| 摘要 |
Indolopyrrolocarbazole derivatives, such as, for example, 12,13-dihydro-1,11-dihydroxy-13-( beta -D-glucopyranosyl)-5H-indolo[2,3-a]pyrrolo[3,4-c]carbazole-5,7-(6H)-dione or 6-amino derivative thereof, are produced by glycosylating a precursor compound by cultivating with Microtetraspora sp. A34549, Saccharothrix aerocolonigenes ATCC 39243 or mutants thereof, in a nutrient medium containing the precursor compound.
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