| US 7,491,832 B2 | ||
| Sulfonate compound and fluorescent probe using the same | ||
| Hatsuo Maeda, Suita (Japan); Kazumasa Hirata, Suita (Japan); and Kazuhisa Miyamoto, Suita (Japan) | ||
| Assigned to Osaka Industrial Promotion Organization, Osaka (Japan) | ||
| Filed on Jan. 10, 2006, as Appl. No. 11/328,995. | ||
| Application 11/328995 is a continuation of application No. PCT/JP2004/009661, filed on Jul. 07, 2004. | ||
| Claims priority of application No. 2003-273659 (JP), filed on Jul. 11, 2003. | ||
| Prior Publication US 2006/0105410 A1, May 18, 2006 | ||
| Int. Cl. C07D 265/34 (2006.01); C07D 311/88 (2006.01) | ||
| U.S. Cl. 549—223 [549/344; 549/388; 549/392; 549/393] | 3 Claims |
1. A sulfonate compound represented by a formula (I) below,
 where an atomic group A-O is an atomic group that forms a fluorescent compound (excluding hydroxycoumarin and derivatives
thereof) upon cleavage of a covalent bond with a sulfonyl group,
there may be one or plural atomic groups B—SO3— bound to an atomic group A,
A is represented by a formula (X-1) or (X-2) below,
 where, in the above formulae, X1, X2, X3 and X4 each denote a hydrogen atom or halogen atom, and may be the same or different, and
an atomic group B is at least one selected from the group consisting of a pentafluorophenyl group, a 2,4,6-trifluorophenyl
group, a 2,4,6-tris(trifluoromethyl)phenyl group, and a 2,4-bis(trifluoromethyl)phenyl group.
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