CN1820754A - Highly selective norepinephrine reuptake inhibitors and methods of using the same - Google Patents

Highly selective norepinephrine reuptake inhibitors and methods of using the same Download PDF

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CN1820754A
CN1820754A CN 200510136906 CN200510136906A CN1820754A CN 1820754 A CN1820754 A CN 1820754A CN 200510136906 CN200510136906 CN 200510136906 CN 200510136906 A CN200510136906 A CN 200510136906A CN 1820754 A CN1820754 A CN 1820754A
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reboxetine
norepinephrine
disorder
reuptake
administration
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E·H·F·翁
S·阿莫德
R·C·马歇尔
R·麦克阿瑟
D·P·泰勒
L·伯格森
P·塞特拉
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Pharmacia and Upjohn Co
Pharmacia and Upjohn Co LLC
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Abstract

Methods and compositions for treating humans suffering from, or preventing a human from suffering, a physiological or psychiatric disease, disorder, or a condition where inhibiting reuptake of norepinephrine is a benefit are disclosed. The compositions comprise a compound having a pharmacological selectivity of serotonin (Ki)/norepinephrine (Ki) of at least about 5000. Examples of such compounds include reboxetine, and more preferably optically pure (S,S) enantiomer of reboxetine. The methods generally include administration of a therapeutic amount of such compositions. Also disclosed are preparations of a medicament from the composition, and uses of the composition in a manufacture of the medicament to treat a human suffering from, or preventing a human from suffering, a physiological or psychiatric disease, disorder, or condition.

Description

Highly selective norepinephrine reuptake inhibitors and uses thereof
The present invention is to be the dividing an application of Chinese patent application 2004101045222 on June 22nd, 2000 applying date, and the denomination of invention of original application is " highly selective norepinephrine reuptake inhibitors and uses thereof ".
Background of invention
Invention field
The present invention relates to treat the method for diseased individuals various disease states, the reuptake that suppresses norepinephrine in described morbid state can bring benefit.Definitely, the present invention relates to comprise with chemical compound, for example (S, S)-reboxetine is to the Therapeutic Method of individual administration, wherein this chemical compound is higher than the serotonin reuptake position about the pharmacology selectivity at norepinephrine reuptake position.The invention still further relates to the medication preparation that contains this compound compositions and contain said composition.
The brief description of relevant technologies
Obstacle on depression, spirit, behavior and the neurological of a lot of types is all risen in the disorder of gyrus road, and described gyrus road utilizes some monoamine neurotransmitter to pass on signal.The monoamine neurotransmitter for example comprises norepinephrine (noradrenaline), serotonin (5-HT) and dopamine.The norepinephrine that is lower than normal level is relevant with various symptoms, comprises the shortage of energy, motivation and life interest.Thereby the norepinephrine of normal level is to keep the useful driving force and the key element of ability.
These neurotransmitteies are crossed little crack (being synaptic space) from the neuron end, combine with second lip-deep acceptor molecule of neuron.This combination causes in the cell and changes that these change replying of initiation or activation postsynaptic neuron or change.Inactivation mainly occurs in neurotransmitter transhipment (being reuptake) and gets back in the presynaptic neuron.Noradrenaline can transmit the obstacle that causes unusually on various types of depressions, spirit, behavior and the neurological, belongs to the various symptoms of the shortage that comprises energy, motivation and life interest.Generally referring to R.J.Baldessarini " medicine of psychiatric disturbance and treatment: depressed and manic " " the therapeutic pharmacological basis of Goodman and Gilman) " (" Durgs and the Treatment ofPsychiatric Disorders:Depression and Mania ", Goodman andGilman ' s The Pharmacological Basis of Therapeutics), McGraw-Hill, NY, NY, pp.432-439 (1996).
