C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
260/230.35
C07H 17/08 (2006.01)
Patent
CA 1292737
X-6830 Abstract of the Invention This invention provides an improvement in the process for preparing C-20-amino-substituted derivatives of the macrolide antibiotics of the tylosin type by reductively aminating the C-20 aldehyde group in the parent antibiotic. The improvement comprises using formic acid as the reducing agent. The new process is less expensive and more amenable to scale-up than previously used processes, but is still selective.
532905
Tao Eddie Vi-Ping
Vicenzi Jeffrey Thomas
Eli Lilly And Company
Gowling Lafleur Henderson Llp
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