alpha-(4-(5-((2-carboxy)phenyl)-5-hydroxy-4-oxo-3-phenyl-2-pyrrolin-1-yl)phenyl)-N-(tert-butyl)nitrone
alpha-(4-(5-((2-carboxy)phenyl)-5-hydroxy-4-oxo-3-phenyl-2-pyrrolin-1-yl)phenyl)-n-(tert-butyl)nitrone