ZA200502498B - Novel pireidine derivatives and their use as monoamine neurotransmitter re-uptake inhibitors - Google Patents
Novel pireidine derivatives and their use as monoamine neurotransmitter re-uptake inhibitors Download PDFInfo
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- ZA200502498B ZA200502498B ZA200502498A ZA200502498A ZA200502498B ZA 200502498 B ZA200502498 B ZA 200502498B ZA 200502498 A ZA200502498 A ZA 200502498A ZA 200502498 A ZA200502498 A ZA 200502498A ZA 200502498 B ZA200502498 B ZA 200502498B
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- South Africa
- Prior art keywords
- piperidine
- dichlorophenyl
- methyl
- cis
- trans
- Prior art date
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Landscapes
- Hydrogenated Pyridines (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Description
NOVEL PIPERIDINE DERIVATIVES AND THEIR USE AS MONOAMINE
: NEUROTRANSMITTER RE-UPTAKE INHIBITORS
This invention relates to novel piperidine derivatives useful as monoamine neurotransmitter re-uptake inhibitors.
In other aspects the invention relates to the use of these compounds in a method for therapy and to pharmaceutical compositions comprising the compounds of the invention.
Petukhov et al. [Petukhov P A, Zhang J, Kozikowski A P,WangCZ Ye YP,
Johnson K M and Tella S R}; J. Med. Chem. 2002 45 3161-3170] describe SAR studies of piperidine-based analogues of cocaine.
WO 00/20390 (Georgetown University) describes monomeric and dimeric heterocycles and therapeutic uses thereof. :
WO 98/51668 (NeuroSearch A/S) describes 3-alkoxyimidomethyl-piperidine derivatives active as neurotransmitter re-uptake inhibitors. Examples 1 and 2 describe two intermediate mixtures, (£)-cis/trans-1-methyl-3-methoxycarbonyl-4-(3,4- dichlorophenyl)-piperidine and ()-cis/trans-1-methyl-3-hydroxymethyl-4-(3,4- dichlorophenyl)-piperidine. No pharmacological use of these two intermediate mixtures is disclosed.
However, there is a continued strong need to find compounds with an optimised biochemical profile as regards the activity on reuptake of the monoamine neurotransmitters serotonin, dopamine and noradrenaline, such as the ratio of the serotonin reuptake versus the noradrenaline and dopamine activity.
Furthermore, there is a strong need to find effective compounds, which structurally and synthetically wise are unrelated to cocaine.
SUMMARY OF THE INVENTION oo
In its first aspect, the invention provides a piperidine derivative of the Formula I: 1
R 3
RS
4
Rm
2 oo ~orany of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof, wherein R?, R® and R* are as defined below.
In its second aspect, the invention provides a pharmaceutical composition, comprising a therapeutically effective amount of a compound of the invention, or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof, together with at least one pharmaceutically acceptable carrier, excipient or diluent.
In a further aspect, the invention provides the use of a compound of the invention, or any of its isomers or any mixture of its isomers, or a phamaceutically * acceptable salt thereof, for the manufacture of a pharmaceutical composition for the treatment, prevention or alleviation of a disease or a disorder or a condition of a mammal, including a human, which disease, disorder or condition is responsive to inhibition of monoamine neurotransmitter re-uptake in the central nervous system.
In a still further aspect, the invention relates to a method for treatment, prevention or alleviation of a disease or a disorder or a condition of a living animal body, including a human, which disorder, disease or condition is responsive to responsive to inhibition of monoamine neurotransmitter re-uptake in the central nervous system, which method comprises the step of administering to such a living animal body in need thereof a therapeutically effective amount of a compound of the invention, or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof.
Other objects of the invention will be apparent to the person skilled in the art from the following detailed description and examples.
Piperidine derivatives .. In its first aspect the present invention provides a piperidine derivative of formula
I: 1 3 a 4
R™ 0 or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof, wherein
R' represents hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or 2- hydroxyethyl;
3 Ce
R® represents -C(=0)-O-R® or -CH,-O-R; wherein R° represents hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkylalkyl;
R* represents
RP wherein R® and R® independently of each other represents halo or trifluoromethyl; with the proviso that the mixture of isomers is not (£)-cis/trans-1-methyl-3-methoxycarbonyl-4-(3,4-dichlorophenyl)-piperidine or (£)-cis/trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine.
