CA2157187A1 - Novel distamycin analogues - Google Patents

Novel distamycin analogues

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Publication number
CA2157187A1
CA2157187A1 CA002157187A CA2157187A CA2157187A1 CA 2157187 A1 CA2157187 A1 CA 2157187A1 CA 002157187 A CA002157187 A CA 002157187A CA 2157187 A CA2157187 A CA 2157187A CA 2157187 A1 CA2157187 A1 CA 2157187A1
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CA
Canada
Prior art keywords
methyl
pyrrol
carboxyamido
chloroethyl
bis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002157187A
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French (fr)
Inventor
Fabio Animati
Paolo Lombardi
Cristina Rossi
Giuseppe Giannini
Giovanna Di Pietro
Federico Arcamone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Menarini Industrie Farmaceutiche Riunite SRL
Bristol Myers Squibb SpA
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Individual
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Publication date
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Publication of CA2157187A1 publication Critical patent/CA2157187A1/en
Abandoned legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/28Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton
    • C07C237/36Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton having the nitrogen atom of the carboxamide group bound to an acyclic carbon atom of a hydrocarbon radical substituted by carboxyl groups
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/40Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/04Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C237/10Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/14Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being saturated and containing rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/20Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton containing six-membered aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C237/22Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton having nitrogen atoms of amino groups bound to the carbon skeleton of the acid part, further acylated
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C237/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups
    • C07C237/24Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a ring other than a six-membered aromatic ring of the carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/30Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D207/34Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms

Abstract

Described are pyrrol-amidinic compounds of general formula (I) and their pharmaceutically acceptable salts, processes for their preparation and pharmaceutical compositions containing them, useful as antitumoral.

Description

Pyrrol- ~inic compounds and their ph~ -^e7ltically acceptable salts, processes for their preparation and pharmaceutical c~ tions cont~;nin~ them.
Field of the invention The present invention refers to pyrrol-amidinic compounds of general formula (I) r~~1CI~d m 3 K Q~ H

(I) and their pharmaceutically acceptable salts wherein :
n is O or an integer ranging from 1 to 4 m is O or an integer ranging from 1 to 4 A is selected from the group consisting of cyclohexyl, p-phen.-lene, l-methylpyrrole, thiophene, thiazole, imidazole, furan, isoxazole, oxazole, triazole, pyridine. pyrrole;
B is selected from the group consisting of : a simple chemical bonc. -CO-NH-CH(R3~ NH-CO-CH(R3)- wherein R3 is H or the side 15 ~ch~7~ of a natural alpha-aminocarboxylic acid;
X is selected from the group consisting of : -NHCO-, -CONH- and A~ D SH~

~1~7I87 wherein :
i) Rl and R2 are equal and are selected from the group consisting of : oxiranomethyl, l-aziridinomethyl, C2_4 alkyl optionally substltuted in position 2 with an OH, C2_4 alkoxy, halogen or -OSO2R4 group wherein R4 is selected from the group consisting of Cl_4 alkyl or phenyl or ii) Rl = H and R2 is as above described provided that :
when B = chemical bond, n is different from 1 when X = -CONH-, B = simple chemical bond, m is different from O
when B = -CO-NH-CH(R3)- X is different from -NHCO-when B = -~H-CO-CH(R3)- X is different from -CONH-Furthermore the invention relates to processes for the preparation of the above mentioned compounds, to their pharmacologically active salts and to pharmaceutical compositions contAin;ng them.
Prior art .~ntibiotic dystamicine is a known compound of formula (II) :

HCONH

~;~rl H H

A~',EN~:3rD Sl~

belcnging to the pyrrol-~mi~inic group and showing interesting antiviral activity, for example against the herpetic viruses and ~oloney sarcoma virus, is characterized by the ability to interact reversibly and selectlvely with DNA sequences rich in dA and dT
bases thereby interfering both in the replication and transcrlption process [see Arcamone in B. Pull~an and J. Jorterez (eds) "Molecular basis of specificity in nucleic acid - drug interaction"
369-383, lggo Kluwer Academic Publishers].
As is known, antiviral and antitumoral agents nowadays used in therapy are characterized by serious side effects, limiting their use in a large number of cases which on the contrary should take advantage from the therapy; moreover therapeutical progresses are necessary in the clinical treatment of important solid tumors, as for example pl11 m~n~ry tumors and ovarian tumors, not responding adequately to any treatment nowadays in use.
Pyrr~ mi~inic compounds having chemical structures similar to the one described in the present application, and showing antitumor and antiviral properties. are described in: EP - A - 388 948; ~P - A - 246 868; Anti-Cancer Drug Design (1986), 1. 235-244;
Bioc;-emical Pharmacology ( 1993), 45. 1536-39; J. Med. Chem. ( 1989) .
32, , ,4 - 778.
A r~uisite for the therapeutic progress in this particular field is therefore the discovery of compounds having molecular moieties alls-~ing them to increase the selectivity in inhibiting viral AM~NcED ~ET

3a 2 1 5 7 1 8 7 proliferation and the proliferation of tumoral rather than healthy ceIls.
Detailed description of the invention The present invention has the aim to render available new antitumoral and antiviral compounds and in particular compounds analogous to dystamicine containing new chemical modifications at ~r AM~NC~D ~ffEET

