发明授权
US4908351A Antibiotic a 42867 derivative 失效
抗生素一42867衍生物

Antibiotic a 42867 derivative
摘要:
The present invention is directed to a new antibiotic substance denominated antibiotic A 42867 pseudoaglycon, a pharmaceutically acceptable salt thereof, a process for its preparation from antibiotic A 42867 and pharmaceutical compositions containing the new substance of the invention.
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