发明授权
US4539152A 4-Substituted-2-oxoazetidine compounds 失效
4-取代的-2-氧代氮杂环丁烷化合物

4-Substituted-2-oxoazetidine compounds
摘要:
The present invention relates to novel 4-substituted-2-oxoazetidine compounds and to processes for preparing the same. These compounds are useful intermediates for preparing antibiotics having the basic skeleton of Thienamycin.
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