WO 94/20463 PCT~EP94/005~7 the N-terminal side chain level, and/or contnin;n~ a different number of pyrrolic residues if compared to the natural product.
These compounds, show a marked antitumoral and antiviral activity, as well selectivity in the inhibition of tumoral cells and viruses with respect to the healthy cells.
The compounds according to the present invention are those of general formula (I) R2~N--~(Cl~m ~ b N

~H3 n ~ ~~ 2 (I) wherein:
n, m, A, B, X, R1, R2 are as previously described, and their pharmaceutically acceptable salts.
Besides, the invention, refers to pharmaceutical compositions containing the above mentioned compounds, or pharmaceutically acceptable salts thereof formed with inorganic acids such as hydrochloric, hydrobromic, sulfuric, nitric and the like or with organic acids such as acetic, propionic, succinic, malonic, citric, ~artaric, methansulfonic, p-toluensulfonic and the like.

~ 94/20 ~ PCT~EP94/00557 According to the present invention, preferred are the ,- -ln~ of formula (I) wherein:
n is as above defined m is zero or an integer comprised between 1 and 3.
A = cyclohexyl, p-phenylene, l-methylpyrrole, th;ophpne~ thiazole, ~ ole, furan, isoxazole, oxazole, triazole, pyridine, pyrrole.
B is a simple bond, or when it is a -C0-NH-CH(R3)- group or a -NH-C0-CH(R3)- group, R3 is preferably methyl, isobutyl, sec-butyl, hydroxymethyl, mercaptomethyl, carbamoylmethyl, benzyl, 4-hydroxybenzyl, 5-imidazolylmethyl, 2-carbamoylethyl, 2-methylthioethyl, l-hydroxyethyl, 3-~l~ni~inopropyl~ 4-aminobutyl Rl and R2 represent preferably an ethyl group, 2-hydroxyethyl, 2-chloroethyl, methansulfonylethyl.
The following compounds are particl-l~rly preferred:
3-[1-Methyl-4-tl-methyl-4-t4-tN,N-bis(2-chloroethyl)amino~bPn~PnP-aminocarbonyl]pyrrol-2-caL-bo~y- ;do]pyrrol-2-carbo~y~ido]propionr idine hydrochlorate;
3-tl-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl) amino]benzeneaminocarbonyl]-pyrrol-2-carbo~ -ido]
pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carbox~ ido]
propion~mi~ine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzPne~minocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido] pyrrol-2-carboxyamido]propionamidine hydrochlorate;

WO 94/20463 PCT~EPg4/00557 3-tl-Methyl-4-[l-methyl-4-[4-[N~N-bis(2-chloroethyl)amino]
butPnf idQ]pyrrol-2-carboxyamido]pyrrol-2-csrboxyamido]propiona-midine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-{4-[N,N-bis(2-chloroethyl)-amino]benzenbut~n~mi~n]pyrrol-2-c&-bo~y&~ido]pyrrol-2-csrboxy 'do]pyrrol-2-ca.l,o~ys~ido]pyrrol-2-caLLu~y~ido]propionnmi~i n~ hyd.-ochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-~1-methyl-4-[N,N-bis(2-chloroethyl)amino]ben7~nebùt~n~ ~o]pyrrol-2-carboxyamido]
pyrrol-2-carboxyamido]pyrrol-2-ca.boxy ido] pyrrol-2-ca~bGxy do]
pyrrol-2-carboxyamido]propinn~ ~ine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[4[N,N-bis(2-chloroethyl)amino]benzyl-amino carbonyl]pyrrol-2-carbony ~o]pyrrol-2-caL-bo~y~ ;~o]propion~mi~in~ hydrochlorate;
15 3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2 chloroethylamino)benzylaminocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-ca.-bo~y ~ido]propiona-midine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[2-[4-[N,N-bis(2-chloroethyl)amino) phenyl] et h ~n ~ inocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxa mido] propionamidine hydrochlorate;
3-~1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[2-[4-[N,N-bis (2-chloroethyl) amino]phenyl]eth~n~minocarbonyl]pyrrol-2-carboxa-mido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-~ 94/20463 PCT~EP94/00557 ';~

