MXPA97010172A - Derivatives of anti-ischemic hydroxylamine and pharmaceutical compositions - Google Patents

Derivatives of anti-ischemic hydroxylamine and pharmaceutical compositions

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Publication number
MXPA97010172A
MXPA97010172A MXPA/A/1997/010172A MX9710172A MXPA97010172A MX PA97010172 A MXPA97010172 A MX PA97010172A MX 9710172 A MX9710172 A MX 9710172A MX PA97010172 A MXPA97010172 A MX PA97010172A
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Mexico
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general formula
compound
formula
alkyl
defined above
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MXPA/A/1997/010172A
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Spanish (es)
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MX9710172A (en
Inventor
Barabas Mihaly
Urogdi Laszlo
Jednakovits Andrea
Marvanyos Ede
Jaszlits Laszlo
Biro Katalin
Radvanyne Hegedus Erzsebet
Kurthy Maria
Udvardy Nagy Istvanne
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Biorex Kutato Es Fejlesztoe Rt
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Priority claimed from HU9501756A external-priority patent/HU218480B/en
Application filed by Biorex Kutato Es Fejlesztoe Rt filed Critical Biorex Kutato Es Fejlesztoe Rt
Publication of MX9710172A publication Critical patent/MX9710172A/en
Publication of MXPA97010172A publication Critical patent/MXPA97010172A/en

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Abstract

The invention relates to novel hydroxylamine derivatives represented by the general formula (I), the pharmaceutically acceptable addition salts of the same and the pharmaceutical compositions containing them as an active ingredient. Another object of the invention is the preparation of the hydroxylamine derivatives and salts thereof. The compounds according to the invention have anti-ischemic effect. In the above formula, (I) X is O, -NH or a group of the formula -NR-, wherein R and Rï, independently of one another, are alkyl, cycloalkyl, phenylalkyl, a phenyl group optionally substituted with halo, haloalkyl, alkyl, alkoxy or nitro, or a hetero ring containing N; Rûes H or alkanoyl; Rýes H or hydroxy optionally acylated with alkanoyl; and Rües a group of the formula -N (R 4) R 5 wherein R 4 and R 5, independently one on the other, it can be H, alkyl or a group of the formula -C (O) -NH-R wherein R is as defined above, or R4 and R5, when taken together with the adjacent nitrogen attached thereto, from a Hereroanillo of 5 to 7 member which may contain an additional heteroatom selected from nitrogen, oxygen and sulfur and which is optionally substituted with phenylalkyl

Description

HYDROXYLAMINE DERIVATIVES ANTI-ISQUÉMICOS AND PHARMACEUTICAL COMPOSITIONS Technical Field The invention relates to novel hydroxylamine derivatives represented by the general formula (I), O // R-X-C \ N-0-CH2-CH-CH2-R3 (I) R1 R2 the pharmaceutically acceptable acid addition salts thereof as well as the pharmaceutical compositions containing them as an active ingredient. Another object of the invention is the preparation of hydroxylamine derivatives and salts thereof. The compounds according to the invention have anti-ischemic effect. Previous Technique In C.A. 67: 6886, 7321g and C.A. 113: 674 and 17169K have been described compounds of similar structure having effect of diminishing cholesterol level. Description of the Invention One objective of the present invention is the group of hydroxylamine derivatives represented by the general formula (I) and the pharmaceutically acceptable acid addition salts thereof. In the above formula X is O, -NH or a group of the formula -NR'-, wherein R and R ', independently of one another, are alkyl, cycloalkyl, phenylalkyl; a phenyl group optionally substituted with halo, haloalkyl, alkyl, alkoxy or nitro; or a hetero ring containing N, R1 is H or alkanoyl, R2 is H or hydroxy optionally acylated with alkanoyl, and R3 is a group of the formula -N (R4) RS wherein R4 and R5, independently of each other, can be H, alkyl or a group of the formula -C (0) -NH-R wherein R is as defined above, or R4 and R5, when taken together with the adjacent nitrogen attached thereto, form a hetero ring of 5 to 7 members which may contain an additional heteroatom selected from nitrogen, oxygen and sulfur and which is optionally substituted with an alkyl or phenylalkyl. Another object of the invention is a pharmaceutical composition containing at least one of the compounds of the general formula (I) or the pharmaceutically active acid addition salt thereof as the active ingredient. Still another object of the invention is a plurality of processes for preparing the compounds of the general formula (I) and the pharmaceutically acceptable acid addition salts thereof. Although these compounds can be prepared by any process known in the art by preparing compounds of similar structure, the most favorable methods for obtaining them include the following: a) To prepare compounds of the general formula (I) wherein Z is O, (i) ) a compound of the general formula (II) H2N-O-CH2-CH-CH2-R3 (II) k- Wherein R2 and R3 are as defined above, they were reacted with a compound of the general formula (III) OR II R-O-C (lll) \ Y Where R is as defined above and Y is halo or azido, or ii) a compound of the general formula (VI) O // ROC (VI) \ NH-OH It is reacted with a compound of the general formula (VII) ) Y-CH2-CH-CH2-R3 l 2 R2 (VII) iii) a compound of the general formula (VI) is reacted with a compound of the general formula (VIII) CH2-CH-CH2-R3 (VIII) iv) a compound of the general formula (VI) is reacted with a compound of the general formula (IX) CH2-CH-CH2-Y (IX) / O and subsequently with a compound of the formula R3H, wherein the formulas (VI), (VII), (VIII) and (IX) R, R2 and R3 are as defined above and Y is halo, b) to prepare compounds of the general formula (I) wherein X is -NH -, a compound of the general formula (II) in which R2 and R3 are as defined above, are reacted with a compound of the formula (IV) or (IVa) R_N = C = 0 (IV) O // R -NH-C (Iva) \ Y Where R is as defined above and Y is halo, or c) to prepare compounds of the general formula (I) wherein X is -NH- or NR'-, a compound of the general formula (X) O II Z-0-CN-0-CH 2 -CH-CH 2 -R 3 (X) II R 1 R 2 wherein R 1, R 2 and R 3 are as defined above and Z is alkyl, aralkyl or optionally substituted aryl, is reacted with a composed of the general formula RNH2 or RR'NH, wherein R and R 'are as defined above, or d) to prepare compounds of the general formula (I) wherein X is -NH-, R3 is -N (R4) R5, R4 is alkyl and R5 is -C (0) -NH-R, i) a compound of the formula (II) wherein R3 is -N (R4) R5, R4 is alkyl, R5 is H and R2 is as defined above, is reacted with an excess of a compound of the formula (IV) or (Iva) wherein R is as defined above and Y is halo, or ii) a compound of the general formula (I) wherein R 3 is -N (R 4) R 5, R 4 is alkyl, R 5 is H and R 2 is as defined above, is reacted with an excess of a compound of the formula ( IV) or (Iva) wherein R is as defined above and Y is halo, oe) to prepare compounds of the general formula (I) wherein X is -NR'-, a compound of the general formula (II) is it reacts with a compound of the general formula (V) R '0 \ II N - C (V) / \ RY where R, R'. R2 and R3 are as specified above and Y is halo, and if desired, a compound of the general formula (I) is transformed into its acid addition salt, or if desired, a compound of the general formula (I) where R1 is H and R2 is hydroxy, it was transformed into a compound of the general formula (I) wherein R2 is acyloxy or R1 is acyl and R2 is acyloxy, optionally followed by the formation of salt. BEST MODE FOR CARRYING OUT THE INVENTION The preferred representatives of the different defined groups are as follows: The alkyl groups and the alkyl portions of the alkanoyl groups mentioned in the specification may be straight or branched chain, lower or longer alkyl portions. The alkyl group, either alone or forming part of any of the above groups, can preferably contain from 1 to 12 carbon atoms. Preferably the number of carbon atoms is from 1 to 8. Examples of said group include, among others, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, secbutyl, pentyl, hexyl, heptyl, octyl and the isomers thereof. Alkyl groups with 1 to 6 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, secbutyl, pentyl, terpentyl and hexyl are preferred. Preferred longer alkyl groups contain from 9 to 21 carbon atoms such as iso-, n-nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl and heneicosyl and the like; more preferably C9-17 alkyl groups such as iso- or n-nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl and heptadecyl. The cycloalkyl group preferably contains from 3 to 6, more preferably from 5 to 7 carbon atoms. Said groups are e.g., cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl and the like; more preferred are C3-7 cycloalkyl groups, such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl. The heteroaromatic ring containing N is preferably a 3- to 8-membered, preferably 5- or 6-membered, heteromonocyclic group which is unsaturated and contains 1 to 4 nitrogen atoms. Said groups are e.g., pyrrolyl, imidazolyl, pyrazolyl, pyridyl or the N-oxide thereof, pyridimyl, pyrazinyl, pyridazinyl, triazolyl, tetrazolyl, triazinyl or the like; or it may be a condensed cyclic hetero group containing from 1 to 5 nitrogen atoms, such as indolyl, isoindolyl, indosinyl, benzoimidazolyl, quinolyl, isoquinolyl, indazolyl, benzotriazolyl, cinolyl, phthalisinyl, quinazolinyl, quinoxalinyl, purinyl, pteridinyl, quinolizinyl, naphthyridinyl and the like. The 5 to 7 membered unsaturated heterocyclic groups may also contain a nitrogen or an additional nitrogen, oxygen or sulfur atom or atoms. These groups are preferably aziridinyl, azetidinyl, oxaziridinyl, oxazolidinyl, thiazole, idinyl, pyrrolidinyl, imidazolidinyl, piolyl idylil, perhydrothiazolyl, perhydroisoxalolyl, piperidinyl, pyperazinyl, perihydropyrimidinyl, morpholinyl, thiomorpholinyl, perhydro-1H-azepinyl and the like. The alkanoyl group may contain both lower and higher chains and preferably it may be alkyl dicarbonyl preferably of C6-6, preferably C1-4, eg, acetyl, propanoyl or the like, or the acyl group of a higher fatty acid, preferably C? 2-? 8- R4 and R5 together with the adjacent nitrogen atom preferably form saturated heterocyclic groups, e.g., pyrrolidino, oxazolidino, thiazolidino, piperidino, morpholino, piperazino, thiomorpholino, azepino and the like.
