C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/100
C07D 501/04 (2006.01) C07D 499/00 (2006.01) C07D 505/00 (2006.01) C07D 513/04 (2006.01)
Patent
CA 1146536
X-5142 -1- Abstract Cephalosporin sulfoxides are reduced to the corresponding cephalosporins in the presence of a halogen scavenger with triaryl phosphite-halogen complexes derived from the kinetically controlled reaction of selected triaryl phosphites and chlorine or bromine.
344678
Eli Lilly And Company
Gowling Lafleur Henderson Llp
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