A61K31/165
having aromatic rings, e.g. colchicine, atenolol, progabide
A61K31/165
having aromatic rings, e.g. colchicine, atenolol, progabide
A61K31/167
having the nitrogen of a carboxamide group directly attached to the aromatic ring, e.g. lidocaine, paracetamol
A61K31/167
having the nitrogen of a carboxamide group directly attached to the aromatic ring, e.g. lidocaine, paracetamol