US 11,053,222 B2
Fluorescent compounds
Greg Hermanson, Loves Park, IL (US); Peter T. Czerney, Weimar (DE); Surbhi Desai, Rockford, IL (US); Matthias S. Wenzel, Jena (DE); Boguslawa Dworecki, Rockford, IL (US); and Frank G. Lehmann, Jena (DE)
Assigned to Pierce Biotechnology, Inc., Rockville, IL (US); and Dyomics GmbH, Jena (DE)
Filed by Pierce Biotechnology, Inc., Rockville, IL (US); and Dyomics GmbH, Jena (DE)
Filed on Jun. 10, 2019, as Appl. No. 16/436,512.
Application 16/436,512 is a continuation of application No. 15/817,561, filed on Nov. 20, 2017, granted, now 10,351,551.
Application 15/817,561 is a continuation of application No. 13/330,993, filed on Dec. 20, 2011, granted, now 10,053,447, issued on Aug. 21, 2018.
Claims priority of provisional application 61/425,446, filed on Dec. 21, 2010.
Claims priority of provisional application 61/446,319, filed on Feb. 24, 2011.
Claims priority of provisional application 61/480,840, filed on Apr. 29, 2011.
Claims priority of provisional application 61/482,933, filed on May 5, 2011.
Prior Publication US 2019/0359596 A1, Nov. 28, 2019
Int. Cl. C07D 403/06 (2006.01); C07D 209/10 (2006.01)
CPC C07D 403/06 (2013.01) [C07D 209/10 (2013.01)] 12 Claims
 
1. A compound of general formula I

OG Complex Work Unit Chemistry
where each of R1 and R2 is the same or different and is independently selected from the group consisting of an alkyl and sulfoalkyl group;
X is selected from the group consisting of —OH, —SH, —NH2, —NH—NH2, —F, —Cl, —Br, and —I,
Kat is one or more cations needed to balance the negative charge of the compound;
m is 0;
o is an integer from 0 to 12 inclusive; and
n is an integer from 1 to 3 inclusive.