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method for the production of 7 - aminocefalosporanzuurderivaten with free free amino group on the 7 - location and method for the production of 7 - acylaminocefalosporanzuur antibiotics therefrom.
method for the production of 7 - aminocefalosporanzuurderivaten with free free amino group on the 7 - location and method for the production of 7 - acylaminocefalosporanzuur antibiotics therefrom.