In one embodiment, R’ represents hydrogen or alkyl.
In a second embodiment, R® and R® independently of each other represents halo. In a special embodiment, R® represents chloro. In a further embodiment, R represents chloro. In a still further embodiment, R® represents chloro and R® represents chloro.
In a further embodiment, R® represents -C(=0)-O-R°. In a further embodiment,
R® represents -CH,-O-R°.
In a still further embodiment, R° represents hydrogen, alkyl or cycloalkylalkyl. In a further embodiment, R® represents hydrogen or alkyl. in a still further embodiment,
R® represents alkyl or cycloalkylalkyl. In a special embodiment, R® represents hydrogen. In a further embodiment, R® represents alkyl, such as methyl or ethyl. In a still further embodiment, R°® represents cycloalkylalkyl, such as cyclopropylmethyl.
In a further embodiment of the compound of formula |,
R! represents hydrogen, alkyl or cycloalkylalkyl;
R°® represents hydrogen or alkyl; and
R®and R® independently of each other represent halo.
In a still further embodiment of the compound of formula f, "~ R'represents hydrogen or alkyl; ° :
R°® represents hydrogen or alkyl; and
R? and R® independently of each other represent halo. oC
In a further embodiment of the compound of formula I,
R' represents hydrogen or alkyl;
R® represents -CH»-O-RY;
R® represents alkyl or cycloalkylalkyl; and
R® and R® independently of each other represent halo.
In a special embodiment the chemical compound of the invention is 1-methyl-4-(3,4-dichlorophenyl)-piperidine-3-carboxylic acid methyl ester;
1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-cyclopropylmethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-isobutoxymethyl-4~(3,4-dichlorophenyl)-piperidine; 3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 3-cyclopropyimethoxymethyi-4-(3,4-dichlorophenyl)-piperidine; or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof.
In a further special embodiment the chemical compound of the invention is (+)-Cis-1-methyl-4-(3,4-dichlorophenyl)-piperidine-3-carboxylic acid methyl ester; (%)-Trans-1-methyl-4-(3,4-dichlorophenyl)-piperidine-3-carboxylic acid methyl ester; (+)-Cis-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; ()-Trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine (-)-Trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; ()-Cis-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; ()-Trans-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (¥)-Trans-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-methoxymethyi-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-cyclopropylmethoxymethyl4- (3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methyl-3-cyclopropylmethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; . (+)-Trans-1-methyl-3-ethoxymethyl-4-(3,4-dichioropheny!)-piperidine: (-)-Trans-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine:; : (-)-Trans-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine: (-)-Trans-1 -methyl-3-cyclopropylmethoxymethyi-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-1-methyl-3-isobutoxymethyi-4-(3,4-dichlorophenyl)-piperidine: (+)-Cis-1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (*+)-Trans-1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-cyclopropylmethoxymethyi-4-(3,4-dichlorophenyl)-piperidine;
(-)-Cis-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; .(-)-Cis-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-methoxymethyl-4-(3,4-dichlorophenyi)-piperidine; (-)-Cis -3-methoxymethyl-4~(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-cyclopropylmethoxymethyl-4~(3,4-dichlorophenyl)-piperidine; (-)-Cis-3-cyclopropylmethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-cyclopropylmethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-cyclopropylimethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; or a pharmaceutically acceptable salt thereof.
Any combination of two or more of the embodiments as described above is considered within the scope of the present invention.
Definition of Substituents
In the context of this invention halo represents fluoro, chloro, bromo or iodo. in the context of this invention an alkyl group designates a univalent saturated, straight or branched hydrocarbon chain. The hydrocarbon chain preferably contain of from one to six carbon atoms (C,.s-alkyl), including pentyl, isopentyl, neopentyl, tertiary pentyl, hexyl and isohexyl. In a preferred embodiment alkyl represents a C44-alkyl group, including butyl, isobutyl, secondary butyl, and tertiary butyl. In another preferred embodiment of this invention alkyl represents a C,_z-alkyl group, which may in particular be methyl, ethyl, propyl or isopropyl. -
In the context of this invention an alkenyl group designates a carbon chain containing one or more double bonds, including di-enes, tri-enes and poly-enes. in a preferred embodiment the alkenyl group of the invention comprises of from two to six carbon atoms (Ca.s-alkenyl), including at least one double bond. in a most preferred embodiment the alkenyl group of the invention is ethenyi; 1- or 2-propenyl; 1-, 2- or 3- butenyl, or 1,3-butdienyl; 1-, 2-, 3-, 4- or 5-hexenyl, or 1,3-hexdienyl, or 1,3,5- hextrienyl.