According to process a), the carbamates of the general formula (I) wherein X is O are prepared by reacting the appropriate starting materials. The reaction according to process a), variant i) is preferably carried out in an inert organic solvent, at about 0 ° C, while the other variants are preferably carried out at elevated temperatures. According to process b) the ureas of the general formula (I) wherein X is -NH- is prepared by reacting the corresponding compounds of the formulas (II) and (IV) or (Iva) wherein R is as Defined before and Y is halo. The reaction is preferably carried out in an inert organic solvent at room temperature. According to process c), the compounds of the general formula (I) wherein X is -NH- or -NR- are prepared by reacting the compounds of the formula (X) and an amine of the formula RNH2 or RR ' NH The reaction is preferably carried out in an inert organic solvent at an elevated temperature. According to process d) the ureas of the general formula (I) wherein X is -NH- are prepared wherein R3 is -N (R4) R5 and R4 is alkyl and R5 is a group of the formula C (0) ) -NHR. In this reaction, a compound of the formula (II) wherein R4 is alkyl and R5 is H, is used as a starting material wherein 1 mole of the material is reacted with at least two moles of the compounds of the general formulas (IV) or (Iva). The reaction is preferably carried out in an organic solvent at room temperature. According to process d), the ureas of the general formula (I) wherein X is -NR'- are prepared by reacting the corresponding compounds of the formulas (II) and (IV) wherein R is as defined above . The reaction is preferably carried out in an inert organic solvent, at room temperature. If desired, a compound of the general formula (I) can be converted to the monoacylated (R = acyloxy) or diacylated derivative (R1 = acyl, R2 = acyloxy). The acylation is preferably carried out with a corresponding derivative of aliphatic carboxylic acids of C2-8 suitable acylation capable. The pharmaceutically acceptable salts of the compounds of the general formula (I) can be those formed with organic and inorganic salts. The compounds according to the invention have anti-ischemic effect. The reperfusion-induced arrhythmia (ventricular tachycardia, KT and ventricular fibrillation, KF) was tested in anesthetized rats. Myocardial ischemia was induced by pressing the coronary artery for 5 minutes followed by 10 minutes of reperfusion of the heart. The ECG was monitored permanently and the change in the mean period of KT and KF due to the effect of active materials was measured in the first 3 minutes of reperfusion. Survival was also monitored. The compounds were administered i.v. 5 minutes before pressing the coronary artery LAD at a dose of 1 mg / kg. The experimental results obtained by administering some representative compounds of the invention are listed below: Example No. 4 5 6 7 15 16 23 Control not treated Survival% 67 67 100 86 60 83 80 0 The vasorelaxant effect of the compounds of the invention was tested in vitro in rabbit thoracic aorta isolated according to Am. J. Physiol. 257:, 1327-1333 (1989). The aggregation-inhibiting effect was demonstrated in blood samples from the vein obtained from human patients. To the samples, sodium citrate was added and 10 minutes later it was centrifuged at 1000 rpm. In the platelet-rich preparations thus obtained platelet aggregation was induced by the addition of ADP (control) while different concentrations of the test compounds were added to the preparations before ADP addition, the dose-effect curve was demonstrated and determined concentrations inhibited aggregation by 50% (ED50). The experimental results obtained by the addition of some representative compounds of the invention are listed below: (1) Beppdyl [Eur J Pharm 166 (1989) 241-49] (2) Molsidornin (Takeda) The invention is illustrated more in detail by the following examples. However, the examples serve only to provide more information about the invention and not They limit in some way the scope of the protection to the same Example 1 N-phen? lN, - (2-h? drox? -3-p? per? d? no-propox?) - urea 0- (2-h drox? -3-p? per? d? no-prop? l) -h? drox? lam? na (1 74 g, 001 moles) were dissolved in 4 ml of chloroform and 09 ml (001 moles) of Phenyl isocyanate was added thereto while stirring. The reaction was monitored by chromatography. After the reaction was complete, the solution was evaporated and the oily residue was purified by column chromatography. The oil thus obtained was crystallized from diethyl ether Yield 06 g (20 g). %) Mp 101-103 ° C IR (KBr) 3288, 2935, 2678 1601, 1551, 1501, 1448 1333, 1250, 1094, 1038, 903, 866, 754, 694 cm "1 1 H-NMR (CDCU): 8.95 (1H, br, s, CONHO); 8.5-7.6 (1H, br, s, NHCONHO); 7.55 (2x1H, t, J = 7.3 Hz), 7.27 (2x1H, t) and 7.05 (1H, t, J = 7.3 Hz) (phenyl o-m-p); 4.05 (1H, m, CH-OH); 3.96-3.77 (1H, dd, J = 11.1 y = 2.4 Hz; 1H, dd, J = 11.1 y = 7.6 Hz, OCH2); 2.7-2.2 (6H, m), 1.55 (4H, m) and 1.46 (2H, m) (piperidine). 13 C-NMR (CDCl 3): 158.5 (s, C = O); 138.2 (s), 128.8 (d), 119.3 (d) is 123.2 (d) (phenyl i-o-m-p); 79.4 (t, OCH2); 64.0 (d, CH-OH); 59.8 (t, CH-CH2-N); 54.5 (t), 25.8 (t) and 24.0 (t) (piperidine) Analysis: C15H23N3? 3 »0.5 H20: Calculated: C 59.0%, H 7.5%, N 14.0%; Found: C 59.6%, H 7.9%, N 13.9% Example 2: N- (2-hydroxy-3-piperidino-propoxy) -ethyl ester carbamate 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine was dissolved. (1.74 g, 0.01 mol) was dissolved in 40 ml of chloroform under stirring and 0.95 ml (0.01 mol) of ethyl chloroformate in 10 ml of chloroform were added thereto by dripping at 0 ° C. After 1 hour, the reaction mixture was washed with 40 ml of 10% sodium carbonate solution and the organic layer was dried over magnesium sulfate. After filtering and evaporating, the crude product thus obtained was purified by column chromatography. The oil thus obtained was crystallized from ether. Yield: 0.75 g (30%). Mp: 108-110 ° C. IR (KBr): 3225, 2943, 2654, 2542, 1739, 1458, 1379, .1331, 1256, 1171, 115, 1059, 974, 955, 862 cm "1. 