C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
260/230.3
C07H 17/08 (2006.01)
Patent
CA 1226279
ABSTRACT A method for preparing 6-O-methyl-2'-O,N-bis (benzyloxycarbonyl)-N-demethylerythromycin A which comprises by methylating 2'-O,N-bis(benzyloxycarbonyl)- N-demethylerythromycin A with a methylating agent in the presence of potassium hydroxide or sodium hydroxide in a polar aprotic solvent.
468292
Adachi Takashi
Kikugawa Yasuo
Morimoto Shigeo
Sota Kaoru
Takahashi Yoko
Fetherstonhaugh & Co.
Taisho Pharmaceutical Co. Ltd.
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