cyclodepsipeptide strongly inhibited growth of a human cancer cell line panel, with GI50’s of 10−4−10−5 μg/mL, and each compound was active against antibiotic-resistant Streptococcus pneumoniae. The structures were elucidated by a combination of X-ray diffraction and mass and 2D NMR spectroscopic analyses, together with chemical degradation.
已从从太平洋(智利南部)螃蟹获得的Bacillus silvestris样品的培养物中分离出两种新的环缩肽,称为杆菌抑制素 1 ( 1 ) 和 2 ( 2 ) 。每个 12 单位环缩肽强烈抑制人类癌
细胞系面板的生长,GI 50为 10 -4 -10 -5 μg/mL,并且每种化合物对抗生素耐药性肺炎链球菌具有活性。通过结合 X 射线衍射和质量和 2D NMR 光谱分析以及
化学降解来阐明结构。