Azetidines, their preparation and their application as intermediates for the preparation of compounds with antimicrobial activity

Abstract From the Canadian patent

Azetidine of general formula (I):, (see fig.I) wherein R3 represents a radical having up to five carbone atoms and selected from the group consisting of an amino radical, an alkylamino radical, a dialkylamino radical a, cycloalkylamino radical, an acylamino radical an, alkylacylamino radical, an aminomethyl radical an, alkylaminomethyl radical, an acylaminomethyl radical or an alkylacylaminomethyl radical, in which radicals each acyl fragment may be substituted with one or more halogen especially fluorine, atoms; and R1, R2 R4, R5 and R6, represent a hydrogen atom or a lower alkyl radical with the, proviso that at least one of them represents a lower alkyl radical, and also their salts. The …