Siderochelins with anti-mycobacterial activity from Amycolatopsis sp. LZ149

Three new compounds, namely siderochelins D (2), E (3), and F (4), together with one known siderochelin A (1), were isolated from Amycolatopsis sp. LZ149 and elucidated by spectroscopic analyses including1D- and 2D-NMR and X-ray single crystal diffraction. Compounds 1−3 showed antibacterial activity against Mycobacterium smegmatis.