carboxyamido]prop;onr ~ine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[3-[4-[N,N-bis(2-chloroethyl)amino]
phenyl]propylaminocarbonyl]pyrrol-2-chl-bo~y do]pyrrol-2-carboxa-mido] propisn~ ~ine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-tl-methyl-4-[3-[4-tN,N-bis(2-chloroethyl)amino]phenyl]propylsminocarbonyl]pyrrol-2-carboxy do]pyrrol-2-caLbo~y6~ido]pyrrol-2-carboxyamido]pyrrol-2-carboxy- do] prop;on r ~; n~ hydrochlorate;
3-[1-methyl-4-[1-methyl-4-[1-methyl-4-tl-methyl-4-tl-methyl-4-t3-t4-tN~N-bis(2-chloroethyl)amino]phenyl]propylr ;noc~G-lyl]pyrrol-2-carbG~y do]pyrrol-2-caL-bo~y do]pyrrol-2-caLbu~y ~o]pyrrol-2-carbo~y- ido]pyrrol-2-caLboxy do]propionr '~;ne hydrochlorate;
3-tl-Methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzyl carbo~yr ~o]pyrrol-2-carboxyamido]pyrrol-2-carboxy- do]propion~ ;~;ne hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-tN,N-bis(2-chloroethyl)amino]benzylcarbo~y do]pyrrol-2-carbo~y ~o]pyrrol-2-carboxyamido]pyrrol-2-carboxy ;~o]pyrrol-2-carboxyr i~o]
propionr i~i ne hydrochlorate;
3-[1-Methyl-4-tl-methyl-4-[2-[4-[N,N-bis(2-chloroethyl)amino]
phenyl]ethylcarboxyamido3pyrrol-2-carboxyamido]pyrrol-2-carboxy-amido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[2-[4-[N,N-bis - (2-chloroethyl)amino]phenyl]ethylcarboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-~ ~ ~ 8 ca ~o~y~ido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-me~hyl-4-[1-methyl-4-[N,g-[4-EN,N-bis(2-chloro-ethyl)amino]benzoyl]glycylamino]pyrrol-2-carbG~y ~o]pyrrol-2-c&~-bo~y do]pyrrol-2-carbo~y do]propionr i~inP hydrochlorate;
3-~1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[N,a-[4-[N,N-bis(2-chloroethyl)amino]benzoyl]glycylamino]-pyrrol-2-ca~o~y do]pyrrol-2-carbo~y ~o]pyrrol-2-ca~-~o~y ~o]pyrrol-2-calbo~y ;do]propi on~ ine hydrochlorate;
Compounds of general formula (I) can be prepared according to the following processes:
a) reacting the ~ nd of fo. 1~ (III) Rl~
N-A-(CH2)m-B-COOH

(III) wherein B is a chemical bond or the -CONHCH(R3)- group wherein R3 is as above defined, and m, A, Rl and R2 are as above defined, or a reactive derivative thereof, with a compound of formula (IV) _ CH3 `~ --P H2 (IV) 94/204K3 ~ PCTAEP94/00557 . 9 ~ ~

wherein p is an integer comprised between 2 and 6, thereby obt~ining the compounds of formula (I) wherein X = -CONH-, B is a ~'~ c~1 bond or the -CO-NH-CH(R3)- group and m, n, A, B, Rl, R2 and R3 are as above defined;
a') reacting the compound of formula (V) Rl / N A (CH2)m B NH2 (V) wherein B is a chemical bond or the -NHCOCH(R3)- group, wherein R3 is as above defined, and m, A, R1 and R2 are as above defined, with a c ,_~tn~ of formula (VI) HOOC~
~N ~NH

_ CH3 1 --PH2 (VI) wherein p is an integer comprised between 2 and 6, thereby obt~ining the compounds of formula (I) wherein X = -NHCO-, B is a chemical bond or the -~'H-CO-CH(R3)- group and m, n, A, B, R1, R2 and R3 are as above defined;

WO 94/20463 PCT~EP94/00557 b) reacting the compound of formula (VII) A (CH2~X

N~--COOH
~H (VII) wherein m, A, X, R1 and R2 are as above defined, with a compound of formula (IV) HOOC~

~N ~N~

(IV) wherein p is an integer comprised between 1 and 5, thereby obt~inin~ the compounds of formula (I) wherein B is a chemic~l bond and m, n, A, X, R1 and R2 are as above defined.
The amidation reactions of the compound of formula (III) with a compound of formula (IV) wherein p is an integer comprised between 2 and 6, of the compound of formula (V), wherein Rl, R2, A, m and B
are as previously defined, with the compound of formula (VI), wherein p is comprised between 2 and 6, and of the compound of formula (VIIj, wherein R1, R2, A, m, X are as above defined, with a compound of formula (IV) wherein p is an integer comprised between 1 and 5, can be carried out in the presence of co~Pncing agents as ~ 94/20463 ~ ~ ~ PCT~EPg4/00557 8~

DCC (dicyclnhpyylcarbo~ de) or EDC [l-dimethyl r~i n~propyl)-3-~ ethylcarbo~ de hydrochlorate] and poss~hly in the presence of hydroxybenzotriazole or BOP (benzotriazol-1-iloxy(dimethylaminophncphonit '~ fluoride ph~sph~te) or by using a reactive derivative of the acids (TTT) and (IV) as for example an acylchloride, an acyl~ ole, an acyl~7i~e or an active ester, such as 2,4,5 trichlororh~l~o~yester or N-oxysllcc;ni ~n~cter, or an anhy~.-ide thereof.
Preferably the above defined ~ t~ on reactions are carried out using molar ratio of from 1:1 to 1:3 in an inert organic solvent for example dimethyl sulfoxide. hexamethyl phosphotriamide, dimethylacetamide, or preferably ~ l fo. ~e in the pres~nce of a con~nsing agent as above described and of N-hy~-u~ybenzotriazole or BOP and in the presence of an organic base as triethylamine, diisopropylethylamine and 1,8-bis(dimethylamino)-naphth~l~ne.
The reaction temperature may be comprised between -lO C and 5O C
and the time required for the reaction ranges from 2 to 48 hours.
The reaction of the compound of foL .l~ (III) or the compound of formula (VII) with the compound of fo. l~ (IV) may be csrried out using a reactive derivative of the compound of formula (III) or of the compound of formula (VII) of the above mentioned type, and therefore accompliching the reaction in a biphasic system water-organic solvent as Schotten-B~I ~nn amidation or in an organic WO 94/20463 ~ PCT~EP94/00557 solvent as for example a hydro~yde, a carbonate or a bicarbonate of an ~lkaline metal, preferably sodium, potassium, barium or an organic ba e as triethylamine, diisopropyl~ ne, pyridine or N,N
dimethylaminopyridine.
The reaction is usually conducted at room temperature and the time required for the reaction varies from 2 to 24 hours.
In the process (a), the compounds of formula (III) wherein B is a chemical bond and m, A, Rl and R2 are as above defined, namely the compounds of formula (VIII) Rl\
N-A-(CH2)m~CH