1 H-NMR (CDCl 3) 106 (2x1H, br, NH + O), 450 (1H, m, CH-OH), 4 17 (2H, q, J = 7 1 Hz, CH 3 CH 2), 392-386 (1H, dd, J = 106 y = 48 Hz, 1H, dd, J = 106 y = 5 7 Hz, OCH2), 327-3 05 (1H, dd, J = 132 y = 1 7 Hz, 1H, dd, J = 132 y = 9 1 Hz, CH-CH¿-N), 320 (4H, m), 1 96 (4H, m) 1 65 (2H, m) (2H, m) (pipendine), 1 27 (3H, t, J = 7 1 Hz, CH3) 13 C-NMR (CDCl 3) 1582 (s, C = O), 77 8 (t, OCH 2), 638 (d, CHOH), 61 9 (t) and 60 5 (t) (CH 3 CH 2 + CH-CH 2- N), 54 5 (t), 232 (t) and 22 1 (t) (p? Per? D? Na), 14 5 (, CH3) Analysis CnH22N2042H20 Calculated C 46 8%, H 7 9%, N 99 % Found C 474%, H 80%, N 98% The above compound was also prepared by two alternative processes I) 1 68g (003 moles) of potassium hydroxide were dissolved in 30 ml of ethanol and 1 05 g (001 moles) of N-hydroxyurethane were added thereto After stirring for half an hour, 1 62 g (001 mole) of 1-chloro-3-p? per? d? no-2-propanol 1n 10 ml of ethanol were added thereto drip and the mixture was boiled for 6 hours. The potassium chloride precipitate was filtered, the solution was evaporated and the crude product thus obtained was purified by column chromatography. Crystallizing the oil from the ether chromatography gave the title compound as a result. Yield 1 42 g (58%) II) 525 g (005 moles) of N-hydroxyurethane were dissolved in 50 ml pure and dry dimethyl formamide followed by the addition of 1.0 g (0.025 mole) of powdered sodium hydroxide and 4.7 ml (0.05 mole) of tertiary butanol. To the suspension thus obtained was added 7.8 g (0.055 mole) of N- (2,3-epoxypropyl) -piperidine [J.A. C.S. 80 :, 1257-9 (1958)] was added at 50 ° C while stirring. Stirring was continued for 4 hours at 80 ° C followed by evaporation in vacuo. The residue was absorbed in 50 ml of ethanolThe precipitate of sodium chloride was filtered and the crude product was purified by column chromatography. After crystallizing from ether, the title compound was obtained. Performance: 8.9g (72%). Example 3: N-isopropyl-N '- (2-hydroxy-3-piperidino-propoxy) urea 0- (2-hydroxy-3-piperidino-Propyl) -hydroxylamine (1.74 g, 0.01 mol) was dissolved in 25 ml of absolute chloroform and under stirring, 0.98 ml (0.01 mole) of iso-propyl isocyanate was added. The reaction was monitored by chromatography. At the end of the reaction, the solution was evaporated and the oily residue was purified by column chromatography. The oil thus obtained was crystallized with methanol-ether. Yield: 1.0 g (39%, Mp .: 78-79 ° C (methanol-ether) IR (KBr): 3242, 3055.2938, 2953, 2012, 1651, 1584, 1486, 1387, 1310, 1177, 1090, 1059, 1043, 949 cm "1. 1 H-NMR (DMSO-dfi): 8.98 (1H, s, CONH); 6.76 (1H, d, J = 7.9 Hz, CHNHCO); 5.02 (1H, s, OH); 3.95-3.65 (3H, m, CHNH, CHOH, OCH2); 3. 55 (1H, dd, J = 10.5 y = 7.5 Hz, OCH2); 2.35 (4H, m, piperidine); 2. 27 (2H, d, J = 6.3 Hz, CH2N); 1.6-1.3 (6H, m, piperidine); 1.1 (6H, d, J = 6.6 Hz, (CH3) 2) 13 C-NMR (DMSO-d6): 159.2 (s, C = O); 79.1 (t, OCH2); 65.2 (d, CHOH); 61.3 (t, CHCH2N); 54.5 (t, piperidine); 40.5 (d, CH (CH3) 2); 25.4 (t), and 23.7 (t) (piperidine); 22.6 (q, CH3); 22.5 (q, CH3). Analysis: C? 2H25N3O3: Calculated: C 55.6%, H 9.7%, N 16.2%, Found: C 55.6%, H 9.3%, N 16.9%. Example 4: Nn-propyl-N '- (2-hydroxy-3-piperidino-propoxy) -urea 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (1.74 g, 0.01 mol) was dissolved in 20 ml of chloroform and under stirring 0.95 ml (0.01 mole) of n-propyl isocyanate were added thereto. After 1 hour, an additional 0.3 ml (3.17 mmoles) of n-propyl isocyanate was added and the mixture was stirred for an additional 1 hour. The solution was evaporated and the oil thus obtained was purified by column chromatography. Yield: 1.3 g (50%). IR (KBr): 3319, 2934, 2878, 2802, 1666, 1551, 1456, 1393, 1308, 1155, 1092, 1040, 993, 889, 793 cm "1 H-NMR (DMSO-d 6): 8.98 (1H , s, NH), 6.95 (1H, t, J = 5.8 Hz CH2NHCO), 4.9 (1H, br, s, OH), 3.81 (1H, m, CHOH), 3.74 (1H, dd, J = 10.4 y = 3.2 Hz, OCH2), 3.56 (1H, dd, J = 10.4 y = 7.1 Hz, OCH2), 3.05 (2H,, J = 6.4) Hz, CjH2NH), 2.35 (4H, m, piperidine), 2.24 (2H, d, J = 6.4 Hz, CHCHÓN), 1.57-1.25 (6H, m, piperidine), 1.55-1.25 (2H, m, CH3CH_2), 0.84 (3H, t, J = 7.4 Hz, CH3). 13C-NMR ( DMSO-d6): 159.9 (s, CO), 79.1 (t, OCH2), 65.2 (d, CHOH), 61.4 (t, CH2N), 54.5 (t, piperidine), 40.3 (t, CH2NH), 25.3 (t, ); 23.7 (t), is 22.7 (t) (CH3CH2 + piperidine); 11.0 (q, CH3) 2.
The above compound was also prepared by the following alternative processes: N- (2-hydroxy-3-piperidino-propoxy) -ethyl carbamate (2.46 g, 0.01 mole) was dissolved in 30 ml of absolute tetrahydrofuran, 2.1 ml (0.015 mole) ) of triethylamine was added and subsequently 0.82 ml (0.59 g, 0.01 mole) of n-propylamine in 10 ml of absolute tetrahydrofuran were added dropwise while stirring. The mixture was boiled for 72 hours and then evaporated. The evaporation residue was purified by chromatography and the purified material was crystallized from petroleum ether to thereby obtain the title compound. Yield: 2.4 g (65%). Example 5: N-cyclohexyl-N '- (2-hydroxy-3-piperidino-propoxy) -urea 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine was dissolved (1.74 g, 0.01 mole) in 40 ml of absolute chloroform and 1.29 g (0.01 mole) of cyclohexyl isocyanate with stirring. After 24 hours, the reaction mixture was evaporated and the residue was crystallized with methanol. Yield: 2.0 g (67%). Mp: 108-110 ° C (methanol).
GO. (KBr): 3319, 3287, 3188, 2930, 2853, 2797, 1637, 1574, 1452, 1354, 1331, 1300, 1101, 1098, 991 cm "1 H-NMR (CMSO-d6): 8.75 (1H, s, CONHO), 6.52 (1H, d, J = 7.7 Hz, CHNHCO), 4.71 (1H, s, CHOH), 3.80 (1H, m, CHOH), 3.76 (1H, dd, J = 10.4 y = 3.1 Hz , OCH2), 3.57 (1H, dd, J = 10.4 y = 7.2 Hz, OCH2), 3.45 (1H, m, CHNH), 2.37 (4H, t, J = 4.8 Hz) and 1.9-1.6 (4H, m) (piperidine), 1.6-1.3 (6H, m, piperidine), 1.3-1.1 (6H, m, cyclohexyl). 13 C-NMR (DMSO-d 6): 159.2 (s, CO); 79.1 (t, OCH2); 65.2 (d.CHOH); 61.3 (t, CHCH2N); 54.5 (t, piperidine); 47.4 (d, CHNH); 32.6 (t), 32.5 (t), 25.0 (t), 24.3 (t = and 23.7 (t) (cyclohexyl), 25.4 (t), 24.3 (t) and 23.7 (t) (pyperidine) Analysis: C12H23N3O30. 5 Calculated H2O: C 58.4%, H 8.5%, N 13.6%, Found: C 58.8%, H 9.3%, N 13.7% Example 6: Nn-hexyl-N '- (2-hydroxy-3-piperidino-propoxy ) -urea O- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (1.85 g, 0.011 mol) was dissolved in 30 ml of chloroform and 1.17 ml (0.011 mol) of n-hexyl isocyanate were added with stirring. After 3 hours, the reaction mixture was evaporated and purified by column chromatography The oil thus obtained was slowly crystallized in the refrigerator and by rubbing the crystals in petroleum ether a white material was obtained Yield: 0.9 g (7%) Pf: 50-52 ° C IR (KBr): 3310, 2932, 2858, 2804, 1666, 1551, 1454, 1377, 1206, 1092, 1040, 995, 791, 725, 604 cm "1 H-NMR (DMSO-d 6): 8.97 (1 H, s, NH); 6.91 (1 H, t, J = 5.8 Hz, NH); (1H, s, OH), 3.82 (1H, m, CHOH), 3.72 (1H, dd, J = 10.4 y = 3.3 Hz, OCH2), 3.56 (1H, dd, J = 10.4 y = 7.1 Hz, OCH2) 3.05 (2H, q, CH2NH), 2.50 (4H, n, piperidine), 2.23 (2H, d, J = 6.4 Hz, CHCH2N), 1.55-1-3 (2H, m) and 1.27 (6H, m) ((CH2) 4, hexyl); 1.55-1.25 (6H, m, piperidine); 0.86 (3H, t, J = 6.4 Hz, CH3). 13C-NMR (DMSO-de): 159.8 (s, CO); 79., 0 (t, OCH2), 65.2 (d, CHOH), 61.4 (t, CHCH2N), 54.5 (t, piperidine), 38.5 (t, CH2NH), 30.08 (t), 29.5 (t) 25.7 (t ), and 21.8 (t) ((CH2) 4); 25.3 (t) and 23.7 (t) (piperidine); 13.7 (q, CH3).
