Salts of amino-beta-lactamic acids and process for the preparati

Details Salts of amino-beta-lactamic acids and process for the preparati Salts of amino-beta-lactamic acids and process for the preparati

1984-05-18

1987-04-21

Marantz, Sidney

Organic compounds -- part of the class 532-570 series

Organic compounds

Unsubstituted hydrocarbyl chain between the ring and the -c-...

540363, 544279, C07D20508, C07D47104

Patent

active

046598146

ABSTRACT:
Amino-beta-lactamic acid salts, having the formula: ##STR1## wherein: (X-Y) may form a system having from 1 to 3 carbon atoms, with or without double bond, (a) closed, in which: X is an atom selected from among carbon, oxygen, nitrogen and sulphur; Y is methylene; Z is a carboxy, sulphonic or phosphonic group (b) open, which may comprise a double bond, in which: X is an atom of hydrogen or a methyl, hydroxymethyl or thiol group, Y is an acid radical chosen from the group formed by sulphonic, phosphonic and sulphoamidic acid; Z is missing. R is an atom or hydrogen, or a methoxyl or ethoxyl group. R.sub.1 is, when present, methyl, acetoxymethyl, acylthiomethyl, such as acetyl and benzoyl derivatives, methoxy, chlorine, carbamoyloxymethyl, azido, azidomethyl (alpha, beta)-thioethylamine or a thiomethyl-heterocyclic derivative of the thiazole, thiadiazole, triazole, tetrazole, oxazole, oxadiazole, pyrimidine and imidazole nuclei. R.sub.2 is an atom of hydrogen or a methyl, ethyl, benzyl or phenyl group. m, n may be the same or different and may range from 1 to 4, forming a ring or m=n=O to form an open chain. A process for their preparation is also disclosed.

REFERENCES:
patent: 2865913 (1958-12-01), McKay
patent: 4405782 (1983-09-01), Palomo-Coll

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