What is "spectinabilin"

Spectinabilin is a nitrophenyl-substituted polyketide metabolite. It was first isolated from crude streptovaricin complex produced by Streptomyces spectabilis and presented at the 13th Interscience Conference on Antimicrobial Agents and Chemotherapy in Washington, D.C. in September 1973. Spectinabilin is a biologically active compound, exhibiting both antimalarial and antiviral activity.''