Analysis C15H31N3O3 Calculated D 59 8%, H 104%, N 139%, Found C 60.0%, H 10 1% N 139% Example 7- N- (3-chlorophen? L) -N- (2-h? Drox? -3-p? Per? D? Nopropox?) - urea O- (2-h? Drox? -3-p? Pepd? No-prop? L) -h? Drox? Lam? Na was dissolved (2 g , 1148 mmoles) in 40 ml of chloroform and 14 ml (1148 mmoles) of 3-chlorophenisocyanate were added thereto and stirred for 4 hours at room temperature. The reaction mixture was evaporated and purified by column chromatography The chromatographically pure oil was crystallized from ether Yield 1 3 g (34%) PF 117-118ßC. IR (KBr) 3250, 2939, 2900, 1670, 1597, 1551, 1491, 1429, 1329, 1252, 1119, 972, 775, 718. 700 cpT '1 H-NMR (DMSO-de): 9.7 (1H, s, CONHO), 9 3 (1H, s, NH), 7 7 (1H, br, s), 7 44 (1H, d, J = 8 0 Hz), 7 30 (1H, t, J = 8 0 Hz), and 7 05 (1H, d, J = 8 0 Hz) , (phenyl); 5.35 (1H, s, OH), 4 0-3 8 (2H, m, CHOH, OCH2), 3.69 (1H, dd, J = 10.7 y = 7 9 Hz, OCH2), 327 (2H, d, J = 6 2 Hz, CHCH2N), 2.36 (4h, m) and 1.55-1.25 (t, H, m) (p? Per? D? Na) 13H-NMR (DMSO-d6): 157 1 (s, CO), 1404 (s), 132 9 (s), 130 1 (d), 121.9 (d), 117 9 (d) and 117 0 (d) (fep), 79 8 (t, OCH2), 65 3 (d, CHOH), 61 2 (t, CHCH2N), 54 5 (t), 25 4 (t) and 23 7 (t) (pipepdine) Analysis C? SH22CIN3O30 5 H20 Calculated- C 53.8%, H 6 9%, N 12 5%, Found C 53.9%, H 6 8%, N 12 3% Example 8 N-methyl-N '- (2-h? Drox? -3-p? Per? D? Non-propoxy) -urea O- (2-hydroxy-3-) was dissolved piperidino-propyl) -hydroxylamine (2.47 g, 0.0142 mol) in 40 ml of absolute chloroform and 0.84 ml (0.0142 mol) of methyl isocyanate were added thereto with stirring. The mixture was stirred for 2 hours at 25 ° C. Subsequently, the solution was evaporated and the residue was rubbed with ether. Performance: 2.5g (76%). Mp .: 98-101 ° C. GO. (K Br): 3356, 3217, 1943, 1658, 1556, 1414, 1377, 1292, 1132, 1092, 984, 908, 779, 741, 636 cm "1 H-NMR (DMSO-de): 9.0 (1H , s, CONHO), 6.91 (1H, q, J = 4.5 Hz, CH3NHCO), 4.82 (1H, br, s, OH), 3.8 (1H, m, CHOH), 3.7-3.5 (2H, dd, OCH2); 2.62 (3H, d, CH3N), 2.32 (m, 4H, piperidine), 2.25 (2H, d, CHCH2N), 1.6-1.3 (6H, m, piperidine), 13C-NMR (DMSO-d6): 160.4 ( s, CO), 78.9 (t, OCH2), 65.2 (d, CHOH), 61.5 (t, CH2N), 54.5 (t, piperidine), 25.54 (q, CH3N), 25.3 (t), and 23.7 (t) (piperidine) Analysis: C? 0H21N3O3: Calculated: C 51.9%, H 9.2%, N 18.2%; Found: C 51.7%, H 9.2%, N 18.6% The above compound was prepared according to the following alternative method : 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (1.74 g, 0.01 mol) was dissolved in 50 ml of absolute chloroform and 0.94 g (0.01 mol) of N-methyl carbamoyl chloride in 10 ml of chloroform was added dropwise while stirring at 5 ° C. The mixture was stirred for 2 hours at room temperature followed by washing with 2x30 ml of 1N sodium hydroxide and 1x20 ml of water. The chloroform layer was dried over magnesium sulfate and after filtering the drying agent the solution was evaporated. The residue was triturated with ether, thereby obtaining the title compound. Performance: 1.9g (82%). Example 9: N-tert-butyl-N '- (2-hydroxy-3-piperidino-propoxy) -urea O- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (2.53 g, 0.0145 moles) was dissolved in 40 ml of absolute chloroform and 1.66 ml of terbutyl isocyanate (0.0145 moles) were added thereto with stirring. The mixture was stirred for 2.5 hours. Subsequently, the solution was evaporated and the residue was triturated with petroleum ether and then purified by column chromatography. The oil thus obtained was crystallized with petroleum ether. Yield: 1.5 g (38%). Mp 71-73 ° C. JR. (KBr): 3314, 2945, 2916, 1651, 1555, 1460, 1393, 1384, 1335, 1254, 1111, 988, 903, 839, 781 cm'1. 1 H-NMR (DMSO-d 6): 8,788 (1H, s, CONHO); 6.6 (1H, s, CNHCO); 4.9 (1H, dd, s, OH); 3.8 (1H, m, CHOH); 3.55-3.45 (2H, dd, OCH2); 2.3 (m, 4H, piperidine); 2.25 (2H, d, CH2N); 1.5-1.3 (6H, m, piperidine). 13 C-NMR (DMSO-d 6): 159.2 (s, CO); 79.1 (t, OCH2; 65.0 (d, CHOH); 61.2 (t, CH2N); 54.5 (t, piperidine); 49.2 (s, (CH3) 3C); 28.6 (q, (CH3) 3C); 25.3 (t) and 23.7 (t) (piperidine). Analysis: C? 3H27N303: Calculated: C 57.1%, H 9.9%, N 15.4%; Found: C 56.9%, H 9.9%, N 15.8%.
