The invention relates to nitrogenous heterocyclic compounds of formula
in which:
R
1
represents hydrogen, —(CH
2
)
m
—NH
2
, —(CH
2
)
m
—NH(C
1
-C
6
)alk, —(CH
2
)
m
—N(C
1
-C
6
)alk
2
, —(CH
2
)
m
—NH—C(NH)NH
2
or —(CH
2
)
m
—NH—CH═NH, m is equal to 1 or 2;
R
2
and R
3
together form a nitrogenous heterocycle of aromatic character with 5 vertices containing 1, 2 or 3 nitrogen atoms, substituted on a nitrogen atom by R
4
;
R
4
represents hydrogen, C
1
-C
6
)alk or a chain of formula:
-(A)
n
-(NH)
o
—(CH
2
)
p
—(CHR′)
q
R″
A represents C═O, C═NH or SO
2
;
R′ represents hydrogen or carboxy.
该发明涉及一种具有以下结构的含氮
杂环化合物:其中:R1代表氢、—(
CH2)m—NH2、—( )m—NH(C1-C6)烷基、—( )m—N(C1-C6)烷基2、—( )m—NH—C(NH)NH2或—( )m—NH—CH═NH,m等于1或2;R2和R3一起形成一个具有5个顶点的含氮芳香性杂环,其中含有1、2或3个氮原子,通过R4取代一个氮原子;R4代表氢、C1-C6)烷基或一个具有以下结构的链:-(A)n-(NH)o—( )p—(CHR′)qR″,其中A代表C═O、C═NH或SO2;R′代表氢或羧基。