In the context of this invention an alkynyl group designates a carbon chain containing one or more triple bonds, including di-ynes, tri-ynes and poly-ynes. In a preferred embodiment the alkynyl group of the invention comprises of from two to six carbon atoms (Cz¢-alkynyl), including at least one triple bond. In its most preferred embodiment the alkynyl group of the invention is ethynyl; 1-, or 2-propynyl; 1-, 2-, or 3- butynyl, or 1,3-butdiynyl; 1-, 2-, 3-, 4-pentynyl, or 1,3-pentdiynyl; 1-, 2-, 3-, 4-, or 5- henynyl, or 1,3-hexdiynyl or 1,3,5-hextriynyl.
In the context of this invention a cycloalkyl group designates a cyclic alkyl group, preferably containing of from three to seven carbon atoms (Ca 7-cycloalkyl), including cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl.
Pharmaceutically Acceptable Salts
The chemical compound of the invention may be provided in any form suitable for the intended administration. Suitable forms include pharmaceutically (i.e. physiologically) acceptable salts, and pre- or prodrug forms of the chemical compound of the invention.
Examples of pharmaceutically acceptable addition salts include, without limitation, the non-toxic inorganic and organic acid addition salts such as the hydrochloride derived from hydrochloric acid, the hydrobromide derived from hydrobromic acid, the nitrate derived from nitric acid, the perchlorate derived from perchloric acid, the phosphate derived from phosphoric acid, the sulphate derived from sulphuric acid, the formate derived from formic acid, the acetate derived from acetic acid, the aconate derived from aconitic acid, the ascorbate derived from ascorbic acid, the benzenesulphonate derived from benzensulphonic acid, the benzoate derived from benzoic acid, the cinnamate derived from cinnamic acid, the citrate derived from citric acid, the embonate derived from embonic acid, the enantate derived from enanthic acid, the fumarate derived from fumaric acid, the glutamate derived from glutamic acid, the glycolate derived from glycolic acid, the lactate derived from lactic acid, the maleate derived from maleic acid, the malonate derived from malonic acid, the mandelate derived from mandelic acid, the methanesulphonate derived from methane sulphonic acid, the naphthalene-2- sulphonate derived from naphtalene-2-sulphonic acid, the phthalate derived from phthalic acid, the salicylate derived from salicylic acid, the sorbate derived from sorbic acid, the stearate derived from stearic acid, the succinate derived from succinic acid, the tartrate derived from tartaric acid, the toluene-p-sulphonate derived from p-toluene sulphonic acid, and the like. Such salts may be formed by procedures well known and described in the art.
Other acids such as oxalic acid, which may not be considered pharmaceutically acceptable, may be useful in the preparation of salts useful as intermediates in obtaining a chemical compound of the invention and its pharmaceutically acceptable acid addition salt.
Examples of pharmaceutically acceptable cationic salts of a chemical compound of the invention include, without limitation, the sodium, the potassium, the calcium, the magnesium, the zinc, the aluminium, the lithium, the choline, the lysine, and the ammonium salt, and the like, of a chemical compound of the invention containing an anionic group. Such cationic salts may be formed by procedures well known and described in the art.
In the context of this invention the “onium salts” of N-containing compounds are also contemplated as pharmaceutically acceptable salts. Preferred “onium salts” include the alkyl-onium salts, the cycloalkyl-onium salts, and the cycloalkylalkyl-onium salts.
Examples of pre- or prodrug forms of the chemical compound of the invention include examples of suitable prodrugs of the substances according to the invention include compounds modified at one or more reactive or derivatizable groups of the parent compound. Of particular interest are compounds modified at a carboxyl group, a hydroxyl group or an amino group. Examples of suitable derivatives are esters or amides.
