其分子结构是由五个成员国，不饱和内酯环两个羟基。
Its molecular structure is made up of a five member, unsaturated lactone ring with two hydroxyl groups.
方法：查阅相关文献，按大环内酯类、喹诺酮类、四环素类分类对8种代表药物进行综合分析。
METHODS: By collecting the literatures and making aggregate analysis of 8 representative drugs depending on the classifications of macrolides, quinolones and tetracyclines.
目的研究新型三环酮内酯te- 802的合成方法。
Aim to study the synthetic procedure of novel tricyclic ketolide, TE-802.
本文即从这方面着手，开展了固定化脂肪酶催化15—羟基十五烷酸甲酯合成环十五内酯的研究。
So in this research, synthesis of cyclopentadecanolide with Methyl 15-Hydroxy-pentadecanate by immobilized lipase had been studied.
四环素类、大环内酯类、喹诺酮类抗生素是治疗解脲支原体感染的主要有效药物。
Tetracyclines macrolides and quinolones are the effective antibiotics in the treatment of these diseases.
本发明涉及通式（1）化合物及药学上可以接受的盐，主要提出一种4”取 代的13-环氮杂内酯类的衍生物。
The invention relates to compounds of a general formula (1) and pharmaceutically acceptable salts, and mainly discloses 4'-substituted 13-cyclo-aza-lactone derivatives.
本发明涉及通式（1）化合物及药学上可以接受的盐，主要提出一种4”取 代的13-环氮杂内酯类的衍生物。
The invention relates to compounds of a general formula (1) and pharmaceutically acceptable salts, and mainly discloses 4'-substituted 13-cyclo-aza-lactone derivatives.
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