Sulfonyl-Bridged Biscarbazoles and C−N-Linked Heterodimers from Mangrove-Derived Streptomyces sp. OUCMDZ-5511: Structural Identification, Biosynthetic Logic, and Cytotoxic Evaluation
Chemical investigation of the mangrove-derived Streptomyces sp. OUCMDZ-5511, cultured on NaBr-supplemented solid media, led to the isolation of ten carbazole derivatives (1−10), including eight previously undescribed analogues (1−8). Their structures including absolute configurations were rigorously elucidated throug...