Disclosed are analogues of trimethine cyanine dyes which are useful for imparting fluorescent properties to target materials by covalent and non-covalent association. The compounds have the following general formula:
optionally substituted by groups R
2
-R
9
wherein groups R
6
, R
7
, R
8
and R
9
are attached to the rings containing X and Y or, optionally are attached to atoms of the Z
a
and Z
b
ring structures and groups R
1
-R
9
are chosen to provide desired solubility, reactivity and spectral properties to the fluorescent compounds;
A is selected from O, S and NR
11
where R
11
is the substituted amino radical:
where R′ is selected from hydrogen, a C
1-4
alkyl and aryl and R″ is selected from C
1-18
alkyl, aryl, heteroaryl, an acyl radical having from
2
-
7
carbon atoms, and a thiocarbamoyl radical;
Z
a
and Z
b
each represent a bond or the atoms necessary to complete one, two fused or three fused aromatic rings each ring having five or six atoms, selected from carbon atoms and, optionally, no more than two oxygen, nitrogen and sulphur atoms.
本发明涉及三甲基靛
氰染料的类似物,可通过共价和非共价结合用于赋予目标材料荧光性质。该化合物具有以下一般式:其中,基团R1-R9是为了提供所需的溶解度、反应性和光谱性质而选择的,可选择性地被基团R2-R9取代;A选自O、S和NR11,其中R11是取代
氨基基团:其中,R′选自氢、C1-4烷基和芳基,R″选自C1-18烷基、芳基、杂芳基、具有2-7个碳原子的酰基基团和
硫代
氨基基团;Za和Zb分别表示键或完成一个、两个或三个融合的芳香环所需的原子,每个环都有五个或六个原子,选自碳原子,并且可选择性地包含不超过两个氧、氮和
硫原子。