Its molecular structure is made up of a five member, unsaturated lactone ring with two hydroxyl groups.
其分子结构是由五个成员国，不饱和内酯环两个羟基。
This is the large ring lactone class antibiotic.
本品为大环内酯类抗生素。
The invention provides a large ring lactone compound and a preparation method thereof.
本发明提供了一种大环内酯类化合物及其制备方法。
The invention provides a large ring lactone compound and a preparation method thereof.
本发明提供了一种大环内酯类化合物及其制备方法。
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