(VIII) either are already commercially av~ hle or they are prepared by conventional processes of the organic chemistry, starting from known compounds as reported for example in J. Med. Chem. 32, 774 (1989) or J. Org. Chem. 26, 4996 or in J. Med. Chem. 33, 1177 ( 1990) .
In the process (a) a compound of formula (III) wherein B is the group -CO-NH-CH(R3)- and m, A, Rl, R2 and R3 are as above defined, can be prepared by the hydrolysis of the compounds of formula (IX) Rl~ .
N-A-(CH2)m-CO-NH-CH(R3)-COORs R2 (IX) ~ 94l20463 - PCT~EP94100557 13 S71~7 wherein A, m. Rl, R2, R3 are as above defined and R5 is a protecting group characteristic of the carboxylic group of n9~ c as methyl, ethyl, t-butyl, benzyl, trimethylsilyl, the hydrolysis of the compound of formula (IX) can be carried out following the ~nown methods and processes of the organic chemistry as for example reported in T. W. Greene Protective groups in Organic Synthesis Wiley Interscience Pu~li cnti on 1981.
A compound of formula (IX) wherein A, m, Rl, R2 R3 and R5 are ~c above defined, can be prepared by rescting a ~ d of foL 1~
(VIII) wherein A, m, Rl and R2 are as above defined or its reactive derivative with a compound of fo. 1l ~ (X) H2N-CH(R3)-COORs (X) wherein R3 and R5 have the above defined -~nin~, A reactive compound of an acid of formula (VIII) can be the same already reported in the present application for the compound of formula (III) or for the compound of formula (VII) and the reaction can be accomplished under similar conditions to those reported for the amidation reaction of a compound of formula (III) or a compound of formula (VII) with a compound of formula (IV).
The compounds of formula (X) either are commercially available or can be prepared by the conventional processes starting from the - corresponding aminoacids as described for example in E. Gross, J.
Meienhofer, The Peptides V. 3, p. 102-132, 1981. .~c~ ;c Press.

W O 94/20463 ~ PCT~EP94/00557 ; 14 In the process (a') a compound of formula (V) wherein B is a chemical bond snd m, A, R1 snd R2 are as above defined, nsmely compounds of formula (XI) Rl~
N-A-(CH2)m-NH2 (XI) either are commercially available or are prepared by the conventional processes of the organic chemistry as ,-e~o,-ted for example in J. Med. Chem. 33, 112 (199O).
In the process (a') a compound of fo. -l~ (V) wherein B is the group -NHCOCH(R3) wherein m, A, R1, R2 and R3 are as above defined, can be prepared by hydrolysis of the c ,_ ~ of formula (XII) N-A-(cH2)m-NH-co-cH(R3)-NHR6 (XII) wherein A, m, R1, R2, R3 are as above defined and R6 is a protecting group characteristic of the smino group of ~mino~ c as trifluoroacetyl, benzyloxycsrbonyl. tertbutyloxycarbonyl, 9-fluorenylmethyloxycarbonyl and trityl, the hydrolysis of the compound of formula (XII) can be carried out following the methods and processes known in the organic chemistry as for example reported in T. W. Greene Protective group in Organic Synthesis 94/20463 ~ PCT~EP94100557 -, Wiley Interscience Publication 1981.
A compound having formula (XII) wherein A, m, R1, R2, R3 and R6 are as above defined can be prepared by reacting a compound of fG. 1 (XI) wherein A, m, R1 and R2 are as above defined, with a c _ of formula (XIII) Hooc-cH(R3)-NHR6 (XIII) wherein R3 and R6 are as above defined, or with its reactive derivative.
A reactive derivative of an acid of formula (XIII) can be the same as reported in this application for the compound having fo~
(III) or for the compound having formula (VII) and the reaction can be carried out under similar conditions to those reported for the amidation reaction of a compound of fo. 1~ (III) or a c .- ~ of formula (VII) with a compound of fo, l~ (IV).
The compounds of formula (XIII) either are commercially avAil~hle or are prepared by conventional procedures, startin~ from aminoacids as described for example in E. Gross, J. ~ei~nhofer, The Peptides V. 3, p. 102-132, 1981, Ac~ ic Press.
In the process (b), a compound of formula (VII) wherein m, A, X, R1 and R2 are as above defined, can be prepared as described in the ZO International Patent applicstion No. WO 93/13739 published on 22nd July 1993 in the name of the same applicant and herein reported by reference.