Reboxetine (being the 2-[(2-ethoxy phenoxy) (phenyl) methyl] morpholine) concentration of rising physiologically active norepinephrine for example by the reuptake that prevents norepinephrine.Reboxetine is a kind of NRI, has shown that the short-term (promptly being less than for eight weeks) to depression is effective with long-term treatment.In fact, reboxetine has shown that adult and gerontal patient are had the effect that is similar to generally acknowledged antidepressant fluoxetine, imipramine and desipramine.Referring to S.A.Montgomery " reboxetine: " " psychopharmacology) " (Reboxetine:Additional Benefits to theDepressed Patient to the additional benefit of depressive patient, Psychopharmocol) (Oxf) 11:4 Suppl., S9-15 (summary) (1997).
Antidepressants are divided into some " generations " sometimes.The first generation comprises oxidase inhibitor (for example isocarboxazid and phenylhydrazine) and tricyclic antidepressants medicine (for example imipramine).Second filial generation antidepressants comprise such as chemical compounds such as mianserin and trazodones.The third generation comprises the medicine (for example fluoxetine, Sertraline, paroxetine and reboxetine) that is called the selectivity reuptake inhibitor.This class medicine is characterised in that being considered to the unique a kind of relative selectivity effect with depressed relevant three kinds of main monoamine systems (being 5-HT (serotonin), noradrenaline (norepinephrine) and dopamine)." APP psychopharmacology textbook " (APP Textbook ofPsychopharmacology) (A.F.Schatzberg and C.B.Nemeroff), American Psychiatric Press, 2d.ed., (1998); " psychiatry, neurological and neuroscience dictionary " (Lexicon of Psychiary, Neurology and theNeurosciences) (F.J.Ayd, Jr.) Williams and Wilkins (1995).What prove reboxetine antidepressant curative effect is that it prevents resperine to bring out the ability of mice blepharospasm and hypothermia, the adjusting of B-adrenergic receptor decrement and noradrenaline-coupling adenyl cyclase desensitization.Referring to M.Brunello and G.Racagni " noradrenaline reuptake inhibitor development principle " " human spirit pharmacology " (" Rationale for the Developmentof Noradrenaline Reuptake Inhibitors ", HumanPsychopharmacology), vol.13, S-13-519, Supp.13-519 (1998).
According to the investigation of Brian E.Leonard, desipramine, maprotiline and lofepramine are the reliable relative selectivity NRI of curative effect.These medicines increase the brain noradrenaline, thereby can alleviate depression.Mianserin and mirtazapine are by means of retardance presynaptic α 2-adrenoreceptor, the utilizability of raising noradrenaline also shows the effect of antidepressant sample.And then oxaprotiline, fezolamine and tomoxetine are the effective as selective NRI, and they lack the neurotransmitter receptor interaction, thereby can not cause the peculiar a lot of side effect of classical tricyclic antidepressants.Referring to Brian E.Leonard " the role comment of noradrenaline in depression " " psychopharmacology magazine " (" The Roleof Noradrenaline in Depression:A Review ", Journal ofPsychopharmacology), vol.11, no.4 (Suppl.), pp.S39-S47 (1997).
Reboxetine also is a kind of selectivity NRI, produces the relevant side effect of less and classical tricyclic antidepressants administration.What prove reboxetine antidepressant curative effect is that it prevents resperine to bring out the ability of mice blepharospasm and hypothermia, the adjusting of B-adrenergic receptor decrement and noradrenaline-coupling adenyl cyclase desensitization.Referring to M.Brunello and G.Racagni " noradrenaline reuptake inhibitor development principle " " human spirit pharmacology " (" Rationale for the Development ofNoradrenaline Reuptake Inhibitors ", HumanPsychopharmacology), vol.13 (Supp.) 13-519 (1998).
