SEARCH Articles Figures Tables Aromatic Heterocycles Pyridine and Pyrrole Electrophilic Attack on N Aromatics Pyrrole and Pyridine Nucleophilic Attack on N Aromatics Pyrrole and Pyridine Pyridine and Pyrrole Pyridine and Pyrrole Pyridine and Pyrrole Two Aromatic Heterocycles Pyrrole, Imidazole, Pyrrolizidine, Pyridine, and Related Alkaloids Pyrroles, Pyridines