WO 94/20463 ~ PCT~EP94/00557 ~ ~ 16 In the processes (a) and (b) a compound of formula (IV) either is a commercially av~ h]e compound or can be prepared by the known methods tGazzetta Chimica It~ n~ 99, 632 (1969)].
In the process (a') a compound of fo. -lA (VI) can be prepared according to the methods described in the International Patent application No. W0 93/13739 p-~hl i che~ on 22nd July 1993 in the name of the same applicant and herein reported by reference.
The compounds of the present invention have antitumoral and antiviral activity, in particular they show high cytotoxicity levels against the tumoral cel 1~ r lines.
Moreover the present invention relates to pharmaceutical c~,~sitions comprising as active principle a compound of general for .l~ (I) or a pharmaceutically acceptable salt thereof with a pha.- --eutically acceptable vehicle or ~il u~n t .
A therapeutically effective amount of the compound of formula (I) according to the invention is combined with an inert and pharmaceutically acceptable vehicle. Conventional vehic~es can be used and the ~ .itions can be prepared using the conventional techniques. The compounds according to the present invention are useful for human and animal therapeutical treatment.
In particular, the compounds according to the present invention are useful as antitumoral and / or antiviral agents when ~i ni ctered to patients in a therapeutically effective amount, for example a suitable dosage for the a~in; ctation to adult patients can vary 25 from about O.1 and 100 mg per unitary dose from one to 4 times a 94l204C3 , PCTAEP94/00557 day.

3-[1-Methyl-4-tl-methyl-4-[1-methyl-4-[1-methyl-4-t4-[N,N-bis(2-chloroethyl)amino]benzenbut~n~ ;~n]pyrrol-2-c & ~o~y do]pyrrol-2-cal~o~y i~o]pyrrol-2-carbo~n~ido]pyrrol-2-ca~ y do]propiona-midine hydrochlorate (I, X ~ -CONH-, A = p-phenylene, B z O m = 3, n = 2, Rl = R2 = 2-chloroethyl).
4-[Bis(2-chloroethyl)amino~b~ 7~Pbutanoylchloride (801 mg, 2.49 mmoles), (obt~ined by the correspon~ing ca~Lo~ylic acid VIII, (A =
p-phenylene, m = 3, R1 = R2 = 2-chloroethyl) (75O mg, 2.49 mmoles) by treatment with SOCl2 (1.2 ml) in tetrahydrofuran (25 ml) under reflux), are ~iscolved in 25 ml anhydrous tetrahydrofuran and added to a solution of 3-[1-Methyl-4-[1-methyl-4-~1-methyl-4-(1-methyl-4-aminopyrrole-2-carboxyamido)pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propionamidine hydrochlorate tIV, p = 4) (327 mg, 0.51 mmoles), [Gazzetta Chimica It~ n~, 99, 632 (1969)] and sodium bicarbonate (90 mg, 1.11 mmoles) in 40 ml water.
~fter one hour stirring st room temperature, the reaction mixture is evaporated to dryness and the residue is separated by chromatography on silica gel (eluent CHC13/MeOH 7/3) thus obt~in;ne 276 mg I (X = -CONH-, A = p-phenylene, B = O, m = 3, n = 2, R1 = R2 = 2-chloroethyl) (yield 60 %).

-W O 94/20463 PCT~EW4/00557 H-NMR (DMS0-d6), d : 1.82 (m, 2H), 2.25 (t, 2H), 2.45 (t, 2H), 2.64 (t, 2H), 3.50 (m, 2H), 3.70 (s, 8H), 3.82 (s, 3H), 3.85 (s, 3H), 3.86 (s, 3H), 3.87 (s, 3H), 6.69 (d, 2H), 6.90 (d, lH), 6.97 (d, lH), 7.04 (d, 2H), 7.08 (bs, 2H), 7.15 (d, lH), 7.18 (d, lH), 7.22 (bs, 2H). 8.19 (t, lH), 8.57 (bs,2H), 8.95 (bs, 2H), 9.76 (s,lH), 9.90 (m,3H)-The following compound of formula (I) is also obtained by an analogous proce~s:
3-~l-Methyl-4-tl-methyl-4-[4-~N,N-bis(2-chloroethyl)amino]be but~nFImido]pyrrol-2-ca.bu~.y do]pyrrol-2-caLLo~y r~n] propiona-midine hydrochlorate (I, X - -CONH-, A = p-phenylene, B = 0, m ~ 3, n ~ O, Rl ~ R2 = 2-chloroethyl).
lH-NMR (DMS0-d6), d : 1.80 (m, 2H), 2.24 (t, 2H), 2.50 (t, 2H), 2.62 (t, 2H), 3.50 (m, 2H), 3.70 (s, 8H), 3.81 (s, 3H), 3.83 (s, 3H), 6.68 (d, 2H), 6.87 (d, lH), 6.92 (d, lH), 7.04 (d, 2H), 7.13 (d, lH), 7.16 (d, lH), 8.18 (t, lH), 8.65 (bs, 2H), 8.94 (bs, 2H), 9.75 (s, lH), 9.83 (s, lH).