The reboxetine general description is at United States Patent(USP) Nos.s such as Melloni 4,229,449,5,068,433 and 5,391,735 and GB 2,167,407 in, its disclosure is quoted at this as a reference.Chemically, reboxetine has two chiral centres, therefore exists two kinds of enantiomers of diastereomer right, shown in the following isomer (I) to (IV):
Figure A20051013690600061
(R, R) 2-[(2-ethoxy phenoxy) (phenyl) methyl] morpholine
(S, S) 2-[(2-ethoxy phenoxy) (phenyl) methyl] morpholine
Figure A20051013690600071
(R, S) 2-[(2-ethoxy phenoxy) (phenyl) methyl] morpholine
Figure A20051013690600072
(S, R) 2-[(2-ethoxy phenoxy) (phenyl) methyl] morpholine
There is the optically active form in a lot of organic compound, and just they have the ability of Plane of rotation polarized light flat.When describing activity of optically active compounds, prefix R and S are used for representing the absolute configuration of molecule about its chiral centre.The rotation symbol of prefix D and L or (+) and (-) appointed compound linearly polarized light, L or (-) illustrate that this chemical compound is left-handed.On the contrary, the chemical compound that has prefix D or (+) is dextral.There is not mutual relation between the nomenclature about absolute stereo chemistry and enantiomer rotation.Thereby D-lactic acid is identical with (-)-lactic acid, and L-lactic acid is identical with (+)-lactic acid.About given chemical constitution, every pair of enantiomer all is equal to, but they are non-overlapped mirror images each other.Specific stereoisomer also may be called as enantiomer, and this class mixture of isomers often is called enantiotopic or racemic mixture.
Spatial chemistry purity is significant in pharmaceutical field, and all there is chirality in a lot of the most frequently used medicines.For example, the effectiveness of the L-enantiomer of β-adrenal gland's energy blocker Propranolol is known stronger 100 times than its D-enantiomer.In addition, optical purity is significant at drug world, brings illeffects because have been found that some isomer, rather than favourable or inertia effect.For example, when being used to control the pregnancy duration morning sickness, the D-enantiomer of Thalidomide it is believed that it is tranquilizer safely and effectively, and its corresponding L-enantiomer it is believed that to have strong teratogenesis.
When a molecular memory during, have four kinds of possible stereoisomers at two chiral centres: (R, R), (S, S), (R, S) and (S, R).Wherein, (R, R) and (S S) is the example of a pair of enantiomer (each other mirror image) each other, and their share chemical property and fusing point usually, just as other enantiomers arbitrarily to the same.But, (R, R) and (S, mirror image S) can not overlap (R, S) and (S, R) on.This relation is called diastereoisomeric, and (S, S) molecule is (R, the S) diastereomer of molecule, and (R, R) molecule is (S, R) diastereomer of molecule.
At present, reboxetine commercial only can obtain enantiomer (R, R) and (S, 1: 1 raceme S) mixes, the adopted name that this paper relates to " reboxetine " refers to this enantiotopic or racemic mixture.There is EDRONAX the commercial goods of reboxetine TM, PROLIFT TM, VESTRA TMAnd NOREBOX TMAs mentioned above, reboxetine has shown the treatment that can be used for people's depression.The reboxetine of oral administration is easy to absorb, and administration every day requires one or twice.Preferred adult's dosage every day about 8 to about 10 milligrams of (mg) scopes.Reboxetine is less to child's effective every day of dosage, usually about 4 to about 5mg scope.But, must after the characteristic of considering other drug treatment that weight in patients, patient may take, particular obstacle and seriousness and the every other situation of patient, be determined by the attending doctor about every patient's optimum every day of dosage.
But, the administration of reboxetine may cause institute unwanted side effect and other the unwanted effects relevant with drug-drug interactions, for example giddy, insomnia, dizziness, blood pressure change, perspiration, gastrointestinal dysfunction, male sexual disorder, some anticholinergic sample effect (for example tachycardia and urine retention).Have been found that the reason that this class side effect takes place is that partly reboxetine lacks sufficiently high selectivity to suppressing norepinephrine reuptake.In other words, reboxetine blocks the reuptake of other monoamines, resembles serotonin and dopamine, and its degree is enough to cause unwanted side effect.
