘二
羧酸肼二聚物或其衍
生物:其中X1和X2分别独立地选自羧基,由式(2)表示的基团和由式(3)表示的基团组成的群;—CO—NH-Z (2)—CO—NHNH2(3)Y1和Y2分别独立地选自羧基,
氨基甲酰基,由式(2)表示的基团,由式(3)表示的基团和由式(4)表示的基团组成的群;—CO—O-A (4)前提是X1、X2、Y1和Y2中至少有一个是由式(3)表示的基团。