Four new antibiotics, TMC-171A (2), B (3), C (4) and TMC-154 (5) have been isolated from the fermentation of fungal strains Gliocladium sp. TC 1304 and TC 1282, respectively. Spectroscopic and degradation studies have shown that TMC-171s and TMC-154 were new members of the TMC-151 class of antibiotics, unique polyketides modified with a D-mannose and a D-mannitol or a D-arabitol. These compounds showed moderate cytotoxicity to various tumor cell lines.
从真菌菌株 Gliocladium sp. TC 1304 和 TC 1282 的发酵中分别分离出四种新抗生素 TMC-171A (2)、B (3)、C (4) 和 TMC-154 (5)。光谱和降解研究表明,TMC-171s 和 TMC-154 是 TMC-151 类抗生素的新成员,是用
D-甘露糖和 D-
甘露醇或
D-阿拉伯糖醇修饰的独特多酮化合物。这些化合物对多种肿瘤细胞株具有适度的细胞毒性。