It is reported that other antidepressant have higher pharmacology selectivity to suppressing norepinephrine reuptake.For example, oxaprotiline has the pharmacology selectivity, the K that compares with serotonin reuptake about suppressing norepinephrine reuptake iThe ratio of value is about 4166.Corresponding pharmacology selectivity is about 377 about desipramine, is about 446 about maprotiline.Referring to Elliott Richelson and Michael Pfenning " the biogenic amine picked-up of antidepressant and allied compound retardance rat brain synaptosomes: most of antidepressant selectivity retardance norepinephrine uptakes " " European pharmacology's magazine " (" Blockade by Antidepressants and Related Compoundsof Biogenic Amine Uptake in Rat Brain Synaptosomes:MostAntidepressants Selectively Block Norepinephrine Uptake ", European Journal of Pharmacology), vol.14, pp.277-286 (1984).Although oxaprotiline, desipramine and maprotiline have relative high selectivity, but these and other known drug blocks other neurotransmitter receptors inadvisablely, and its degree is enough to also cause disadvantageous side effect.
Therefore, the method of diseased individuals various disease states need be treated in this area, the reuptake that suppresses norepinephrine in described morbid state can bring benefit, reduces or eliminates the disadvantageous side effect relevant with conventional NRI simultaneously.Also need selectivity to suppress norepinephrine but not other neurotransmitteies, resemble the method for the reuptake of serotonin and dopamine.Specifically, this area needs high selectivity (at a reuptake position), specific (other receptors are not had activity) and effective NRI.In addition, also need to contain pharmaceutical composition high selectivity and effective NRI.And then, need contain the medicine of this class pharmaceutical composition and this based composition purposes in this class medicine is made.
Summary of the invention
The present invention relates generally to treat or prevent the compositions and the method for various people's diseases, inhibitory action to norepinephrine reuptake in described disease can be brought benefit, more particularly, wherein can bring benefit to selectivity, specificity and effective inhibitory action of norepinephrine.Or rather, the present invention relates to the effective treatment or the prevention of this class disease, comprise optically pure (S, S) chemical compound such as stereoisomer is to people's administration such as reboxetine or its.
Therefore, one embodiment of the present invention relate to the method that selectivity suppresses norepinephrine reuptake, and this method comprises that said composition comprises a kind of like this chemical compound, its serotonin (K with the compositions of effective dose on the therapeutics step to individual administration i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000.
Another embodiment of the invention relates to people who suffers from disease or the method for preventing described disease for the treatment of, the reuptake that wherein suppresses norepinephrine can bring benefit, this method comprises the step with the compositions administration of effective dose on the therapeutics, said composition comprises a kind of like this chemical compound, its serotonin (K i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000.
Another embodiment of the invention relates to from the preparation of compositions medicine, and said composition comprises a kind of like this chemical compound, its serotonin (K i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000, this medicine is used for the treatment of or prevents at least a nervous system disorders that is selected from down group: assuetude disturbance (comprises by ethanol, nicotine and other psychoactive materials cause) and withdrawal syndrome, adjustment disorder (comprises depressibility mental state, anxiety, mixed type anxiety and depressibility mental state, conduct disorder and mixed type behavior and mental state imbalance), study relevant and mental disorder (comprising Alzheimer) with aging, anorexia nervosa, apathy, arouse attention by the general medicine condition and to lax (or other cognitions) obstacle, distractibility hyperkinetic syndrome (ADHD), the bipolarity mental disorder, bulimia nervosa, chronic fatigue syndrome, chronic or acute psychentonia, chronic pain, behavior disorder, cyclothymic disorder, depressed (comprising the depressed and teenage depression of adolescence), dysthymia, fibromyalgia and other somatoform disorderses (comprise the somatization obstacle, conversive disorder, pain, hypochondria, body dysmorphic disorder, indiscriminate somatoform disorders and somatopathy sample NOS), generalized-anxiety disorder (GAD), incontinence (is a stress incontinence, genuine stress incontinence and mixed type incontinence), suck obstacle, nosotoxicosis (alcohol addiction), manic, migraine, fat (just reducing fat or overweight patient's body weight), obsessive idea and behavior disorder and relevant obstacles, the antagonism obstacle, panic disorder, peripheral neurophaty, post-traumatic stress disorder, premenstrual dysphoric disease (being premenstrual syndrome and late luteal phase dysphoric disorder), psychosis (comprises schizophrenia, Schizoaffective mental disorder and schizophreniform disorder), social phobia (comprising social anxiety disease), specific dysplasia, the selective serotonin reuptake suppresses (SSRI) " tired " syndrome (just after initial gratifying response phase to the SSRI therapy, the patient can not keep gratifying response) and TIC disease (being Tourette's syndrome).
