C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/104.1, 260/1
C07D 501/20 (2006.01)
Patent
CA 1134348
Abstract of the disclosure: Process for the manufacture of cephem compounds of the formula Image by acylation with a carboxylic acid of the formula Image the activation being reached with an acid halide forming agent in the presence of special carboxylic acid deriva- tives.
331786
Bormann Dieter
Hitzel Volker
Lattrell Rudolf
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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