3-rl-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl~amino3benzen~ i~ocarbonyl]pyrrol-2-caL-bo~y -ido]pyrrol-2-carboxyamido]pyrrol-Z-carboxyamido]pyrrol-2-carbo~y ido] propio-namidine hydrochlorate (I, X = -NHC0-, A = p-phenylene, B z 0, m = 0, n = 2, Rl = R2 = 2-~ 0 94/20463 , I 8 7 PCT~EPg4/00557 chloroethyl).
(337 mg, o.84 mmoles) of 1-Methyl-4-~4-[N,N-bis(2-chloroethyl)-amino]b~n~nPminocarbonyl] pyrrol-2-c~,~ohylic acid chloride (VII, A = p-phenylene, X = -NHCO-, m - O, Rl = R2 = 2-chloroethyl), (obtained by treatment of the carboxylic acid VII (A ~ p-phenylene, X = -NHCO-, m = O, Rl = R2 = 2-chloroethyl) (322 mg, o.84 l~) with SOC12 (4.2 mmoles) ~i~solved in CH2C12 and in the pr~nre of dimethylfor de), are dissolved in 10 ml tetrahydrofursn and added to a mixture of N-deformyldystamicine (221 mg, 0.42 mmoles) 10 and diisopropylethylamine (0.3 ml, 2.1 mmoles) in anhydrous EtOH (5 ml) .
The mixture is maintained 30 minutes under stirring at room t~ ture, then ethylacetate is added up to the precipitation of the raw product, which after separation by HPLC (H20/CH3CN/CF3COOH
15 56/44/0.1) gives 162 mg of I (X = -NHCO-, A = p-phenylene, B = O, m = O, n = 2, Rl = R2 = 2-chloroethyl), (yield 45 %).
H-NMR (DMSO-d6), d : 2.60 (t, 2H), 3.50 (m, 2H), 3.70 (s. 8H), 3.81 (s, 3H), 3.86 (s, 3H), 3.88 (s, 3H), 3.92 (s, 3H), 6.74 (d, 2H), 6.96 (d, lH), 7.08 (s, 2H), 7.18 20 (d, 2H), 7.25 (d, lH), 7.28 (d, lH), 7.42 (d, lH), 7.54 (d, 2H), 7.69 (d, lH), 8.17 (t, lH), 8.50 (bs, 2H), 8.59 (bs, 2H), 9.49 (s, lH), 9.88 (s, lH), 9.94 (s, lH), 10.09 (s, lH)-The following compound of formula (I) is also obtained by an WO 94/20463 PCT~EP9S/00557 ~ 20 analogous process:
3~ Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]b~n7Pnr 'noc~rbonyl]pyrrol-2-c~ y do]pyrrol-2-ca~bo~y ~o]pyrrol-2-carbo~y~ido]pyrrol-2-5 C&~o~y ~o]pyrrol-2-car~y~ido] propionr ~ine hydrochlorate (I, X = -NHC0-, A = p-phenylene, B = O, m = O, n = 3, Rl = R2 = 2-chloroethyl).

H-NMR (DMS0-d6), d : 2.60 (t, 2H), 3.50 (m, 2H), 3.70 (s. 8H), 3-81 (s, 3H), 3.85 (s, 3H). 3.87 (s, 6H), 3-92 10 (s, 3H), 6.72 (d, 2H), 6.95 (d, lH), 7.07 (m, 3H), 7.16 (d, lH), 7.21 (d, lH), 7.23 (d, lH), 7.26 (d, lH), 7.41(d, lH), 7.52 (d, 2H), 7.68 (d, lH), 8.18 (t, lH), 8.47 (bs, 2H), 8.89 (bs, 2H), 9.48 (s, lH), 9.88 (s, lH) 9.90 (s, lH), 9.93 (s, lH), 10.09 (s, lH) N-[4-~N,N-bis(2-chloroethyl)amino]benzoyl]glycine (III, A = p-phenylene, m = 0, Rl = R2 = 2-chloroethyl, B = -CONHCH(R3)-, R3 =
H) A mixture composed by glycine (600 mg, 8 mmoles), 20 bis(trimethylsilyl)acetamide (3.25 g, 16 mmoles), and trimethylsilylchloride (0.2 ml, 1.6 mmoles) in CH2Cl2 (20 ml) is kept under reflux for 2 hours.
After cooling to room temperature, (3 g, 10.8 mmoles) of 4-[N,N-bis(2-chloroethyl)amino]benzoylchloride are added to the reaction ~0 94/20463 1S7187 PCT/EP94/00557 mixture, which is maintained under stirring at 40 C.
After 2 hours, the mixture is acidified with lN HCl and extracted with CH2C12; the organic extracts are coll ected and extracted on their turn with an aqueous solution of NaHC03, and the basic phase, 5 after acidification with lN HCl i~ extracted with CH2Cl2 thus obt~;nine after evaporation of the organic phase, 1.32 g of III (A
= p-phenylene, m = O, R1 = R2 = 2-chloroethyl. B = -CONHCH(R3)-, R3 = H), (yield 52 ,X) lH-NMR (DMSO-d6), d: 3.78 (m, 8H), 3.88 (d. 2H), 6.78 10 (d, 2H). 7.72 (d. 2H), 8.46 (t. lH).
BAI~LE 4 3-[1-Methyl-4-~1-methyl-4-[1-methyl-4-[N,a-[4-[N,N-bis(2-chloroethyl)amino]benzoyl]glycylamino]pyrrol-2-ca~l~o~y 'do]pyrrol-2-carl~o~y ~o]pyrrol-2-cE~ G~y do]propion~ 13in~ hydrochlorate 15 (I, X = -CONH-, A ~ p-phenylene, B z -CO~;n(R3)-, R3 = H, m = O, n 1, R1 = R2 = 2-chloroethyl).
308 mg (0.58 mmoles) N-deformyldystamicine, 136 mg (1 mmole) N-hydroxybenzotriazole (HOBT), 182 mg (0.85) mmoles 1,8-bis-(dimethylamino)-naphthalene and 191 mg (0.11 mmoles) [1-(3-20 dimethylaminopropyl)-3-ethylcarbodiimide ( EDC ) are added to a solution of 270 mg, (0.85 mmoles) III (A = p-phenylene, m = O, R1 =
R2 = 2-chloroethyl, B = -CONHCH(R3) -, R3 = H ), prepared as described in example 3 and dissolved in anhydrous dimethylformamide (45 ml).
25 The reaction mixture is maintained under stirring at room WO 94/20463 PCT~EP94/00557 temperature for one hour, then ethylacetate is added up to precipitation o~ the raw product, which after chromatography on silica gel (eluent CH2Cl2/anhydrous EtOH/H2O 65/35/2) gives 275 mg of I (X - -CONH-, A = p-phenylene, B ~ -CONHCH(R3)-, R3 ~ H, m - O.
n = 1. Rl = R2 = 2-chloroethyl) (yleld 60 %) H-NMR (DMSO-d6), d : 2.64 (t, 2H), 3.50 (m, 2H), 3.78 (s, 8H), 3.82 (s, 3H), 3.84 (s, 6H), 3.97 (d, 2H), 6.78 (d, 2H), 6.91 (s. 2H), 7.O4 (d. lH), 7.14 (d, lH), 7.18 (d. lH), 7.21 (d, lH), 7.78 (d, 2H), 8.21 (t, lH), 8.52 (t, lH), 8.78 (bs, 2H), 9.O4 (bs, 2H), 9.89 (s, 2H), 9.95 (8, lH).