The chemical compound of the invention may be provided in dissoluble or indissoluble forms together with a pharmaceutically acceptable solvent such as water, ethanol, and the like. Dissoluble forms may also include hydrated forms such as the monohydrate, the dihydrate, the hemihydrate, the trihydrate, the tetrahydrate, and the like. In general, the dissoluble forms are considered equivalent to indissoluble forms for the purposes of this invention.
Steric Isomers
The chemical compounds of the present invention may exist as enantiomers in (+) and (-) forms as well as in racemic forms (+). The racemates of these isomers and the individual isomers themselves are within the scope of the present-invention.
Racemic forms can be resolved into the optical antipodes by known methods and techniques. One way of separating the isomeric salts is by use of an optically active acid, and liberating the optically active amine compound by treatment with a base. Another method for resolving racemates into the optical antipodes is based upon chromatography on an optical active matrix. Racemic compounds of the present invention can thus be resolved into their optical antipodes, e.g., by fractional crystallisation of d- or |- (tartrates, mandelates or camphorsulphonate) salts for example.
The chemical compounds of the present invention may also be resolved by the formation of diastereomeric amides by reaction of the chemical compounds of the oo present invention with an optically active activated carboxylic acid such as that derived from (+) or (-) phenylalanine, (+) or (-) phenylglycine, (+) or (-) camphanic acid or by the formation of diastereomeric carbamates by reaction of the chemical compound of the present invention with an optically active chloroformate or the like.
Additional methods for the resolving the optical isomers are known in the art.
Such methods include those described by Jaques J, Collet A, & Wilen Sin “Enantiomers, Racemates, and Resolutions”, John Wiley and Sons, New York (1981). : Optical active compounds can also be prepared from optical active starting materials."
Furthermore, the compounds of the present invention may exist in cis or trans configurations as well as in mixtures thereof. The substituent R® and the substituent
R? of the piperidine skeleton of formula | may in particular be in cis or trans configuration relative to each another. In one embodiment of the invention the substituents R® and R* are in trans configuration. In another embodiment of the invention the substituents R® and R* are in cis configuration. The invention includes all such isomers and any mixtures thereof including racemic mixtures.
Labelled Compounds
The compounds of the invention may be used in their labelled or unlabelled form. In the context of this invention "label" stands for the binding of a marker to the compound of interest that will allow easy quantitative detection of said compound.
The labelled compounds of the invention may be useful as diagnostic tools, radio tracers, or monitoring agents in various diagnostic methods, and for in vivo receptor imaging.
The labelled isomer of the invention preferably contains at least one radio- nuclide as a label. Positron emitting radionuclides are all candidates for usage. In the context of this invention the radionuclide is preferably selected from 2H (deuterium), *H (tritium), °C, Yc, 13"), 129], 123) and 8F.
The physical method for detecting the labelled isomer of the present invention maybe selected from Position Emission Tomography (PET), Single Photon Imaging
Computed Tomography (SPECT), Magnetic Resonance Spectroscopy (MRS),
Magnetic Resonance Imaging (MRI), and Computed Axial X-ray Tomography (CAT), or combinations thereof.
Methods of Preparation
The chemical compounds of the invention may be prepared by conventional methods for chemical synthesis, e.g. those described in the working examples. The starting materials for the processes described in the present application are known or
0 may readily be prepared by conventional methods from commercially available chemicals.
Also one compound of the invention can be converted to another compound of the invention using conventional methods.
The end products of the reactions described herein may be isolated by conventional techniques, e.g. by extraction, crystallisation, distillation, chromatography, etc.
Biological Activity
Compounds of the invention may be tested for their ability to inhibit reuptake of the monoamines dopamine, noradrenaline and serotonin in synaptosomes eg such as described in WO 97/30997.
Thus in a further aspect, based on the balanced activity observed in these tests, the compounds of the invention are considered useful in the treatment the treatment, prevention or alleviation of a disease or a disorder or a condition of a mammal, includ- ing a human, which disease, disorder or condition is responsive to inhibition of : monoamine neurotransmitter re-uptake in the central nervous system.
