US 12,201,611 B2
Composition comprising high purity pyrrole derivative and method for preparation thereof
Kumar Kamlesh Singh, Gujarat (IN); Sanjay Jagdish Desai, Gujarat (IN); Piyush Rajendra Sharma, Gujarat (IN); Daya Ram Pal, Gujarat (IN); Sanjeev Kumar Tripathi, Gujarat (IN); and Mayur Ramnikbhai Patel, Gujarat (IN)
Assigned to Zydus Lifesciences Limited, Gujarat (IN)
Filed by Zydus Lifesciences Limited, Gujarat (IN)
Filed on Jul. 23, 2021, as Appl. No. 17/383,930.
Claims priority of application No. 202021031686 (IN), filed on Jul. 24, 2020.
Prior Publication US 2022/0023262 A1, Jan. 27, 2022
Int. Cl. A61K 31/4025 (2006.01); A61K 31/336 (2006.01)
CPC A61K 31/4025 (2013.01) [A61K 31/336 (2013.01)] 12 Claims
 
1. A composition comprising saroglitazar magnesium having a purity of about 99.0% or more by weight, and one or more of an aldehyde compound of Formula (II), a diketo oxirane compound of Formula (III), and a hydroxy methyl compound of Formula (IV), each of the compounds of Formula (II), Formula (III), or Formula (IV), when present, is in a detectable amount of about 0.15% or less, relative to saroglitazar magnesium by weight, when measured by area percentage of HPLC,

OG Complex Work Unit Chemistry