| 摘要 |
<p>PROBLEM Provided is a novel cyanine dye derivative having high fluorescence intensity in a short wavelength region, a structure where a pyrazole skeleton and an indole skeleton are bound to a polymethine chain, and also a controllable migration velocity by further introducing a quaternary ammonium cation into a molecule having said structure. SOLUTION The present invention is the invention of a compound represented by the general formula [1] or a salt thereof:
[wherein R 1 to R 6 each independently represent an alkyl group having, as a substituent, a group represented by the general formula [101]:
(wherein R 101 to R 104 each independently represent a hydrogen atom or an alkyl group of C 1 to C 3 and m represents an integer from 2 to 6, and two or three of R 102 to R 104 together with a nitrogen atom to which they are bound may form a heterocyclic ammonium cation); or a group derived from a carboxylic acid represented by the general formula [2] which may have an amide bond:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-COOR 12 €ƒ€ƒ€ƒ€ƒ€ƒ[2]
(wherein R 12 represents a hydrogen atom, an alkyl group of C 1 to C 10 , an alkali metal atom, an organic ammonium ion, an ammonium ion or anion); or an alkyl group which may have, as a substituent, a group derived from a sulfonic acid represented by the general formula [3] which may have an amide bond:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-SO 3 R 13 €ƒ€ƒ€ƒ€ƒ€ƒ[3]
(wherein R 13 represents a hydrogen atom, an alkali metal atom, an organic ammonium ion, an ammonium ion or anion); R 7 to R 10 each independently represent an alkyl group, an alkynyl group, an aryl group, an alkoxy group, an aryloxy group, an alkylsulfonyl group, an arylsulfonyl group, an amino group, a group derived from a carboxylic acid represented by the general formula [2], a group derived from a sulfonic acid represented by the general formula [3], a halogen atom, a hydrogen atom, a hydroxyl group, a cyano group or a nitro group; R 11 represents a hydrogen atom, an alkyl group, an alkynyl group or an aryl group, and n represents an integer from 0 to 3, and at least one of R 1 to R 6 is an alkyl group having, as a substituent, a group represented by the general formula [101]].</p> |
