115891-08-2
2-((4-(methylthio)phenyl)amino)nicotinic acid
→
115891-25-3
methyl 2-((4-(methylthio)phenyl)amino)nicotinate
89108-89-4
3-butyl-4-hydroxy-1-(4-methylsulfanylphenyl)-1,8-naphthyridin-2-one