In a special embodiment, the compounds of the invention are considered useful for the treatment, prevention or alleviation of mood disorder, depression, atypical depression, major depressive disorder, dysthymic disorder, bipolar disorder, bipolar disorder, bipolar Il disorder, cyclothymic disorder, mood disorder due to a general medical condition, substance-induced mood disorder, pseudodementia, Ganser’s syndrome, obsessive compulsive disorder, panic disorder, panic disorder without agoraphobia, panic disorder with agoraphobia, agoraphobia without history of panic disorder, panic attack, memory deficits, memory loss, attention deficit hyperactivity disorder, obesity, anxiety, generalized anxiety disorder, eating disorder, Parkinson's disease, parkinsonism, dementia, dementia of ageing, senile dementia, Alzheimer's disease, acquired immunodeficiency syndrome dementia complex, memory dysfunction in ageing, social phobia, post-traumatic stress disorder, acute stress . disorder, drug addiction, drug misuse, cocaine abuse, nicotine abuse, tobacco abuse, alcohol addiction, alcoholism, pain, inflammatory pain, neuropathic pan, migraine pain, tension-type headache, chronic tension-type headache, pain associated with : depression, fibromyalgia, arthritis, osteoarthritis, rheumatoid arthritis, back pain, cancer pain, irritable bowel pain, irritable bowel syndrome, post-operative pain, post- stroke pain, drug-induced neuropathy, diabetic neuropathy, sympathetically- maintained pain, trigeminal neuralgia, dental pain, myofacial pain, phantom-limb pain, bulimia, premenstrual syndrome, late luteal phase syndrome, post-traumatic syndrome, chronic fatigue syndrome, urinary incontinence, stress incontinence, urge incontinence, nocturnal incontinence, premature ejaculation, erectile difficulty,
anorexia nervosa, sleep disorders, autism, mutism, trichotillomania, narcolepsy, post- stroke depression, stroke-induced brain damage, stroke-induced neuronal damage or
Gilles de la Tourettes disease. In a preferred embodiment, the compounds are considered useful for the treatment, prevention or alleviation of depression.
It is at present contemplated that a suitable dosage of the active pharmaceutical ingredient (API) is within the range of from about 0.1 to about 1000 mg API per day, more preferred of from about 10 to about 500 mg API per day, most preferred of from about 30 to about 100 mg API per day, dependent, however, upon the exact mode of administration, the form in which it is administered, the indication considered, the subject and in particular the body weight of the subject involved, and further the preference and experience of the physician or veterinarian in charge.
Preferred compounds of the invention show a biological activity in the sub- micromolar and micromolar range, i.e. of from below 1 to about 100 uM.
Pharmaceutical Compositions "In another aspect the invention provides novel pharmaceutical compositions comprising a therapeutically effective amount of the chemical compound of the invention.
While a chemical compound of the invention for use in therapy may be administered in the form of the raw chemical compound, it is preferred to introduce the active ingredient, optionally in the form of a physiologically acceptable salt, in a pharmaceutical composition together with one or more adjuvants, excipients, carriers, buffers, diluents, and/or other customary pharmaceutical auxiliaries.
In a preferred embodiment, the invention provides pharmaceutical compositions comprising the chemical compound of the invention, or a pharmaceutically acceptable salt or derivative thereof, together with one or more pharmaceutically acceptable carriers therefore, and, optionally, other therapeutic and/or prophylactic ingredients, know and used in the art. The carrier(s) must be “acceptable” in the sense of being compatible with the other-ingredients of the formulation and not harmful to the -. recipient thereof.
Pharmaceutical compositions of the invention may be those suitable for oral, rectal, bronchial, nasal, pulmonal, topical (including buccal and: sub-lingual), transdermal, vaginal or parenteral (including cutaneous, subcutaneous, intramuscular, intraperitoneal, intravenous, intraarterial, intracerebral, intraocular injection or infusion) administration, or those in a form suitable for administration by inhalation or insufflation, including powders and liquid aerosol administration, or by sustained release systems. Suitable examples of sustained release systems include semipermeable matrices of solid hydrophobic polymers containing the compound of the invention, which matrices may be in form of shaped articles, e.g. films or microcapsules.
