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    • 9. 发明专利
    • CYANINE COLORING MATTER
    • JP2000129151A
    • 2000-05-09
    • JP27967199
    • 1999-09-30
    • AGFA GEVAERT AG
    • MISFELDT MICHAEL DR
    • C07D413/14C07D417/14C07D421/14C09B23/00C09B23/02G03C1/005G03C1/14G03C1/29
    • PROBLEM TO BE SOLVED: To obtain the subject coloring matter containing benzoxazole and having at least one indolyl substituent group, excellent in especially a high spectral sensitivity and simultaneously excellent long-term preservation stability especially under tropical conditions and useful as a color photographic silver halide material, etc. SOLUTION: This coloring matter is represented by formula I [R1 to R6 are each a substituent group, with the proviso that at least one of the residues R1 to R3 is indolyl residue; X is O, S, Se or the like; R7 and R8 are each an alkyl, a sulfoalkyl, a carboxyalkyl or the like; Y is NH or N; (n) is 1, 3, 5 or 7; L is a (substituted) methine; M is a counterion, as necessary, required in order to equalize charges], e.g. a compound represented by formula II. Furthermore, the coloring matter is obtained by dissolving a compound represented by formula III in m-cresol, combining the resultant solution with triethyl orthopropionate, carrying out a reaction at 100 deg.C for about 15 min, then cooling the reactional mixture and subsequently apportioning the compound represented by formula III together with triethylamine.