Instructions: Given a title, a list of keywords and main findings, create an abstract for a scientific article.
Title: Additional pyrrolomycins from cultures of Streptomyces fumanus.
Keywords: Antibiotics, Absolute stereochemistry, Antimicrobial activity, Structure elucidation, Isolation, antimicrobial activity, structure elucidation, antibiotics.
Main findings: pyrrolomycin G, pyrrolomycin H, pyrrolomycin I, pyrrolomycin J, Pyrroxamycin, AL-R2081; Dioxapyrrolomycin; LL-F42248-alpha were isolated from Streptomyces fumanus.
Abstract: Your response should contain 800+ words.
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