Claims (15)

1 1. Compounds of general formula (I) (I) and their pharmaceutically acceptable salts wherein :
n is 0 or an integer ranging from 1 to 4 m is 0 or an integer ranging from 1 to 4 A is selected from a group consisting of cyclohexyl, p-phenylene, 1-methylpyrrole, thiophene, thiazole, imidazole, furan, isoxazole, oxazole, triazole, pyridine, pyrrole;
B is selected from the group consisting of : simple chemical bond, -CO-NH-CH(R3)-, -NH-CO-CH(R3)- wherein R3 is H or the side chain of a natural alpha-aminocarboxylic acid X is selected from the group consisting of : -NHCO-, -CONH- and wherein :
i) R1 and R2 are equal and are selected from the group consisting of: oxiranomethyl, 1-aziridinomethyl, C2-4 alkyl optionally substituted in position 2 with a -OH, C2-4 alkoxy, halogen or -OSO2R4 group wherein R4 is selected from the group consisting of C1-4 alkyl or phenyl or ii) R1 = H and R2 is as above described provided that :
when B = chemical bond, n is different from 1 when X = -CONH-, B = simple chemical bond, m is different from O
when B = -CO-NH-CH(R3)- X is different from -NHCO-when B = -NH-CO-CH(R3)- X is different from -CONH-
2. The compounds as claimed in claim 1 wherein:
n is as above defined m is zero or an integer comprised between 1 and 3 A is as above identified B is a simple chemical bond, or when it is a -CO-NH-CH(R3)- group or a -NH-CO-CH(R3)- group, R3 is preferably methyl, isobuthyl, sec-buthyl, hydroxymethyl, mercaptomethyl, carbamoylmethyl, benzyl, 4-hydroxybenzyl, 5-imidazolylmethyl, 2-carbamoylethyl, 2-methylthioethyl, 1-hydroxyethyl, 3-guanidinopropyl, 4-aminobutyl R1 and R2 represent preferably an ethyl group, 2-hydroxyethyl, 2-chloroethyl, methansulfonylethyl.
3. The compounds of formula (I) as claimed in claim 2. selected from the group consisting of:
3-[1-Methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzene-aminocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propiona-midine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl) amino]benzeneaminocarbonyl]-pyrrol-2-carboxyamido]
pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]
propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzeneaminocarbonyl]pyrrol-2 carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2 carboxyamido] pyrrol-2-carboxyamido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzene butanamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propiona-midine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)-amino]benzenebutanamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido] propio-namidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[N,N-bis(2-chloroethyl)amino]benzenebutanamido]pyrrol-2-carboxyamido]
pyrrol-2-carboxyamido]pyrrol-2-carboxyamido] pyrrol-2-carboxyamido]
pyrrol-2-carboxyamido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[4[N,N-bis(2-chloroethyl)amino]benzyl-amino carbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propio-namidine hydrochlorate;