Another embodiment of the invention relates to the purposes of compositions in medicine is made, and said composition comprises a kind of like this chemical compound, its serotonin (K i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000, this medicine is used for the treatment of or prevents at least a above-mentioned nervous system disorders.
Serotonin (K i)/norepinephrine (K i) the pharmacology selectivity to be at least about 5,000 examples of compounds be that optically pure (S, S) reboxetine are substantially free of its (R, R) stereoisomer.(S, S) individuality of reboxetine treatment can not experience with (R is R) with (S, S) the relevant adverse side effect of racemic mixture administration of reboxetine with optical voidness.Therefore the present invention comprises that (S, S) reboxetine suppresses the reuptake of norepinephrine to people's administration with selectivity, thereby controls, reduces or eliminates the detrimental effect that is caused by the administration of reboxetine racemate with optical voidness.
More particularly, another embodiment of the invention relates to the method for the treatment of or preventing people's disease, and the reuptake that wherein suppresses norepinephrine can bring benefit.This method comprises therapeutic dose, is generally about 0.5 to about 10mg/ day optical voidness (S, S) step of reboxetine or its pharmaceutically acceptable salt administration.It is optically pure that (S, S) reboxetine is substantially free of (R, R) reboxetine.
It is optically pure that (S, (R is R) with (S, S) treatment of reboxetine racemic mixture or prevention method in employing before S) reboxetine is better than.Exactly, have been found that to use and contain optical voidness (S, S) compositions of the reboxetine effect ratio that suppresses norepinephrine reuptake contains that (R is R) with (S, S) the combination object height about 5 of reboxetine racemic mixture is to about 8.5 times.Therefore, utilize lower dosage can realize the retardation of reuptake.Therefore, (S, habitual every day of the dosage that the S) use of reboxetine, the present invention can significantly reduce racemic mixture (being commercial available reboxetine) reaches about 50% to about 80% because optical voidness.In addition, (S, S) treatment of reboxetine can cause the unwanted adverse side effect relevant with treatment of institute still less, because (S, S) reboxetine is all higher with effectiveness about the selectivity that suppresses norepinephrine reuptake to adopt optical voidness.
Another embodiment of the invention relates to the method for the treatment of or preventing nervous system disorders, comprise that wherein this obstacle is at least a adjustment disorder with the raceme reboxetine of effective dose on the therapeutics step to individual administration, study relevant and mental disorder with aging, anorexia nervosa, apathy, arouse attention by the general medicine condition and to lax obstacle, the bipolarity mental disorder, bulimia nervosa, chronic fatigue syndrome, chronic or acute psychentonia, chronic pain, cyclothymic disorder, dysthymia, fibromyalgia and other somatoform disorderses, incontinence, manic, migraine, fat, peripheral neurophaty, post-traumatic stress disorder, premenstrual dysphoric disease, psychosis, seasonal affective disorder, sleep disorder, specific dysplasia, SSRI " tired " syndrome and TIC disease.Other embodiments of the present invention relate to from the preparation of compositions medicine that comprises reboxetine and the reboxetine purposes medicine is made, and this medicine is used for the treatment of or prevents at least a above-mentioned nervous system disorders.
By following detailed description in conjunction with the embodiments and claims, benefit that the present invention is other and feature will be conspicuous for a person skilled in the art.But should be noted that, although the present invention allows to exist various forms of embodiments, but hereinafter described for the present invention specifically preferred embodiment, and self-evident be that content disclosed herein only supplies illustration, the present invention is not limited to the specific embodiment described here.
The detailed description of preferred implementation
Reboxetine is a kind of compound known, and it has activity to the central nervous system, uses as antidepressant.So far, the purposes of reboxetine only limits to the treatment of depression, antagonism obstacle, distractibility/hyperkinetic syndrome and behavior disorder.These treatments of advising are disclosed among international patent publication Nos.WO 99/15163, WO 95/15176 and the WO 99/15177.These Therapeutic Method only limit to (S, S) with (R, R) administration of the racemic mixture of reboxetine stereoisomer.
