| 摘要 |
A compound represented by the following general formula (I) or a salt thereof: [wherein R1 and R2 represent hydrogen atom, a C1-6 alkyl group, or a group represented by the following formula (A): [wherein X1 and X2 represent hydrogen atom, or a group represented as -N(R3)(R4) (R3 and R4 represent hydrogen atom, a C1-6 alkyl group, a C1-6 alkylcarbonyl group, or a C1-6 alkyloxycarbonyl group); and n represents an integer of 1 to 6 ], provided that R1 and R2 do not simultaneously represent hydrogen atom), which is a novel luciferin derivative that serves as a luciferase substrate.
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