Abstract: The invention relates to nitrogenous heterocyclic compounds of formula (I): in which: R1 represents hydrogen, —(CH2)m—NH2, —(CH2)m—NH(C1-C6)alk, —(CH2)m—N(C1-C6)alk2, —(CH2)m—NH—C(NH)NH2 or —(CH2)m—NH—CH?NH, m is equal to 1 or 2; R2 and R3 together form a nitrogenous heterocycle of aromatic character with 5 vertices containing 1, 2 or 3 nitrogen atoms, substituted on a nitrogen atom by R4; R4 represents hydrogen, C1-C6)alk or a chain of formula: -(A)n-(NH)o—(CH2)p—(CHR?)qR? A represents C?O, C?NH or SO2; R? represents hydrogen or carboxy.

Abstract: The invention relates to nitrogen-containing heterocyclic compounds of general formula (I) wherein: R1 represents a (CH2)n—NH2 radical, n being equal to 1 or 2; R2 represents a hydrogen atom; R3 and R4 form together a nitrogen-containing heterocycle with aromaticity with 5 apices containing 1, 2 or 3 nitrogen atoms, substituted on this nitrogen atom or one of these nitrogen atoms with a (CH2)m—(C(O))p—R5 group, m being equal to 0, 1, 2 or 3, p being equal to 0 or 1 and R5 representing a hydroxy group, in which case p is equal to 1, or an amino, (C1-C6)alkyl or di-(C1-C6)alkyl amino, a nitrogen-containing heterocycle with aromaticity with 5 or 6 apices containing 1 or 2 nitrogen atoms and if necessary, an oxygen or sulfur atom; it being understood that when the sub-group (C(O))p—R5 forms a carboxy, amino, (C1-C6) alkyl or di-(C1-C6) alkyl amino, group, m is different from 0 or 1; in free form or as zwitterions and salts with pharmaceutically acceptable mineral or organic bases and acids, to their pre

Abstract: The invention concerns nitrogenated heterocyclic compounds, their preparation and use as antibacterial drugs, compounds of general formula (I) wherein R1 represents a (CH2)n-NHR2 or (CH2)n-NHR radical, where R is a (C1-C6) alkyl and n is equal to 1 or 2; R2 represents a hydrogen atom; R3 and R4 together form an aromatic nitrogenated heterocycle with 5 apexes with 1, 2 or 3 nitrogen atoms optionally substituted by one or several R? groups, R? being selected in the group composed of a hydrogen atom and alkyl radicals with 1 to 6 carbon atoms; in free form, as zwitterions, and in the form of salts of pharmaceutically acceptable inorganic or organic bases and acids.

Abstract: The invention concerns nitrogenated heterocyclic compounds, their preparation and use as antibacterial drugs, compounds of general formula (I) wherein R1 represents a (CH2)n—NH2 or (CH2)n—NHR radical, where R is a (C1-C6) alkyl and n is equal to 1 or 2; R2 represents a hydrogen atom; R3 and R4 together form an aromatic nitrogenated heterocycle with 5 apexes with 1, 2 or 3 nitrogen atoms optionally substituted by one or several R? groups, R? being selected in the group composed of a hydrogen atom and alkyl radicals with 1 to 6 carbon atoms; in free form, as zwitterions, and in the form of salts of pharmaceutically acceptable inorganic or organic bases and acids.

Abstract: The invention relates to nitrogenous heterocyclic compounds of formula in which: R1 represents hydrogen, —(CH2)m—NH2, —(CH2)m—NH(C1-C6)alk, —(CH2)m—N(C1-C6)alk2, —(CH2)m—NH—C(NH)NH2 or —(CH2)m—NH—CH?NH, m is equal to 1 or 2; R2 and R3 together form a nitrogenous heterocycle of aromatic character with 5 vertices containing 1, 2 or 3 nitrogen atoms, substituted on a nitrogen atom by R4; R4 represents hydrogen, C1-C6)alk or a chain of formula: -(A)n-(NH)o—(CH2)p—(CHR?)qR? A represents C?O, C?NH or SO2; R? represents hydrogen or carboxy.

Abstract: The invention relates to nitrogen-containing heterocyclic compounds of general formula (I) wherein: R1 represents a (CH2)n—NH2 radical, n being equal to 1 or 2; R2 represents a hydrogen atom; R3 and R4 form together a nitrogen-containing heterocycle with aromaticity with 5 apices containing 1, 2 or 3 nitrogen atoms, substituted on this nitrogen atom or one of these nitrogen atoms with a (CH2)m—(C(O))p—R5 group, m being equal to 0, 1, 2 or 3, p being equal to 0 or 1 and R5 representing a hydroxy group, in which case p is equal to 1, or an amino, (C1-C6)alkyl or di-(C1-C6)alkyl amino, a nitrogen-containing heterocycle with aromaticity with 5 or 6 apices containing 1 or 2 nitrogen atoms and if necessary, an oxygen or sulfur atom; it being understood that when the sub-group (C(O))p—R5 forms a carboxy, amino, (C1-C6) alkyl or di-(C1-C6) alkyl amino, group, m is different from 0 or 1; in free form or as zwitterions and salts with pharmaceutically acceptable mineral or organic bases and acids, to their prepara