Reboxetine does not resemble and plays a role most of antidepressant.Different with tricyclic antidepressants, in addition also different with selective serotonin reuptake inhibitor (SSRI), and reboxetine is invalid in the test of 8-OH-DPAT hypothermia, shows that reboxetine is not SSRI.Brian E.Leonard " noradrenaline in the basic depression model " " European neuropsychopharmacology " (" Noradrenaline in basic models of depression ", European-Neuropsychopharmacol), 7 Suppl.1pp.S11-6 and S71-3 (1997.4.).Reboxetine is a kind of selectivity NRI, only has MIN serotonin reuptake and suppresses active, does not have dopamine reuptake to suppress active.Reboxetine shows in the different animals model does not have anticholinergic in conjunction with activity, and it is active to lack monoamine oxidase, MAO (MAO) inhibition basically.Serotonin (the K that the raceme reboxetine is showed i)/norepinephrine (K i) the pharmacology selectivity be about 80.K iValue goes through hereinafter.
Another embodiment of the invention comprises that selectivity suppresses the method for norepinephrine reuptake, and this method comprises that said composition comprises a kind of like this chemical compound, its serotonin (K with the compositions of effective dose on the therapeutics step to individual administration i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000.
Another embodiment of the invention relates to compositions, and said composition comprises a kind of like this chemical compound, its serotonin (K i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000.Compositions of the present invention can be used for the treatment or the prevention of disease, obstacle and disease (hereinafter having a detailed description), and wherein the inhibitory action of norepinephrine reuptake is useful.The optical voidness that a kind of like this examples for compounds is a reboxetine (S, S) stereoisomer or its pharmaceutically effective salt.
In order to measure the bonded selectivity degree in chemical compound and norepinephrine reuptake position, with inhibition constant (or the K of this chemical compound about the serotonin reuptake position iValue) divided by K about the norepinephrine reuptake position iValue.K about norepinephrine reuptake iBe worth lowly more, show high more to norepinephrine receptor in conjunction with affinity.Serotonin (K i)/norepinephrine (K i) ratio high more, show about selectivity high more in conjunction with norepinephrine receptor.Therefore, the present invention relates to compositions, said composition comprises a kind of like this chemical compound, its serotonin (K i)/norepinephrine (K i) the pharmacology selectivity be at least about 5,000, be preferably at least about 10,000, more preferably at least about 12,000, as mentioned above.In addition, can imagine that the selective value considerably beyond 12,000 also is useful, for example 25,000,50,000,75,000 even 100,000 or higher.
The present composition is optionally about the norepinephrine reuptake position when using its effective dose according to the present invention, but can not cause significant relevant with worthless side effect receptor retardance, for example receptor of serotonin and dopamine.In other words, the present composition can suppress the dosage of norepinephrine reuptake to causing that other neurotransmitter receptor retardances are invalid basically.According to Y.C.Cheng and the W.H.Prusoff " inhibition constant (K of enzyme reaction i) and cause the 50% inhibitor concentration (IC that suppresses 50) between relation " " biochemical pharmacology " (" Relationship Between the Inhibitory Constant (K i) andthe Concentration of Inhibitor Which Cause 50% Inhibition (IC 50) of an Enzymatic Reaction ", Biochemical Pharmacology), vol.22, the described method of pp.3099-3108 (1973) is from IC 50Value is calculated and is suppressed constant (K iValue), represent with nanomole unit (nM) usually.
Another embodiment of the invention relates to the optical voidness that uses reboxetine, and (wherein the inhibitory action of norepinephrine reuptake is useful for S, the S) effective ways of stereoisomer treatment or prevention disease.(S, S) reboxetine be a kind of effectively, the selective depressant of norepinephrine reuptake, therefore compare basically and can reduce dosage level with racemic reboxetine.In addition, (S, S) individuality of reboxetine treatment can not experience some and (R is R) with (S, S) the relevant adverse side effect of racemic mixture administration of reboxetine with optical voidness.Therefore, another embodiment of the invention comprises that (S, S) reboxetine, is controlled, reduced or eliminated and the relevant detrimental effect of raceme reboxetine administration to suppress the reuptake of norepinephrine people's administration with the optical voidness of therapeutic dose.
