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1. (WO2018043579) PHOSPHA-RHODAMINE COMPOUND OR SALT THEREOF, AND FLUORESCENT DYE USING SAME

Pub. No.:    WO/2018/043579    International Application No.:    PCT/JP2017/031203
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Aug 31 01:59:59 CEST 2017
IPC: C09B 11/16
C07F 9/6568
C09K 11/06
G01N 21/64
G01N 33/533
Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
国立大学法人名古屋大学
Inventors: YAMAGUCHI, Shigehiro
山口 茂弘
TAKI, Masayasu
多喜 正泰
SATO, Yoshikatsu
佐藤 良勝
NAKA, Aiko
中 愛子
GRZYBOWSKI, Marek Grzegorz
ガージボウスキー マレク グジャゴッシュ
Title: PHOSPHA-RHODAMINE COMPOUND OR SALT THEREOF, AND FLUORESCENT DYE USING SAME
Abstract:
A phospha-rhodamine compound represented by general formula (1) (in the formula, R1 to R4 are the same or different and each represent a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted (hetero)aryl group; R5 represents a substituted or unsubstituted aryl group; R6 and R7 represent a hydrogen atom; R1 and R6 may be bonded to each other to form a substituted or unsubstituted alkylene group, and/or R3 and R7 may be bonded to each other to form a substituted or unsubstituted alkylene group; R8 represents a substituted or unsubstituted aryl group; and X represents a counterion) or salt thereof can provide a maximum fluorescence wavelength at a longer wavelength than conventional near-infrared fluorescent dyes and can do so without extending the conjugated system of the phospha-rhodamine skeleton.