Example 10: N- (4-methoxyphenyl) -N '- (2-hydroxy-3-piperidino-propoxy) -urea O- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (2.53 g, 0.0145 moles) was dissolved. ) in 40 ml of absolute chloroform and 1.9 ml (0.0145 mole) of 4-methoxyphenyl isocyanate were added thereto during stirring. After 3 hours, the solution was evaporated and the residue was purified by column chromatography. The oil thus obtained was crystallized from diethyl ether. Yield: 2.0 g (42%). Mp: 103-104 ° C. JR. (KBr): 3398, 3183, 3098, 2943, 2837, 1691, 1596, 1537, 1514, 1486, 1302, 1229, 982, 899, 831 cm "1 H-NMR (DMSO-de) '94 (1H, s, CONHO); 89 1H, s, NHCONHO); 7.41 (2H, d) and 6.85 (2H, d) (phenyl), 5.25 (1H, br, s, OH); 3.85 (1H, m, CHOH); 3.7 (3H, s, OCH3); 3.83-3.5 (2H, dd, OCH2); 2.33 (4H, m, piperidine); 2.29 (2H, d, CH2N); 1.46-1 35 (6H, m, piperidine). 13 H-NMR (DMSO-d 6): 1576 (s, CO); 154.7 (s), 131.7 (s), 120.5 (d) and 113.6 (d) (phenyl); 79.6 (t, OCH2); 65.3 (d, CHOH); 61 2 (t, CH2N); 54.9 (q, OCH3); 54.5 (t), 254 (t) and 23.8 (t) (piperidine). Analysis: Ci6H25N304: Calculated: C 594%, H 7.8%, N 13.0%; Found: C 59.1%, H 8.9%, N 138%. Example 11: N-benzyl-N -'- 2- (hydroxy-3-piperidino-propoxy) -urea 0- (2-hydroxy-3-piper? Dino-propyl) -hydrox was dissolved ? lamina (2.53 g, 0.0145 moles) in 40 ml of absolute chloroform and 1.8 ml (0 0145 moles) of benzyl isocyanate were added thereto with stirring. The mixture was stirred for 2 hours, the solution was evaporated and the residue was crystallized from the ethanol-ether mixture. Yield: 2.1g (47%), Mw: 100-101 ° C. GO. (KBr): 3320, 3000, 2910, 1660, 1530, 1370, 1190, 1155, 1125, 1105, 1085, 976, 780, 695 cm'1. 1 H-NMR (DMSO-d 6): 9.20 ((1H, s, CONHO); 7.50 (1H, t, CH2NHCO); 7.32-7.22 (5H, m, phenyl); 4.9 (1H, br, s, OH); 4.30 2H, d, J = 6.1 Hz, CH2NCO); 3.81 (1H, m, CHOH); 3.75 (1H, dd, OCH2); 3. 63 (1H, dd, OCH2); 2.34-2.2 (6H, m, CH2N); 1.44-1.33 (6H, m, piperidine) 13 C-NMR (DMSQ-dfi): 159.9 (s, CO); 140.0 (s); 127.9 (d), 126.6 (d), and 126-41 (d) (phylum); 79.2 (t, OCH2 (t, OCH2; 65.2 (s, CHOH); 61.5 (CHCH2N); 42.0 (t, PhCH2N); 25.3 (t) and 23.7 (t) (piperidine) Analysis: C? 6H25N303: Calculated: C 62.5%, H 8.2%, N 13.7%; Found: C 62.5%, H 8.0%, N 13.4% Example 12: N-isopropyl-N '- [2-hydroxy-3- (4-benzyl) hydrochloride piperazino) -propoxy] -urea 0- [2-Hydroxy-3- (4-benzyl-1-piperazino) -propyl] -hydroxylamine (2.65 g, 0.01 mol) was dissolved in 50 ml of absolute chloroform, 1 ml (0.01) moles) of isopropyl isocyanate were added thereto dropwise while stirring and stirring continued for an additional 3 hours After the reaction the oil obtained was evaporated and 3.5 g of oily material was obtained. The oil and 3.5 g of oily material were obtained The title compound was recovered from the oil by the addition of hydrochloric acid in ether Yield: 2.4 g By recrystallization of the dihydrochloride (1 g) in ethyl acetate, 0.85 g was obtained. of crystalline material White, Mp: 208-212 ° C (ethyl acetate, dec.). GO. (KBr): 3337, 3297, 3165, 2972, 2864, 1657, 1551, 1445, 1420, 1358, 951, 926, 746, 696 cm "1 H-NMR (DMSO-d 6): 13-12 (1H; br, s, NH +), 12-11 (1H, br, s, NH +), 9.15 (1H, br, s, CONHO), 7.7 (2H, m) and 75 (3H, phenyl or, m + p) 6.72 (1H, d, J = 8.0 Hz, CHNHCONH), 4.7-4.2 (3H, m, OCH2CH), 3.9-3.0 (12H, m, CHNH + CHCH2N + piperazine, NCH2-phenyl), 1.12 (6H, d , J = 6.4 Hz, 2xCH3). 13 C-NMR (DMSO-de): 158.9 (s, NHCO), 131.2 (d), 129.3 (d) and 128.6 (d) (phenyl); 77.2 (t, OCH2); 62.9 (d, CHOH), 40.6 (d, CHNH), 60-58, 50-46 (piperazine), 22.5 (q, CH3) Analysis: C18H32N4O3'0.5 H20: Calculated: C 50.0%, H 7.7%, N 12.9%; Found: C 50.2%, H 7.6%, N 13.2% Example 13: N-tert-butyl-N '- (2-hydroxy-3-diethylamino-propoxy) -urea 0- (2-Hydroxy-3-diethylaminopropyl) -hydroxylamine was dissolved in 40 ml of absolute chloroform and 3.08 ml (0.027 mole) of tert-butyl isocyanate were added thereto dropwise. The mixture was stirred at room temperature for 15 hours and evaporated. The product thus obtained was purified by column chromatography. The material thus obtained is in oily form which crystallizes when stored in the refrigerator. The crystals were filtered after trituration with petroleum ether. Yield: 1.44 g (20%). Mp .: 58-61 ° C. [R (KBr): 3325, 2965, 2934, 1670, 1549, 1460, 1393, 1236, 1092, 1067, 991, 783 crn "1. 1 H-NMR (DMSO-de): 8.63 (1H, br, s, CONHO); 6.35 (1H, br, s, (CH3) 3CNHCO); 3.81 (1H, dd, J = 11.2 y = 2.9 Hz, OCH2); 3.60 (1H, dd, J = 11.2 y = 8.1 Hz, OCH2); 3.8-3.7 (1H, m, CHOH, overlap); 2. 55 (4H, q J = 7.2 Hz, CH2CH3); 2.42 (2H, d, J = 6.3 Hz, CHCH2N); 1.32 (9H, s, (CH3) 3C); 0.97 (6H, t, J = 7.2 Hz, CH2CH3). 13 C-NMR (DMSO-dfi): 159.2 (s, NHCO); 79.0 (t, OCH2); 65.9 (d, CHOH); 55.5 (t, CH-CH2N); 49.2 (s, (CH3) 3C); 47.0 (t, 2xNCH2CH3); 28.6 (q (CH3) 3C); 11.5 (q, CH2CH3). Example 14: N '- (2-hydroxy-3-piperidinopropoxy) benzyl carbamate 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (1.74 g, 0.01 mol) was dissolved in 40 ml of absolute chloroform and 1.41 ml (0.01 mol) of benzyl chloroformate in 10 ml of chloroform was added thereto by dripping at 0 ° C. The mixture was stirred at 20 ° C for 4 hours and another 1.41 ml (0.01 mole) portion of benzyl chloroformate was added and stirred for an additional 2 hours to the reaction mixture, 1.4 ml (0.01 mole) of triethylamine was added. and was stirred for 4 hours followed by evaporation and purifying the oily residue by column chromatography. Therefore, a light yellow oil was obtained. Yield: 1.62 g (53%). 1 H-NMR (DMSO-d 6); 10.4 (1H, br, s, NH); 7.35-7.3 (5H, m, phenyl); 5.1 (2H, PhCH20); 4.5 (1H, d, CHOH); 3.81-3.6 (3H, m, OCH2 + CHOH); 2.4-2.2 (6H, m) and 1.4-1.2 (6H, m) (piperidine). 13 H-NMR (DMSO-d 6): 156.7 (s, CO); 142.3 (s); 128.2 (d), 127.8 (d), 127.7 (d), 126.4 (d) and 126.2 (d) (phenyl); 79.2 (t, OCH2); 65.7 (t, PhCH20); 65.3 (d, CHOH); 61.5 (t, CH-CH2N); 54.5 (t), 25.3 (t), is 23.69 (t) (piperidine). The title compound was prepared by the following alternative method: 3.1 g (0.02 mole) of benzyl ester of N-hydroxy-carbamic acid and 2.24 g (0.04 mole) of sodium hydroxide were dissolved in the mixture of 10 ml of water and 3 ml of dimethyl sulfoxide, 3.1 ml (3.7 g, 0.04 mole) of epichlorohydrin were added to the solution while stirring at 0 ° C and the mixture was stirred for 8 hours at this temperature. 20 ml of water were added followed by extraction with 4x20 ml of ethyl acetate, the combined ethyl acetate layers were washed with 1x20 ml of water, dried over magnesium sulfate, filtered and the solution was evaporated. The oil thus obtained was dissolved in 40 ml of diethyl ether, 19.7 ml (17 g, 0.2 mole) of piperidine and 15 ml of 4N sodium hydroxide was added thereto. The mixture was boiled for 5 hours, the layers were separated, the ether layer was washed with 2x20 ml of saturated saline, dried over magnesium sulfate and evaporated. The oily residue was purified by column chromatography to obtain the title compound. Yield: 4.1 g (67%).
