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4. Microorganism Capable of Producing Compounds where Pyrrole Is Fused with 4-oxo-1,3-benzoxazine and Method of Use as Antibacterial and Antifungal;Olson,1998
5. Preparation of Pyrrolo[2,1-b][1,3]benzoxazines as Antibacterial Agents;Domagala,1998