US 9,809,548 B2
Polymorphic forms of the sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]-benzene sulfonamide
Joanna Bis, Cary, NC (US); and David H. Igo, Research Triangle Park, NC (US)
Assigned to ChemoCentryx, Inc., Mountain View, CA (US)
Filed by ChemoCentryx, Inc., Mountain View, CA (US)
Filed on Oct. 10, 2016, as Appl. No. 15/289,629.
Application 15/289,629 is a division of application No. 14/832,755, filed on Aug. 21, 2015, granted, now 9,493,417.
Application 14/832,755 is a division of application No. 14/234,279, granted, now 9,150,513, previously published as PCT/US2012/047513, filed on Jul. 20, 2012.
Claims priority of provisional application 61/510,559, filed on Jul. 22, 2011.
Prior Publication US 2017/0022161 A1, Jan. 26, 2017
Int. Cl. C07D 211/82 (2006.01); C07D 213/89 (2006.01); A61K 31/44 (2006.01); A61K 31/4425 (2006.01); A61K 45/06 (2006.01)
CPC C07D 213/89 (2013.01) [A61K 31/44 (2013.01); A61K 31/4425 (2013.01); A61K 45/06 (2013.01); C07B 2200/13 (2013.01)] 7 Claims
 
1. A crystalline form of a sodium salt of 4-tert-butyl-N-[4-chloro-2-(1-oxy-pyridine-4-carbonyl)-phenyl]-benzenesulfonamide, wherein the crystalline form is characterized by an X-ray powder diffraction pattern substantially in accordance with FIG. 3.