Example 15: N-cyclohexyl-N '- (2-hydroxy-3- [N- (cyclohexyl-carbamoyl) -N-terbutylamino] -propoxy) -urea 0- (2-hydroxy-3-terbutylaminopropyl) -hydroxylamine was dissolved (2.65 g, 0.01812 mol) in 50 ml of absolute chloroform and 4.6 ml (0.3624 mol) of cyclohexyl isocyanate were added thereto with stirring. The mixture was stirred for 2 hours at room temperature and evaporated. The residue was dissolved in ethyl acetate, treated with charcoal, followed by filtration and evaporation of the solution. The light yellow oil thus obtained was crystallized from the mixture of ethyl acetate and ether. Yield: 3.3 g (44%) Mp: 151-152 ° C. GO. (KBr): 3312, 2932, 2854, 1668, 155, 1450, 1292, 1354, 1252, 1220, 1130, 941, 891 cm "1.? -RMN (DMSO-de): 9.01 (1H, s, CONHO) 6.68 and 6.64 (1H, d, J = 8.7 Hz, 1H, d, J = 8.1 Hz, 2xCHNH), 6.25 (1H, d, J = 4.3 Hz, OH), 3.75 (1H, m, CHOH), 3.70 (1H, dd, J = 10.2 y = 3.5 Hz) and 3.55 (1H, dd, J = 10.2 y = 7.0 Hz) (OCH2CO), 3.40 (2x1H, m, ciciohexyl), 3.25 (1H, d, J = 16.0 Hz) and 3.00 (1H, dd, J = 16.0 Hz, J = 8.6 Hz) (CHCH_2N), 1.8-1.4 (2x4H, m, ciciohexyl), 1.29 (9H, s, CH3), 1.4-0.9 (2x6H, m , cyclohexyl). 13 C-NMR (DMSO-d 6): 159.3 (s) and 159.0 (s) (CO); 78.1 (t, OCH 2); 70.4 (d, CHOH); 54.9 (s, C (CH 3) 3) 48.1 (t, CHCH2N), 44.6 (d), and 44.5 (d) (cyclohexyl), additional signals: 33.0 (t), 32.7 (t), 32.6 (t), 28.4 (q, CH3), 25.2 (t), ); 25.0 (t); 24.3 (t); 24.1 (t) The title compound was prepared by the following alternative method: N-cyclohexyl-N '- (2-hydroxy-3-N-terbutylamino-propoxy) -urea (2.88 g, 0.01 mole) was dissolved in 50 ml of absolute chloroform and 1.25 g (0.01 mole) of cyclohexyl isocyanate were added. with agitation. The mixture was stirred for 2 hours at room temperature and evaporated. The residue was dissolved in ethyl acetate, treated with charcoal, followed by filtration and the solution was evaporated. The residual oil thus obtained was crystallized from the mixture of ethyl acetate and ether to thereby obtain the title compound. Yield: 3.1 g (75%). Example 16: Nn-hexyl-N '- (3-piperidino-propoxy) -urea 0- (3-piperidino-propyl) -hydroxylamine (1.37 g, 8.66 moles) was dissolved in 25 ml of absolute chloroform and 0.92 g (8.66 moles) of n-hexyl isocyanate were added thereto with stirring. The reaction was followed by chromatography. After one day, another portion of n-hexyl isocyanate (0.46 ml, 4.33 mmol) was added and the mixture was stirred for 2 hours. The chloroform layer was washed with 20 ml of 10% sodium carbonate solution and 1x20 ml of water, dried over magnesium sulfate, filtered and the solution evaporated. Performance: 2.1g (85%). ! R (KBr): 3354, 2932, 2856, 2810, 2777, 1666, 1543, 1486, 1377, 1308, 1155, 1134, 1976 cm "1 H-NMR (CDCl 3): 8.12 (1 H, br, s, NH); 6.3 (1H, t, J = 5.6 Hz, CH 2 NHCO); 3.85 (2H, t , J = 5.9 Hz, OCH2), 3.27 (2H, dd, J = 7.1 y = 5.6 Hz, CH2NH), 2.3 (6H, M, piperidine), 1.85 (2H, m, OCH2CH2CH2), 1.7-1.2 (14H, m, piperidine + CH 3 (CH 2) 4), 0.92 (3H, t, J = 6.7 Hz. CH 3). 13 C-NMR (CDCU): 160.3 (s, CO); 76.5 (t, OCH2); 56.2 (t, OCH2CH2CH2N); 54.4 (t, piperidine); 39.5 (t, CH2NH); 31.4 (t), 30.2 (t), 26.4 (t,), 25.6 (t), 25.4 (t), 24.2 (t) and 22.4 (t), (? Iperidine + OCH2CH2CH2 + CH3 (CH2) 4); 13.8 (q, CH3). Example 17: N-cyclohexyl-N '- (2-acetoxy-3-piperidino-propoxy) urea hydrochloride N-cyclohexy I- N' - (2-h id roxi-3-pi pe ridi non-propoxy) was dissolved ) urea (0.67 g, 2238 moles) in 25 ml of absolute chloroform and 0.23 ml (2462 mmoles) of acetic anhydride were added thereto with stirring. The mixture was stirred overnight followed by evaporation. The hydrochloride salt was prepared from the oil obtained with hydrochloric acid in ether. Yield: 0.56 g (66%). Mp: 184-186 ° C. GO. (KBr): 3381, 3211, 2935, 1854, 1739, 2664, 2548, 1744, 1730, 1672, 1531, 1450, 1371, 1242, 1229 cm "1 H-NMR (DMSO-dfi): 10.7 (1H, br, s, NH +), 9.2 (1H, s, CONHO), 6.62 (1H, d, J = 8.2 Hz, CNHCO), 5.38 (1H, m, CHO-CO), 3.87 (2H, d, J = 4.7 Hz, OCH2), 3.4 (5H, m), 2.9 (2H,), 2.12 (3H, s, COCH3), 2.0-1.4 (10H, m), 1.45-0.95 (6H, m) .13C-NMR (DMSO -dfi): 169.7 (s, COCH3), 158.7 (s, CO), 74.3 (t, OCH2); 65.9 (d, CHOCO); 55.8 (t), 52.9 (t), 52.1 (t), 47.8 (d, 2xcyclohexyl); 24.5 (t), 21.7 (t), 21.0 (q, CH3). Example 18: N-cyclohexyl-N'-acetyl-N '- (2-acetoxy-3-piperidino-propoxy) -urea N-cyclohexyl-N' - (2-hydroxy-3-piperidino-propoxy) - urea (1.2 g, 4.01 mmol) in 10 ml (0.106 mol) of acetic anhydride, 0.1 ml of pyridine were added and the mixture was allowed to stand overnight at room temperature. The mixture was then evaporated, dissolved in 30 ml of chloroform, followed by washing the chloroform layer with 10 ml of 10% sodium carbonate solution and 1x20 ml of water, dried over magnesium sulfate, filtered and it evaporated. Performance: 1.2g. IR (KBr): 3296, 2934, 2854, 2787, 1730, 1660, 1520, 1452, 1371, 1236, 1040, 891, 750, 621 cm "1 H-NMR (DMSO-d 6): 7.93 (1H, d , J = 7.8 Hz, NH), 5.13 (1H, m, CHO), 4.18 (1H, dd, J = 9.9 y = 2.9 Hz) and 4.08 (1H, dd, J = 9.9 y = 6.3 Hz) (NOCH2); 3.54 (1H, m, cyclohexyl, CH); 2.5-2.3 (6H, m, CH2N, piperidine); 2.27 (3H, s, NCOCH3); 2.02 (3H, s, OCOCH3); 1.9-1.1 (16H, m, cyclohexyl + piperidine). 13 C-NMR (DMSO-dfi): 171.8 (s, NCOCH 3); 169.5 (s, OCOCH3); 150.0 (s, NHCON); 75.0 (t, OCH2); 68.5 (d, CHOH); 57.7 (t, CHCH2N); 54.2 (t, piperidine); 48.5 (d, CHNH); 31.9 (t, cyclohexyl); signals of the two rings: 25.3 (t); 24.8 (t); 23.6 (t) (cyclohexyl + piperidine); 22.9 (q) and 20.7 (q) (CH3COO and CH3CON).
