Hydroxyamino-hydrocarbonphosphonic acid derivatives and production and use thereof

Abstract From the Canadian patent

New hydroxyaminohydrocarbonphosphonic acid derivatives are provided of formula, wherein R1 is hydrogen or acyl R2 is hydrogen, lower alkyl, ar(lower)alkyl or acyl and A is lower alklene, lower alkenylene or hydroxy(lower)alkylene, or the ester at the phosphono group thereof or the salt thereof: processes for preparing the derivatives are also provided, the new derivatives possess strong antibacterial activity against both Gram-positive and Gram-negative bacteria including those of the genera Bacillus Salmonella, Pseudonomas and Entcrobacter.