| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a novel tryptanthrin derivative useful as a fluorescent material, a raw material of a FRET-type chemical sensor, or the like. <P>SOLUTION: There is provided the tryptanthrin derivative represented by formula (I) [in the formula, R<SP>1</SP>and R<SP>2</SP>each represent a hydrogen atom or an alkyl group that may contain a substituent; R<SP>3</SP>and R<SP>4</SP>may be the same or different and each represent an alkyl group that may contain a substituent, an alkenyl group that may contain a substituent, an alkoxy group that may contain a substituent, an alkoxycarbonyloxy group that may contain a substituent, an alkoxycarbonyloxy group that may contain a substituent, a halogen atom, a carboxyl group, a hydroxy group, a cyano group, or a nitro group; and m and n may be the same or different and each represent an integer of 0 to 3]. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