Example 19: N- (3-nitrofenyl) -N '- (2-hydroxy-3-piperidino-prop oxy) -urea O- (2-hydroxy-3-piperidino-propyl) hydroxylamine (1.74 g, 0.01) was dissolved. moles) was dissolved in 25 ml of absolute chloroform and 1.64 g (0.01 moles) 3-Nitrophenyl isocyanate in 10 ml of absolute chloroform were added thereto with stirring. After 1 hour of reaction, the mixture was evaporated and purified by column chromatography. The oil thus obtained was crystallized with diethyl ether. Yield: 1.84 g (54%). Mp: 137-139 ° C. R (KBr): 3281, 2943, 2828, 1672, 1607, 1560, 1529, 1486, 1437, 1254, 1283, 1115, 802, 739 cm "1 H-NMR (DMSO-de): 9.87 (1H, br , s) and 9.55 (1H, br, s) (2xNH), 8. 57 (1H, t, J = 2.1 Hz), 7.91 and 7.85 (2x1H, dd, J = 8.2 y = 2.1 Hz), 7.58 (1H, t, J? = J2 = 8.2 Hz) (phenyl); 5.16 (1H, br, s, OH); 3.95 (1H, m, CHOH); 3.88 (1H, dd, J = 10.5 y = 3.0 Hz) and 3.71 (1H, dd, J = 10.5 y = 7.4 Hz) (OCH2); 2.36 (4H, m, piperidine); 2.30 (2H, d, J = 6.3 Hz, CHCH2N); 1.46 (4H, m) and 1.36 (2H, m) (piperidine). 13 C-NMR (DMSO-d 6): 157.0 (s, CONH); 147.8, 140.2 129.7, 124.7, 116.7, and 112.6 (phenyl); 79.8 (t, OCH2); 65.4 (d, CHOH); 61.2 t, CHCH2N); 54.5 (t), 25.3 (t), and 23.7 (t) (piperidine). Example 20: Nn-hexyl-N '- (2-hydroxy-3-morpholinopropoxy) -urea maleate 0- (2-hydroxy-3-morpholino-propyl) -hydroxylamine (175 g, 0.01 mole) was dissolved in 25 g. ml of absolute chloroform and 1.06 ml (0.01 mole) of n-hexyl isocyanate were added thereto with stirring. The reaction was followed by chromatography. After 1 hour, an additional 0.5 ml portion (5 mmoles) of n-hexyl isocyanate was added and the mixture was stirred for 2 hours. The chloroform layer was washed with 20 ml of 10% sodium carbonate solution and 1x20 ml of water, dried over magnesium sulfate, filtered and evaporated. The oil thus obtained (2.57 g) was dissolved in 15 ml of ethyl acetate and isolated in the salt form by the addition of the equivalent amount (0.98 g) of maleic acid. Yield: 2.55 g (61%). Mp: 107-108 ° C (ethyl acetate). GO. (KBr): 3402, 2932, 2860, 1655, 1576, 1493, 1387, 1366, 1194, 1136, 1076, 993, 876, 866, 710, 559 cm "1 H-NMR (DMSO-d 6): 9.1 ( 1H, s, CONHO), 6.87 (1H, t, J = 5.7 Hz, CH2NHCO); 6.1 (2H, s, maleic acid CH); 4.10 (1H, m, CHOH); 3.80 (2x2H, m, morpholine); 3.67 (2H, d, J = 5.4 Hz, OCH2); 3.2-2.9 (8H, m, CH (OH) CH2N + CH3 (CH2) 4CH2 + morpholine); 1.42 (2H, m, C 3 { C 2) 3C j2); 1.25 (6H, br, CH3 (CH2) 3); 0.93 (3H, t, J = 6.5 Hz, CH3). 13 C-NMR (DMSO-dfi): 167.0 (s, maleic acid COOH); 159.7 (s, CONH); 135.1 (d, maleic acid CH); 77.5 (t, OCH2); 63.1 (t, morpholine); 62.6 (d, CHOH); additional signals: 58.6 (i) and 51.8 (t) (2xNCH2); 38.6 (t), 30.7 (t), 29.4 (t), 25.7 (t), 21.8 (t) and 13.6 (q) (hexyl). Example 21: N, N-diphenyl-N '- (2-hydroxy-3-piperidino-propoxy) -urea 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine was dissolved (0.92 g, 5.28 mmol) in 20 ml of absolute chloroform and 1.1 ml (7.92 mmoles) of triethylamine were added thereto followed by the dropwise addition of 1.22 g (5.28 moles) of carbamoyl diphenyl chloride in 5 ml of tetrahydrofuran. . The mixture was stirred for 72 hours, the solid salt precipitate was filtered and the solution was evaporated. The evaporation residue was dissolved in chloroform, washed with 2x50 ml of 10% sodium carbonate solution and 2x50 ml of water, the organic phase was dried over magnesium sulphate, evaporated and purified by chromatography. The oil thus obtained was crystallized with petroleum ether. Yield: 1.2 g (61%), Mw .: 75-78 ° C. GO. (KBr): 3425, 3225, 2932, 2853, 2800, 1645, 1596, 1491, 1450, 1348, 1119, 957, 874, 764, 702 cm "1 H-NMR (DMSO-d 6): 9.50 (1H, br, s, CONHO), 7.35 (4H, m) and 7. 20 (6H, m) (phenyl, o, m + p); 4.7 (1H, br, s, OH); 3.9-3.5 (3H, m, OCH2CH); 2.4-2.1 (6H, m, piperidine, CHCH2N); 1.55-1.25 (6H,, piperidine). 13 C-NMR (DMSO-d 6): 157.5 (s, CO); 142.7 (s), 129.6; 127.6, and 126.5 (phenyl); 79.5 (t, OCH2); 66.0 (d, CHOH); 62.0 (t, CH-CH2-N); 55.1 (t), 25.0 (t) and 24.3 (t) (piper idi na). Example 22: N- (3-pyridyl) -N '- (2-hydroxy-3-piperidino-propoxy) -urea 4.2 g (0.0284 mol) of nicotinic azide were boiled for 8 hours in toluene under nitrogen and after addition 4.95 g (0.0284 mol) of 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine boiling was continued for one hour. The solvent was distilled and the residue was purified by column chromatography. The oil thus obtained was crystallized from the mixture of ether and petroleum ether. Yield 1.2 g (14%). Pf.:118-120°C. 1 H-NMR (DMSO-d 6): 9.78 and 9.32 (2x1H, br, s, NH); 8.67 (1H, d, J = 2.4 Hz, pyridine-2-H); 8.21 (1H, dd, J = 4.7 y = 1.5 Hz, pyridine-6-H); 7. 97 (1H, dd, J = 8.3, 2.4 and 1.5 Hz, pyridine 4-h); 732 (1H, dd, J = 8.3 and = 4.7 Hz, pyridine-5-H); 5.36 (1H, br, s, OH); 3.95 (1H, m, CH); 3.92 (1H, dd, J = 10.6 y = 3.0 Hz) and 3.70 (1H, dd, J = 10.6 y = 7.5 Hz) (OCH2); 2. 40 (4H, m, piperidine); 230 (2H, d, J = 6.4 Hz, CHCH2N); 1.55-1-25 (6H, m, piperidine). 13 C-NMR (DMSO-de): 157.3 (s, CO); 143.3 and 140.5 (2xd, pyridine-2-6-C); 135.5 (s, pyridine-3-C); 125.6 and 123.3 (2xd, pyridine-4-5-C); 79.8 (t, OCH2); 65.3 (d, CHOH); 61.2 (t, CHCH2); 54.5 (t), 25.3 (t) and 23.8 (t) (piperidine). Example 23: N-heptyl-N '- (2-hydroxy-3-piperidino-propoxy) -urea 0- (2-hydroxy-3-piperidino-propyl) -hydroxylamine (1.23 g, 7.08 mmol) was dissolved in 30 ml of absolute chloroform and 1.00 g (7.08 mmol) of heptyl isocyanate were added thereto while dripping while stirring. The mixture was stirred for 24 hours at room temperature and evaporated. The oily material thus obtained is crystallized while it is stored in the refrigerator. The crystals were triturated with petroleum ether and the white solid material was filtered. Performance: 1.8g (80.6%). Mp: 49-51 ° C. 1 H-NMR (CDCl 3: 7.62 (1H, br, s, CONHO); 6.74 (1H, t, J = 5.3 Hz, CH 2 -NHCO); 4.2-3.3 (1H, br, s, OH); 3.98 (1H, m, CHOH), 3.85 (1H, dd, J, = 11.1 Hz, J2 = 2.2 Hz, OCH2), 3.68 (1H, dd, ^ = 11.1 Hz, J2 = 7.4 Hz, OCH2), 3.25 (2H, m, CH3-NH), 2.7-2.2 (6H, m, piperidine-CH2 and piperidine-N-CH2), 1.7-1.2 (10H, m, (CH2) 5), 1.7-1.2 (6H, m, piperidine), 0.88 (3H, t, J = 6.6 Hz, CH3) .13C-NMR (CDCI3): 161.0 (s, CONH), 79.0 (t, OCH2), 64.0 (d, CHOH), 60.0 (t, CH (OH) CH2 ); 54.5 (t, piperidine-NCH2); 39.6 (t, CH2NH); 31.7 (t); 29.7 (t); 28.9 (t); 26.7 (y); 25.9 (t); 24.0 (t); 22.5 (t); t); (piperidine, - (CH2) S-); 14.0 (q, CH3) Example 24: N-octyl-N '- (2-hydroxy-3-piperidino-propoxy) urea 0- (2- hydroxy-3-piperidino-propyl) -hydroxylamine (1.74 g, 10.0 mmoles) in 30 ml of absolute chloroform and 1.55 g (10.0 mmoles) of octyl isocyanate were added thereto with stirring, the mixture was stirred for 24 hours at ambient temperature and evaporated, followed by purification by chromatography a in column. The material was crystallized by triturating with petroleum ether and the white solid product was filtered. Yield: 2.27 g (68.7%), Mw: 55-56 ° C. 1 H-NMR (CDC): 7.72 (1H, s, NH); 6.73 (1H, t, J = 5.3 Hz, NH); 4.4-3.6 (1H, s, OH); 3.97 (1H, m, CHOH); 3.88 (1H, dd, ^ = 11.1 Hz, J2 = 2.4 Hz, OCH2); 3.67 (1H, dd, ^ = 11.1 Hz, J2 = 7.5 Hz, OCH3); 3.23 (2H, m, CH2NH); 2.57 (2H, m, CHCH2N); 2.4-2.1 (4H, m, piperidine); 1.7-1.2 (6H, m, piperidine); 1.7-1.2 (12H, m, CH3 (CH2) 6CH2NH); 0.87 (3H, t, J = 6.8 Hz, CH3). 13 C-NMR (CDCl 3): 161.1 (s, CO); 79.0 (t, OCH2), 64.1 (d, CHOH); 59.8 (t, CHCH2N); 54.5 (t, piperidine); 39.6 (t, CH2NH); 31.7 (t); 29.7 (t); 29.2 (t); 29.1 (t); 26.8 (t); 25.9 (t); 24.1 (t); 22.6 (t) (piperidine and CH3 (CH2) 6CH2NH; 14.0 (q, CH3). The following compounds were prepared substantially by the same method described in Example 24. Example 25: N-pentyl-N '- (2-hydroxy) -3-piperidino-propoxy) -urea Yield: 85.5%, Mp: 63-65 ° C. Example 26: N-pentyl-N '- (3-piperidino-propoxy) -urea (using 0- (3-piperidino -propyl) -hydroxylamine as starting material.) Yield: 70.8%. 1 H NMR (CDCl 3): 8.05 (1H, br, s, NH); 6.3 (1H, t, J = 5.6 Hz, CH2HCO); 3.85 (2H, t, J = OCH2); 3.25 (2H, dd, CH2NH); 2.3 (6H, m, piperidine); 1.85 (2H, m, OC2CH2CH2); 1.7-1.2 (12H, m, piperidine-CH3 (Cj ± -) 3); 0.9 (3H, t, CH3). 13 C-NMR (CDCl 3): 160.3 (s, CO), 75.0 (t, OCH 2); 56.2 (t, OCH2CH2CH2N); 54.4 (t, piperidine); 39.6 (t, CH2NH); 29.9 (t), 29.0 (t); 25.4 (t); 25.4 (t); 25.3 (t); 24.1 (t); 22.3 (t), (piperidine-OCH2CH2-CH3 (CH2) 3); 13.9 (q, CH3). Example 27: N- (3-trifluoromethyl-phenyl) -N '- (2-hydroxy-3-piperidino-propoxy) -urea. Yield: 60.9%. Mp: 108-110 ° C.