: Mn
The chemical compound of the invention, together with a conventional adjuvant, carrier, or diluent, may thus be placed into the form of pharmaceutical compositions and unit dosages thereof. Such forms include solids, and in particular tablets, filled capsules, powder and pellet forms, and liquids, in particular aqueous or non-aqueous solutions, suspensions, emulsions, elixirs, and capsules filled with the same, all for oral use, suppositories for rectal administration, and sterile injectable solutions for parenteral use.
Such pharmaceutical compositions and unit dosage forms thereof may comprise conventional ingredients in conventional proportions, with or without additional active compounds or principles, and such unit dosage forms may contain any suitable effective amount of the active ingredient commensurate with the intended daily dosage range to be employed.
The chemical compound of the present invention can be administered in a wide variety of oral and parenteral dosage forms. It will be obvious to those skilled in the art that the following dosage forms may comprise, as the active component, either a chemical compound of the invention or a pharmaceutically acceptable salt of a chemical compound of the invention.
For preparing pharmaceutical compositions from a chemical compound of the present invention, pharmaceutically acceptable carriers can be either solid or liquid.
Solid form preparations include powders, tablets, pills, capsules, cachets, suppositories, and dispersible granules. A solid carrier can be one or more substances which may also act as diluents, flavouring agents, solubilizers, lubricants, suspending agents, binders, preservatives, tablet disintegrating agents, or an encapsulating material. in powders, the carrier is a finely divided solid, which is in a mixture with the finely divided active component.
In tablets, the active component is mixed with the camier having the necessary binding capacity in suitable proportions and compacted in the shape and size desired.
The powders and tablets preferably contain from five or ten to about seventy percent of the active compound. Suitable carriers are magnesium carbonate, oo magnesium stearate, talc, sugar, lactose, pectin, dextrin, starch, gelatin, tragacanth, methylcellulose, sodium carboxymethylcellulose, a low melting wax, cocoa butter, and the like. The term “preparation” is intended to include the formulation of the active compound with encapsulating material as carrier providing a capsule in which the active component, with or without carriers, is surrounded by a carrier, which is thus in association with it. Similarly, cachets and lozenges are included. Tablets, powders, capsules, pills, cachets, and lozenges can be used as solid forms suitable for oral administration.
For preparing suppositories, a low melting wax, such as a mixture of fatty acid glyceride or cocoa butter, is first melted and the active component is dispersed homogeneously therein, as by stirring. The molten homogenous mixture is then poured into convenient sized moulds, allowed to cool, and thereby to solidify.
Compositions suitable for vaginal administration may be presented as pessaries, tampons, creams, gels, pastes, foams or sprays containing in addition to the active ingredient such carriers as are known in the art to be appropriate.
Liquid preparations include solutions, suspensions, and emulsions, for example, water or water-propylene glycol solutions. For example, parenteral injection liquid preparations can be formulated as solutions in aqueous polyethylene glycol solution.
The chemical compound according to the present invention may thus be formulated for parenteral administration (e.g. by injection, for example bolus injection or continuous infusion) and may be presented in unit dose form in ampoules, pre-filled syringes, small volume infusion or in multi-dose containers with an added preservative. ~The compositions may take such forms as suspensions, solutions, or emulsions in oily or aqueous vehicles, and may contain formulation agents such as suspending, stabilising and/or dispersing agents. Alternatively, the active ingredient may be in powder form, obtained by aseptic isolation of sterile solid or by lyophilization from solution, for constitution with a suitable vehicle, e.g. sterile, pyrogen-free water, before use.
Aqueous solutions suitable for oral use can be prepared by dissolving the active component in water and adding suitable colorants, flavours, stabilising and thickening agents, as desired.
Aqueous suspensions suitable for oral use can be made by dispersing the finely divided active component in water with viscous material, such as natural or synthetic gums, resins, methylcellulose, sodium carboxymethyicellulose, or other well known suspending agents.
Also included are solid form preparations, intended for conversion shortly before use to liquid form preparations for oral administration. Such liquid forms include solutions, suspensions, and emulsions. In addition to the active component such : preparations may comprise colorants, flavours, stabilisers, buffers, artificial and natural sweeteners, dispersants, thickeners, solubilizing agents, and the like.
For topical administration to the epidermis the chemical compound of the invention may be formulated as ointments, creams or lotions, or as a transdermal patch.
