C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/462.1
C07F 9/14 (2006.01) C07F 9/06 (2006.01) C07F 9/145 (2006.01)
Patent
CA 1133007
X-5128 -1- Abstract Novel halogenating agents are derived from triaryl phosphites and chlorine or bromine. They are useful in converting 7-acylamino-3-hydroxy-3-cephem compounds to 7- acylamino-3-halo-3-cephems and the corresponding C-7 imino halide cephem derivatives.
344681
Blaszczak Larry C.
Fisher Jack W.
Hatfield Lowell D.
Eli Lilly And Company
Gowling Lafleur Henderson Llp
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