3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2 chloroethylamino)benzylaminocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propiona-midine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[2-[4-[N,N-bis(2-chloroethyl)amino) phenyl] ethanaminocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxya-mido] propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[2-[4-[N,N-bis (2-chloroethyl) amino]phenyl]ethanaminocarbonyl]pyrrol-2-carboxya-mido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[3-[4-[N,N-bis(2-chloroethyl)amino]
phenyl]propylaminocarbonyl]pyrrol-2-carboxypyrrol-2-carboxya-mido] propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[3-[4-[N,N-bis(2-chloroethyl)amino]phenyl]propylaminocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido] propionamidine hydrochlorate;
3-[1-methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[3-[4-[N,N-bis(2-chloroethyl)amino]phenyl]propylaminocarbonyl]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzyl carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propio-namidine hydrochlorate;

3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[4-[N,N-bis(2-chloroethyl)amino]benzylcarboxyamido]pyrrol-2-carboxyamodo]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]
propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[2-[4-[N,N-bis(2-chloroethyl)amino]
phenyl]ethylcarboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxy-amido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[2-[4-[N,N-bis (2-chloroethyl)amino]phenyl]ethylcarboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[N,a-[4-[N,N-bis(2-chloro-ethyl)amino]benzoyl]glycylamino]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propionamidine hydrochlorate;
3-[1-Methyl-4-[1-methyl-4-[1-methyl-4-[1-methyl-4-[N,a-[4-[N,N-bis(2-chloroethyl)amino]benzoyl]glycylamino]-pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]pyrrol-2-carboxyamido]propionamidine hydrochlorate;
4. Compounds of formula (VI) (VI) wherein p is an integer comprised between 3 and 6.
5. Compounds of formuls (IX) wherein A, m, R1, R2, R3 and R5 are as claimed in claims 1) and 2).
6. Compounds of formula (XII) wherein A, m, R1, R2, R3 and R6 are as claimed in claims 1) and 2).
7. A process for the prepsration of compounds of formula (I) (I) wherein:
n is 0 or an integer ranging from 1 to 4 m is 0 or an integer ranging from 1 to 4 A is selected from the group consisting of cyclohexyl, p-phenylene, 1-methylpyrrole, thiophene, thiazole, imidazole, furan, isoxazole, oxazole, triazole, pyridine, pyrrole;
B is selected from the group consisting of : simple chemical bond, -CO-NH-CH(R3)-, -NH-CO-CH(R3)- wherein R3 is H or the side chain of a natural alpha-aminocarboxylic acid X is selected from the group consisting of : -NHCO-, -CONH- and wherein :
i) R1 and R2 are equal and are selected from the group consisting of: oxiranomethyl, 1-aziridinomethyl, C2-4 alkyl optionally substituted in position 2 with a OH, C2-4 alkoxy, halogen or -OSO2R4 group wherein R4 is selected from the group consisting of C1-4 alkyl or phenyl or ii) R1 = H and R2 is as above described provided that :
when B = chemical bond, n is different from 1 when X = -CONH-, B = simple chemical bond, m is different from 0 when B = -CO-NH-CH(R3)- X is different from -NHCO-when B = -NH-CO-CH(R3)- X is different from -CONH-comprising reacting the compound of formula (III), wherein A, m, B, R1 and R2 are as above defined, with a compound of formula (IV) (IV) wherein p is an integer comprised between 2 and 6.
8. A process for the preparation of compounds of formula (I) (I) wherein:
B is a simple chemical bond or a -NH-CO-CH(R3)- group, X is the -NHCO- group and m, n, R1, R2 and R3 are as claimed in claim 7), provided that, if B is a chemical bond n is different from 1;
comprising reacting the compound of formula (V) (V) wherein A, B, m, R1 and R2 are as above defined, with a compound of formula (VI) (VI) wherein p is an integer comprised between 2 and 6.
9. A process for the preparation of the compounds of formula (I) (I) wherein:
B is a simple chemical bond X represent the -NHCO- group or the -CONH- group and m, n, A, R1 and R2 are defined in claim 7), provided that:
if B is a chemical bond, n is different from 1;
if X is -CONH- and contemporaneously B is a chemical bond and m is equal to zero, n is different from zero;
comprising reacting the compound of formula (VII) (VII) wherein A, X, m, R1 and R2 are as above defined, with a compound of formula (IV) (IV) wherein p is an integer comprised between 1 and 5.
10. Use of compounds as claimed in claims 1-3 for the preparation of pharmaceutical compositions.
11. Pharmaceutical compositions containing as active principle a compound as claimed in claim 1 in combination with a pharmaceutically acceptable vehicle or diluent.
12. The pharmaceutical compositions as claimed in claim 11 as antitumoral agents.
13. The pharmaceutical compositions as claimed in claim 11 as antiviral agents.
14. A therapeutic method for the treatment of tumoral affections comprising administering to patients, from 1 to 4 times a day, pharmaceutical compositions containing as active ingredient a compound as claimed in claim 1, in an amount ranging from 0.1 to 100 mg per unitary dose in a pharmaceutically acceptable diluent or vehicle.
15. A therapeutic method for the treatment of viral affections comprising administering to patients, from 1 to 4 times a day, pharmaceutical compositions containing as active ingredient a compound as claimed in claim 1, in an amount ranging from 0.1 to 100 mg per unitary dose in a pharmaceutically acceptable diluent or vehicle.
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