Ointments and creams may, for example, be formulated with an aqueous or oily base with the addition of suitable thickening and/or gelling agents. Lotions may be formulated with an aqueous or oily base and will in general also contain one or more emulsifying agents, stabilising agents, dispersing agents, suspending agents, thickening agents, or colouring agents.
Compositions suitable for topical administration in the mouth include lozenges comprising the active agent in a flavoured base, usually sucrose and acacia or tragacanth; pastilles comprising the active ingredient in an inert base such as gelatin and
Claims (15)
- - CLAIMS~ 1. A piperidine derivative of the Formula I; R 3 SN R \ 4 R or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof, wherein R' represents hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl or 2- hydroxyethyl; R? represents -C(=0)-O-R® or -CH,-O-R®; wherein R® represents hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkylalkyl; R* represents RP TC wherein R? and R® independently of each other represents halo or trifluoromethyl with the proviso that the mixture of isomers is not (¥)-cis/trans-1-methyl-3-methoxycarbonyl-4-(3,4-dichlorophenyl)-piperidine or (¥)-cis/trans-1-methyl-3-hydroxymethyi-4-(3,4-dichlorophenyl)-piperidine.
- 2. The chemical compound of claim 1, wherein R' represents hydrogen or alkyl.
- 3. The chemical compound of either of claims 1-2, wherein R® and R® independently of each other represent halo.
- 4. The chemical compound of any one of claims 1-3, wherein R?® represents -C(=0)-O-R°,
- 5. The chemical compound of any one of claims 1-3, wherein R® represents -CH,-O-R°.24 oo
- 6. The chemical compound of any one of claims 1-5, wherein R® represents hydrogen, alkyl or cycloalkylalkyl.
- 7. The chemical compound of claim 1, wherein R' represents hydrogen or alkyl; R°® represents hydrogen, alkyl or cycloalkylalkyl; and R? and R® independently of each other represent halo.
- 8. The chemical compound of claim 1, wherein R’ represents hydrogen or alkyl; R® represents -CH»-O-R%; R° represents alkyl or cycloalkylalkyl; and R? and R® independently of each other represent halo.
- 9. The chemical compound of claim 1, which is 1-methyl-4-(3,4-dichlorophenyl)-piperidine-3-carboxylic acid methyl ester; 1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; - 20 1-methyl-3-cyclopropylmethoxymethyi-4-(3,4-dichlorophenyl)-piperidine; 1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; " 3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; 3-cyclopropylmethoxymethyi-4-(3,4-dichlorophenyl)-piperidine; or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof.
- 10. The chemical compound of claim 1, which is (¥)-Cis-1-methyl-4-(3,4-dichlorophenyl)-piperidine-3-carboxylic acid methyl ester; (+)-Trans-1-methyl-4-(3,4-dichlorophenyl)-piperidine-3-carboxylic acid methyl ester, (+)-Cis-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (£)-Trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine (-)-Trans-1-methyl-3-hydroxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine;(£)-Trans-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (#)-Trans-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1 -methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine: (-)-Cis-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-cyclopropylmethoxymethyl-4- (3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methy}-3-cyclopropylmethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyi)-piperidine; (-)-Trans-1-methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyi)-piperidine; "© (-)-Trans-1-methyl-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-1-methyl-3-cyclopropyimethoxymethyl-4-(3,4-dichiorophenyl)-piperidine; (-)-Trans-1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-1-methyl-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-isobutoxymethyl-4~(3,4-dichlorophenyl)-piperidine; (+)-Trans-1-methyl-3-cyclopropyimethoxymethyl-4-(3,4-dichlorophenyl)- piperidine; (-)-Cis-1 -methyl-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-methoxymethyi-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; ‘ (+)-Cis-3-cyclopropylmethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-3-cyclopropylmethoxymethyl-4-(3,4-dichiorophenyl)-piperidine; (+)-Trans-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-ethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; - (-)-Trans-3-methoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-cyclopropyimethoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-cyclopropylmethoxymethyl-4~(3,4-dichlorophenyl)-piperidine; (+)-Cis-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Cis-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (+)-Trans-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; (-)-Trans-3-isobutoxymethyl-4-(3,4-dichlorophenyl)-piperidine; or a pharmaceutically acceptable salt thereof.