Another embodiment of the present invention relates to the method for the treatment of or preventing people's disease, and the reuptake that wherein suppresses norepinephrine can bring benefit.This method comprise with accumulated dose for about 0.1mg/ days to about 10mg/ days, more preferably about 0.5 to about 10mg/ day optical voidness (S, S) reboxetine or its pharmaceutically acceptable salt to individual administration, be preferably the step of oral administration.
Term used herein " reboxetine " refers to reboxetine, and (R is R) with (S, S) racemic mixture of enantiomer.By contrast, term " (S, S) reboxetine " only refers to (S, S) stereoisomer.Similarly, term " (R, R) reboxetine " only refers to (R, R) stereoisomer.
(compositions contains more (S, S) reboxetine of vast scale for R, R) reboxetine relatively in expression for phrase used herein " optically pure (S, S) reboxetine " and " be substantially free of its (R, R) stereoisomer ".In preferred embodiment, these phrases represent that compositions contains (S, S) reboxetine and 10wt.% or following (R, R) reboxetine of at least 90 percentage by weights (wt.%).In preferred embodiment, these phrases represent that compositions contains (S, S) reboxetine and 3wt.% or following (R, R) reboxetine of 97wt.% at least.So preferred embodiment in, these phrases represent that compositions contains (S, S) reboxetine and 1wt.% or following (R, R) reboxetine of 99wt.% at least.At most preferred embodiment, phrase used herein " optically pure (S, S) reboxetine " and " be substantially free of its (R, R) stereoisomer " expression compositions contain (S, S) reboxetine greater than 99wt.%.Above-mentioned percentage ratio is based on the reboxetine total amount that exists in the compositions.Phrase " be substantially free of (R; R) reboxetine ", " reboxetine optically pure basically (S; S) stereoisomer ", " optically pure basically (S; S) reboxetine ", " reboxetine optically pure (S; S) stereoisomer " and " optically pure (S, S) reboxetine " are also contained by above-mentioned amount.
Phrase " pharmaceutically acceptable salt " or " its pharmaceutically acceptable salt " refer to from pharmaceutically acceptable acid or the prepared salt of alkali, comprise organic and inorganic bronsted lowry acids and bases bronsted lowry.Because (promptly (S, S) reboxetine) is alkaline to reactive compound used in this invention, so can be equipped with salt from pharmaceutically acceptable processed with acid.The pharmaceutically acceptable acid that is fit to comprises acetic acid, benzenesulfonic acid (benzene sulfonate), benzoic acid, right-bromo-benzene sulfonic acid, camphorsulfonic acid, carbonic acid, citric acid, ethyl sulfonic acid, fumaric acid, gluconic acid, glutamic acid, hydrobromic acid, hydrochloric acid, hydroiodic acid, isethionic acid, lactic acid, maleic acid, malic acid, mandelic acid, methanesulfonic acid (mesylate), glactaric acid, nitric acid, oxalic acid, pounces on acid, pantothenic acid, phosphoric acid, succinic acid, sulphuric acid, tartaric acid, right-toluenesulfonic acid etc.(S, S) example of this class pharmaceutically acceptable salt of reboxetine thereby include but not limited to acetate, benzoate, beta-hydroxy-butanoic acid salt, disulfate, bisulfites, bromide, butine-1, the 4-diacid salt, caproate, chloride, chloro benzoate, citrate, dihydric phosphate, dinitro-benzoate, fumarate, glycollate, enanthate, hexin-1, the 6-diacid salt, hydroxy benzoate, iodide, lactate, maleate, malonate, mandelate, metaphosphate, mesylate, methoxybenzoic acid salt, ar-Toluic acid salt, dibasic alkaliine, naphthalene-1-sulfonate, naphthalene-2-sulfonic acid salt, oxalates, phenylbutyric acid salt, phenylpropionic acid salt, phosphate, phthalate, phenylacetate, propane sulfonic acid salt, propiolate, propionate, pyrophosphate, pyrosulfate, sebacate, suberate, succinate, sulfate, sulphite, sulfonate, tartrate, xylenesulfonate etc.Preferably (S, S) the reboxetine drug salts is a mesylate, it prepares with methanesulfonic acid.
