Antibacterial surface active agent containing azaalkenelactam

Details Antibacterial surface active agent containing azaalkenelactam Antibacterial surface active agent containing azaalkenelactam

1980-12-01

1982-08-24

Bond, Robert T.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

2602393R, A61K 3155, C07D24308

Patent

active

043460879

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

This invention relates to novel antibacterial surface active agents containing novel cyclic amides. More particularly, the antibacterial surface active agent of this invention comprises a compound which has in the same molecule a hydrophobic group comprising a chain of 8 to 22 carbon bonds and a hydrophilic group as shown below, comprising a 7- or 8--membered lactam group containing a basic nitrogen atom, ##STR2## wherein R', R" and R'" are hydrogen atoms or methyl groups, m=1 or 2 and n=2 or 3; said compound may assume a structure which allows the compound to combine at the position of said basic nitrogen atom with an organic acid radical by covalent bond or to add to an organic or inorganic acid.


DISCLOSURE OF THE INVENTION

As a result of extensive studies, the present inventors confirmed by IR, NMR and mass spectral analyses of the reaction products that on reacting an acetoacetic ester or formylpropionic ester of a lower alcohol with a polyamine having primary amino groups and secondary amino groups which are interposed therebetween with 2 or 3 methylene radicals there is formed at first a nitrile bond by the reaction between said primary amino group of the polyamine and the carbonyl group of the ketone or aldehyde, followed by the formation of a lactam group by the reaction between said secondary amino group and the carbonyl group of the ester in the same molecule; they further confirmed by neutralization titration using an organic and an inorganic acids that the nitrogen forming said nitrile bond has a basic property, and found that the reaction products including those having an organic acid radical obtained by the reaction of a monohalocarboxylic acid with said nitrogen have a surface activity at the liquid-water interfaces and have an antibacterial activity, too.
More particularly, the antibacterial surface active compound of this invention is a cyclic amide represented by the general formula ##STR3## (wherein, R is an alkyl group, alkenyl group, alkylaryl preferably monoalkylphenyl group, alkylarylalkyl preferably monoalkylbenzyl group, hydroxyalkyl group, acyl preferably alkylcarbonyl or alkenylcarbonyl group, or hydroxyl-substituted acyl preferably hydroxyl-substituted alkycarbonyl or alkenylcarbonyl group having 8 to 22 total carbon atoms, R', R" and R'" are hydrogen atoms or methyl groups, A is hydrogen atom or hydroxyl group, O.ltoreq.W.ltoreq.1, O.ltoreq.X+Z.ltoreq.3, O.ltoreq.Y.ltoreq.3, O.ltoreq.p+q+r.ltoreq.3, m=1 or 2, and n=2 or 3; said cyclic amide may have a structure which, if necessary, allows the nitrogen atoms, except for the amide group, to combine with an organic acid radical by covalent bond or to add to an organic or inorganic acid) which is formed by reacting an acetoacetic ester or formylpropionic ester of an alcohol having 4 or less carbon atoms with at least one compound represented by the general formula ##STR4## (wherein R is an alkyl group, alkenyl group, alkylaryl preferably monoalkylphenyl group, alkylarylalkyl preferably monoalkylbenzyl group, hydroxyalkyl group, acyl preferably alkyl- or alkenylcarbonyl group, or hydroxyl-substituted acyl preferably hydroxy-substituted alkyl- or alkenylcarbonyl group having 8 to 22 total carbon atoms, A is hydrogen atom or hydroxyl group, O.ltoreq.W.ltoreq.1, O.ltoreq.X+Z.ltoreq.3, O.ltoreq.V.ltoreq.3, 1.ltoreq.a+b+c.ltoreq.4) composed of a terminally monoalkylated polyalkylenepolyamine (the hydrocarbon radicals include alkyl groups, alkenyl groups, alkylaryl preferably monoalkylbenzyl groups, alkylarylalkyl preferably monoalkylbenzyl groups, hydroxyalkyl groups, alkoxyalkyl groups, alkoxyhydroxyalkyl groups, etc.), said polyalkylenepolyamine being obtained by the addition of 1 to 3 moles of ethyleneimine to 1 mole of ethylenediamine or 1,3-propylenediamine or by the addition of acrylonitrile to said diamine followed by hydrogenation, said addition and hydrogenation being repeated 1 to 3 times (in each reaction cycle, 1 mole of acrylonitrile and 2 moles of hydrogen are used for 1 mole of the amine used as starti

REFERENCES:
patent: 3419548 (1968-12-01), Gatzi et al.

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