A cyanine dye having the formula
1
wherein R
1
-R
8
are each independently selected from a group consisting of hydrogen, C
1
-C
6
alkyl group, and C
0
-C
4
alkyl group having a hydrophilic substituent thereon. R
11
and R
12
are chosen to include a free or protected thiol, amine or hydroxyl substituent capable of reacting with a target molecule through a nucleophilic displacement mechanism. The dye is useful in labeling a variety of target molecules. Processes are described for synthesizing suitable heterocyclic and indole derivatives as precursors for the aforementioned cyanine dyes.
一种靛烯
染料,其
化学式为1,其中R1-R8各自独立选择自氢、C1-C6烷基和具有亲
水性取代基的C0-C4烷基。R11和R12被选择为包括具有自由或保护的巯基、
氨基或羟基取代基,能够通过亲核置换机制与目标分子反应。该
染料可用于标记各种目标分子。还描述了合成适合的杂环和
吲哚衍
生物作为上述靛烯
染料的前体的过程。