C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
260/230.5
C07H 15/22 (2006.01) C07H 15/236 (2006.01)
Patent
CA 1106842
Abstract 1-N-Alkyl-substituted-kanamycin derivatives are prepared by a new process in which a 3",6'-di-N-acyl-3-N-formyl-kanamycin A or a 2',3",6'-tri-N- acyl-3-N-formyl-kanamycin B is alkylated, preferably by reductive alkylation. The process enables the alkyl kanamycin derivatives to be prepared from the readily available fermentation product kanamycin. The 3-N-formyl intermediates are new and their preparation is also described.
309510
Pfizer Corporation
Smart & Biggar
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