| 摘要 |
PROBLEM TO BE SOLVED: To provide a compound that is useful as an intermediate for fluorescent dyes, and a method of producing the same. SOLUTION: The compound is 3H-pyrollo[2,3-b]pyridine represented by general formula (I) (wherein V<1> , V<2> and V<3> are individually independent and mean H or a monovalent substituent; R<1> and R<2> are each an alkyl which may be substituted or may link to each other to form a ring which may be substituted; M is H or a cation).
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