发明公开
EP0523585A2 Improvements in or relating to beta lactam production 失效
Herbenenungen mit Bezug auf die Herstellung von Beta-Laktame。

Improvements in or relating to beta lactam production
摘要:
A new process is described for the production of 7-alpha-aminoacylcephalosporin free from halogen-containing solvents by acylating 7-amino-ceph-3-em-4-carboxylic acid or a derivative thereof in a halogen-free solvent.
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