Back to results
US 3,939,149 AGranted
Ureidoacetamido-penicillins
AssigneeBayer Aktiengesellschaft
InventorsHans-Bodo Konig, Wilfried Schrock, Hans Disselnkotter, Karl Georg Metzger
Life of this patent
Estimating the term…
Abstract
6-(.alpha.-3-Acyl-ureidoacetamido)-penicillanic acids and pharmaceutically acceptable non-toxic salts thereof in which the hydrogen atom of the nitrogen atom present in the 3-position is substituted, are effective against Gram-positive and Gram-negative infections, particularly Klebsiella aerobacter infections.
Claims5
A compound selected from the group consisting of a penicillin of the formula:
- ##EQU21## and the pharmaceutically acceptable nontoxic salts thereof wherein
- the carbon atom designated by * constitutes a center of chirality, ##EQU22## in which m is 3, and B is ##SPC4##
- wherein
- R.sub.4, r.sub.5 and R.sub.6 are the same or different, and are each hydrogen, halo, lower alkyl, lower alkoxy, lower alkylthio, lower alkylthionyl, lower alkylsulphonyl, nitro, di(lower alkyl)amino, lower alkanoylamino, hydroxy, or lower alkanoyloxy.
1 more element
Dependencies are inferred from the claim text.