- 11. A pharmaceutical composition, comprising a therapeutically effective amount of a compound of any one of claims 1-10, or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof, together with at least one pharmaceutically acceptable carrier, excipient or diluent.
- 12. Use of the chemical compound of any of claims 1-10, or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof, for the manufacture of a medicament.
- 13. The use according to claim 12, for the manufacture of a pharmaceutical - pharmaceutical composition for the treatment, prevention or alleviation of a disease or a disorder or a condition of a mammal, including a human, which disease, disorder or condition is responsive to inhibition of monoamine neurotransmitter re-uptake in the central nervous system.
- 14. The use according to claim 12, wherein the disease, disorder or condition is mood disorder, depression, atypical depression, major depressive disorder, dysthymic disorder, bipolar disorder, bipolar | disorder, bipolar Il disorder, cyclothymic disorder, mood disorder due to a general medical condition, substance-induced mood disorder, pseudodementia, Ganser’s syndrome, obsessive compulsive disorder, panic disorder, panic disorder without agoraphobia, panic disorder with agoraphobia, agoraphobia without history of panic disorder, panic attack, memory deficits, memory loss, attention deficit hyperactivity disorder, obesity, anxiety, generalized anxiety disorder, eating disorder, Parkinson's disease, parkinsonism, dementia, dementia of ageing, senile dementia, Alzheimer’s disease, acquired immunodeficiency syndrome dementia complex, memory dysfunction in ageing, social phobia, post-traumatic . stress disorder, acute stress disorder, drug addiction, drug misuse, cocaine abuse, nicotine abuse, tobacco abuse, alcohol addiction, alcoholism, pain, inflammatory pain, neuropathic pan, migraine pain, tension-type headache, chronic tension-type headache, pain associated with depression, fibromyalgia, arthritis, osteoarthritis, rheumatoid arthritis, back pain, cancer pain, irritable bowel pain, irritable bowel syndrome, post-operative pain, post-stroke pain, drug- induced neuropathy, diabetic neuropathy, sympathetically-maintained pain, trigeminal neuralgia, dental pain, myofacial pain, phantom-limb pain, bulimia, premenstrual syndrome, late luteal phase syndrome, post-traumatic syndrome, chronic fatigue syndrome, urinary incontinence, stress incontinence, urge incontinence, nocturnal incontinence, premature ejaculation, erectile difficulty, anorexia nervosa, sleep disorders, autism, mutism, trichotillomania, narcolepsy, post-stroke depression, stroke-induced brain damage, stroke-induced neuronal damage, or Gilles de la Tourettes disease.: 27 Co
- 15. A method for treatment, prevention or alleviation of a disease or a disorder or a condition of a living animal body, including a human, which disorder, disease or condition is responsive to inhibition of monoamine neurotransmitter re-uptake in the central nervous system, which method comprises the step of administering to such a living animal body in need thereof a therapeutically effective amount of a compound according to any one of the claims 1-10, or any of its isomers or any mixture of its isomers, or a pharmaceutically acceptable salt thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DKPA200201689 | 2002-11-01 |
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| Publication Number | Publication Date |
|---|---|
| ZA200502498B true ZA200502498B (en) | 2006-06-28 |
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| ZA200502498A ZA200502498B (en) | 2002-11-01 | 2005-03-29 | Novel pireidine derivatives and their use as monoamine neurotransmitter re-uptake inhibitors |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1705644A (en) |
| IS (1) | IS7866A (en) |
| UA (1) | UA79484C2 (en) |
| ZA (1) | ZA200502498B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI410420B (en) * | 2008-02-05 | 2013-10-01 | Dainippon Sumitomo Pharma Co | Benzylpiperidine compounds |
-
2003
- 2003-10-30 UA UAA200501948A patent/UA79484C2/en unknown
- 2003-10-30 CN CNA2003801013422A patent/CN1705644A/en active Pending
-
2005
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- 2005-05-25 IS IS7866A patent/IS7866A/en unknown
Also Published As
| Publication number | Publication date |
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| UA79484C2 (en) | 2007-06-25 |
| IS7866A (en) | 2005-05-25 |
| CN1705644A (en) | 2005-12-07 |
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