Claims (9)

    CLAIMS 1. Hydroxylamine derivatives represented by the general formula (I): O // R-X-C \ N-0-CH2-CH-CH2-R3 (I) R1 R2
  1. And pharmaceutically acceptable acid addition salts thereof wherein X is O, -NH or a group of the formula -NR'-, wherein R and R ', independently of each other, are alkyl, cycloalkyl, phenylalkyl; a phenyl group optionally substituted with halo, haloalkyl, alkyl, alkoxy or nitro; or a hetero ring containing N, R1 is H or alkanoyl, R2 is H or hydroxy optionally acylated with alkanoyl, and R3 is a group of the formula -N (R4) R5 wherein R4 and R5, independently of each other, can be H, alkyl or a group of the formula -C (0) -NH-R wherein R is as defined above, or R4 and R5, when taken together with the adjacent nitrogen attached thereto, form a hetero ring of 5 to 7 members which may contain an additional heteroatom selected from nitrogen, oxygen and sulfur and which is optionally substituted with an alkyl or phenylalkyl.
  2. 2. Compounds of the general formula (I) according to claim 1, wherein X is O and R, R ', R1, R2 and R3 are as defined in claim 1.
  3. 3. Compounds of the general formula (I) according to claim 1, wherein X is NH or NR 'and R, R ", R1, R2 and R3 are as defined in claim 1.
  4. 4. Compounds of the general formula (I) according to any of claims 1 to 3, wherein the group -N (R4) RS for R3 is optionally substituted by piperidino, piperazino or morpholino
  5. 5. Compounds of the general formula (I) according to any of claims 1 to 3, in where the group -N (R4) R5 for R3 is optionally dialkylamino
  6. 6. Compounds of the general formula (I) according to any of claims 1 to 3, wherein R3 is -N (R4) R5 and R4 is alkyl and R5 is -C (= 0) -NH-R.
  7. 7. Pharmaceutical composition comprising as active substance a compound of the general formula (I) as defined in any of claims 1 to 6 or the pharmaceutically active acid addition salts thereof.
  8. 8. Process for preparing the hydroxylamine derivatives represented by the general formula (I), O // R-X-C \ N-0-CH2-CH-CH2-R; (i) And pharmaceutically acceptable acid addition salts thereof wherein X is O, -NH or a group of the formula -NR'-, wherein R and R ', independently of each other, are alkyl, cycloalkyl, phenylalkyl; a phenyl group optionally substituted with halo, haloalkyl, alkyl, alkoxy or nitro; or a hetero ring containing N, R1 is H or alkanoyl, R2 is H or hydroxy optionally acylated with alkanoyl, and R3 is a group of the formula -N (R4) R5 wherein R4 and Rs, independently of each other, can be H, alkyl or a group of the formula -C (0) -NH-R wherein R is as defined above, or R4 and R5, when taken together with the adjacent nitrogen attached thereto, form a hetero ring of 5 to 7) which can contain an additional heteroatom selected from nitrogen, oxygen and sulfur and which is optionally substituted with an alkyl or phenylalkyl, a) To prepare compounds of the general formula (I) wherein Z is O, (i) a compound of the general formula (II) H2N-0-CH2-CH-CH2-R3 (II) | R2 Where R2 and R3 are as defined above, they were reacted with a compound of the general formula (III) O II R-O-C (lll) \ Y Where R is as defined above and Y is halo or azido, or iii) a compound of the general formula (VI) O // ROC (VI) NH-OH Reacted with a compound of the general formula (VII) Y-CH2-CH-CH2-R3 I R2 (VII) iii) a compound of the general formula (VI) is reacted with a compound of the general formula (VIII) CH2-CH-CH2-R3 (VIII) iv) a compound of the general formula (VI) is reacted with a compound of the general formula (IX) CH2-CH-CH2-Y (IX) / O and subsequently with a compound of the formula R3H, wherein the formulas (VI), (VII), (VIII) and (IX) R, R2 and R3 are as defined above and Y is halo, b) to prepare compounds of the general formula (I) wherein X is -NH-, a compound of the general formula (II) wherein R2 and R3 are as defined above, are reacted with a compound of the formula (IV) or (IVa) RN = C = 0 (IV) O // R-NH-C ( Iva) \ Y Where R is as defined above and Y is halo, or c) to prepare compounds of the general formula (I) wherein X is -NH- or NR'-, a compound of the general formula (X) OR II Z-0-CN-0-CH 2 -CH-CH 2 -R 3 (X) II R 1 R 2 wherein R 1, R 2 and R 3 are as defined above and Z is alkyl, aralkyl or optionally substituted aryl, is reacted with a composed of the general formula RNH2 or RR'NH, wherein R and R 'are as defined above, or d) to prepare compounds of the general formula (I) wherein X is -NH-, R3 is -N (R) RS, R 4 is alkyl and R 5 is -C (0) -NH-R, i) a compound of the formula (II) wherein R 3 is -N (R 4) R 5, R 4 is alkyl, R 5 is H and R 2 is as it was defined before, it is reacted with an excess of a compound of the formula (IV) or (Iva) wherein R is as defined above and Y is halo, or ii) a compound of the general formula (I) wherein R3 is -N (R4) R5, R4 is alkyl, R5 is H and R2 is as defined above, is reacted with an excess of a compound of the formula (IV) or (Iva) wherein R is as defined before and Y is halo, oe) to prepare compounds of the general formula (I) wherein X is -NR'-, a compound of the formula ula general (II) is reacted with a compound of the general formula (V) R '0 \ II N - C (V) / \ R Y where R, R'. R2 and R3 are as specified above and Y is halo, and if desired, a compound of the general formula (I) is transformed into its acid addition salt, or if desired, a compound of the general formula (I) wherein R1 is H and R2 is hydroxy, it was transformed into a compound of the general formula (I) wherein R2 is acyloxy or R1 is acyl and R2 is acyloxy, optionally followed by the formation of salt.
  9. 9. Use of the compounds of the general formula (I) and the pharmaceutically active acid addition salts thereof as defined in any of claims 1 to 6 in the preparation of pharmaceutical compositions.
MXPA/A/1997/010172A 1995-06-15 1997-12-15 Derivatives of anti-ischemic hydroxylamine and pharmaceutical compositions MXPA97010172A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU9501756A HU218480B (en) 1995-06-15 1995-06-15 Hydroxylamine derivatives, process for producing them and pharmaceutical compositions containing them
HUP9501756 1995-06-15

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MX9710172A MX9710172A (en) 1998-07-31
MXPA97010172A true MXPA97010172A (en) 1998-11-09

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