C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/453.1
C07F 9/14 (2006.01) C07F 9/02 (2006.01)
Patent
CA 1132597
X-5161 -01- Abstract A process wherein the kinetically controlled products of the reaction of triaryl phosphites and bromine or chlorine are stabilized by the presence of tertiary amine bases or halide complexing reagents. The stabilized halogenating reagents are useful in the preparation of 3-halo-3-cephem antibiotic compounds.
344680
Eli Lilly And Company
Gowling Lafleur Henderson Llp
LandOfFree
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