@ A purified isolate of an actinomycete identified as ATCC 39366 is capable of producing the antimicrobial compound CL-1957B which also exhibits antitumor properties.
The antimicrobial compound CL-1957B is produced by cultivating isolate ATCC 39366 under aerobic conditions in a culture medium containing assimilable sources of carbon and nitrogen until a substantial quantity of the CL-1957B compound is produced, and subsequently isolating the compound.
The antibiotic compound CL-1957B, its pharmaceutically acceptable salts, and pharmaceutical compositions comprising this substance together with a pharmaceutically acceptable carrier is also disclosed, as are methods of treating microbial infections and tumors in mammals, employing these pharmaceutical compositions.
一种被鉴定为 A
TCC 39366 的放线菌的纯化分离物能够产生抗菌化合物 CL-1957B,该化合物还具有抗肿瘤特性。
抗菌化合物 CL-1957B 是在好氧条件下,在含有碳源和氮源的
培养基中培养 A
TCC 39366 分离物,直到产生大量的 CL-1957B 化合物,然后分离出该化合物。
本发明还公开了抗生素化合物CL-1957B、其药学上可接受的盐,以及包含这种物质和药学上可接受的载体的药物组合物,以及利用这些药物组合物治疗哺乳动物的微
生物感染和肿瘤的方法。