Derivatives of 2,4-diamino-1,3,5-triazinyl-6-phosphonic acid

A derivative of 2,4-diamino-1,3,5-triazinyl-6-phosphonic acid of the formula (I):

• ##STR93## wherein:
• the radicals R, which can be the same, or different from each other, are:
• hydrogen;
• C.sub.1 -C.sub.5 alkyl;
• C.sub.3 -C.sub.5 hydroxyalkyl;
• C.sub.3 -C.sub.4 alkenyl;
• cyclohexyl;
• C.sub.6 -C.sub.10 aryl;
• C.sub.7 -C.sub.8 aralkyl;
• or, taken jointly, can constitute a cyclic structure, as:
• ##STR94## the radicals R.sub.1 and R.sub.2, which can be the same, or different from each other, and which can have different meanings on each triazinic ring, are:
• H;
• C.sub.1 -C.sub.18 alkyl;
• C.sub.2 -C.sub.8 alkenyl;
• C.sub.6 -C.sub.16 cycloalkyl or alkylcycloalkyl;
• ##STR95## wherein:
• m is an integer comprised within the range of form 1 to 7;
• p is an integer comprised within the range of from 1 to 5;
• R.sub.4 is H;
• C.sub.1 -C.sub.8 alkyl;
• C.sub.2 -C.sub.6 alkenyl;
• --C.sub.q H.sub.2q --O--R.sub.6 wherein q is an integer comprised within the range of from 1 to 4 and R.sub.6 is H or C.sub.1 -C.sub.4 alkyl;
• C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
• the radicals R.sub.5, which can be the same, or different from each other, are H;
• C.sub.1 -C.sub.8 alkyl;
• C.sub.2 -C.sub.6 alkenyl;
• C.sub.6 -C.sub.12 cycloalkyl or alkylcycloalkyl;
• C.sub.1 -C.sub.4 hydroxyalkyl;
• or the moiety:
• ##STR96## is replaced by a heterocyclic radical selected from the group consisting of aziridine, pyrrolidine, piperidine, morpholine, thiomorpholine, piperazine, 4-methylpiperazine, 4-ethylpiperazine, 2-methylpiperazine, 2,5-dimethylpiperazine, 2,3,5,6-tetramethylpiperazine, 2,2,5,5-tetramethylpiperazine, 2-ethylpiperazine, and 2,5-diethylpiperazine;
• or in the general formula (I) the moiety:
• ##STR97## is replaced by a heterocyclic radical selected from the group consisting of aziridine, pyrrolidine, piperidine, morpholine, thiomorpholine, piperazine, 4-methylpiperazine, and 4-ethylpiperazine;
• a is 0 or 1;
• b is 0 or an integer comprised within the range of from 1 to 5;
• R.sub.3 is hydrogen or:
• ##STR98## and its meaning may vary within each repeating unit;
• when b is 0, Z is a divalent radical falling within the scope of one of the following formulae:
• ##STR99## wherein the radicals R.sub.7, which may be the same or different from each other, are hydrogen or C.sub.1 -C.sub.4 alkyl;
• ##STR100## wherein r is an integer comprised within the range of from 2 to 14;
• R.sub.8 is hydrogen;
• C.sub.1 -C.sub.4 alkyl;
• C.sub.2 -C.sub.6 alkenyl;
• C.sub.1 -C.sub.4 hydroxyalkyl;
• ##STR101## wherein s is an integer comprised within the range of from 2 to 5 and t is an integer comprised within the range of from 1 to 3;
• ##STR102## wherein:
• X is a direct C--C bond;
• O;
• S;
• S--S;
• SO;
• SO.sub.2 ;
• NH;
• NHSO.sub.2 ;
• NHCO;
• N.dbd.N;
• CH.sub.2 ;
• R.sub.9 is hydrogen;
• hydroxy;
• C.sub.1 -C.sub.4 alkyl;
• C.sub.1 -C.sub.4 alkoxy;
• ##STR103## wherein A can be saturated or unsaturated ring;
• ##STR104## wherein s has the above defined meaning;
• when, on the contrary, b is an integer comprised within the range of from 1 to 5, the moiety;
• ##STR105## is a multivalent radical falling within the scope of one of the following formulae:
• ##STR106## wherein:
• R.sub.10 is hydrogen or C.sub.1 -C.sub.4 alkyl;
• c is an integer comprised within the range of from 1 to 5;
• the indexes s, which can be the same, or different from each other, have the same meaning as defined hereinabove;
• ##STR107## wherein:
• R.sub.10 has the same meaning as defined hereinabove;
• w is an integer comprised within the range of from 2 to 4;
• d is either 1 or 2.