GB1598294A — Process for the preparation of kanamycin derivatives
Assigned to Bristol Myers Co · Expires 1981-09-16 · 45y expired
What this patent protects
1-N-[ omega -amino- alpha -hydroxyalkanoyl] kanamycins A and B of the formula I <IMAGE> in which R represents OH or NH2, are prepared by acylation of polysilylated kanamycin A or B, or polysilylated kanamycin A or B which has a protective group other than silyl on the 6'-am…
USPTO Abstract
1-N-[ omega -amino- alpha -hydroxyalkanoyl] kanamycins A and B of the formula I <IMAGE> in which R represents OH or NH2, are prepared by acylation of polysilylated kanamycin A or B, or polysilylated kanamycin A or B which has a protective group other than silyl on the 6'-amino group, with an acylating derivative of an acid of the formula II <IMAGE> in which n is an integer from 0 to 2 and B is an amino protective group, in an essentially anhydrous organic solvent and by subsequent removal of all blocking groups. The compounds have therapeutic properties.
Drugs covered by this patent
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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