The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 1979
Filed:
Nov. 14, 1977
Pfizer Inc., New York, NY (US);
Abstract
Derivatives of kanamycin A, which have an acyl protecting group on the C-3' and C-6' amino groups, and optionally have a benzyl protecting group on the C-3 amino group, are useful intermediates for the preparation of 1-N-(.omega.-amino-2-hydroxyalkyl) derivatives of kanamycin A. Derivatives of kanamycin B, which have an acyl protecting group on the C-2', C-3' and C-6' amino groups, and optionally have a benzyl protecting group on the C-3 amino group, are useful intermediates for the preparation of 1-N-(.omega.-amino-2-hydroxyalkyl) derivatives of kanamycin B. Certain of the partially protected kanamycin A and kanamycin B derivatives of this invention are useful for preparing 1-N-(.omega.-amino-2-hydroxyalkanoyl) derivatives of kanamycin A and B. 1-N-(.omega.-Amino-2-hydroxyalkyl) and 1-N-(.omega.-amino-2-hydroxyalkanoyl)derivatives of kanamycin A and B are known antibacterial agents.