The phrase " side effect ", " detrimental effect " that relate to reboxetine include but not limited to giddy, insomnia, dizziness, blood pressure change, gastrointestinal dysfunction, male sexual disorder, the outer side effect of tractus pyramidalis, some anticholinergic sample effect (for example tachycardia, the dimness of vision) and the unwanted side effect relevant with drug-drug interactions with " disadvantageous side effect ".
Verb used herein " treatment " and noun " treatment " refer to: (a) generation of prevention human disease, obstacle or disease, and this people may suffer from the tendency of this disease, obstacle and/or disease in advance, but also is not diagnosed as ill; (b) suppress this disease, obstacle or disease, just stop its development; (c) alleviate this disease, obstacle or disease, just cause disappearing of this disease, obstacle and/or disease.In other words, verb " treatment " and noun " treatment " extend to prevention, in other words verb " prevention " and noun " prevention " and set treatment of conditions.Therefore, the use of verb " prevention " and noun " prevention " will be pharmaceutical composition to a kind of like this people's administration, he suffers from above-mentioned disease, for example migraine in the past, but does not suffer from these diseases at this very moment in the compositions administration.For for simplicity, disease, disease and obstacle contained in hereinafter used term " disease ".
Method and composition of the present invention can be used for treating people's disease, and the reuptake that wherein suppresses norepinephrine can bring benefit.This method comprise with the The compounds of this invention of capacity to individual administration, be preferably the step of oral administration, be about 0.1 to about 10mg/ day alternative cpd so that accumulated dose to be provided.
More particularly, the present composition (for example contains optical voidness (S, S) the administration compositions of reboxetine) is effective to the disease for the treatment of various people, include but not limited to that assuetude disturbance (comprises by ethanol, nicotine and other psychoactive materials cause) and withdrawal syndrome, adjustment disorder (comprises depressibility mental state, anxiety, mixed type anxiety and depressibility mental state, conduct disorder and mixed type behavior and mental state imbalance), study relevant and mental disorder (comprising Alzheimer) with aging, anorexia nervosa, apathy, arouse attention by the general medicine condition and to lax (or other cognitions) obstacle, distractibility hyperkinetic syndrome (ADHD), the bipolarity mental disorder, bulimia nervosa, chronic fatigue syndrome, chronic or acute psychentonia, chronic pain, behavior disorder, cyclothymic disorder, depressed (comprising the depressed and teenage depression of adolescence), dysthymia, fibromyalgia and other somatoform disorderses (comprise the somatization obstacle, conversive disorder, pain, hypochondria, body dysmorphic disorder, indiscriminate somatoform disorders and somatopathy sample NOS), generalized-anxiety disorder (GAD), incontinence (is a stress incontinence, genuine stress incontinence and mixed type incontinence), suck obstacle, nosotoxicosis (alcohol addiction), manic, migraine, fat (just reducing fat or overweight patient's body weight), obsessive idea and behavior disorder and relevant obstacles, the antagonism obstacle, panic disorder, peripheral neurophaty, post-traumatic stress disorder, premenstrual dysphoric disease (being premenstrual syndrome and late luteal phase dysphoric disorder), psychosis (comprises schizophrenia, Schizoaffective mental disorder and schizophreniform disorder), social phobia (comprising social anxiety disease), specific dysplasia, the selective serotonin reuptake suppresses (SSRI) " tired " syndrome (just after initial gratifying response phase to the SSRI therapy, the patient can not keep gratifying response) and TIC disease (being Tourette's syndrome).
The administration of the present composition is very effective to following treatment of conditions: assuetude disturbance and withdrawal syndrome, adjustment disorder, apathy, the distractibility hyperkinetic syndrome, arouse attention by medical condition and to lax obstacle, bulimia nervosa, chronic fatigue syndrome, chronic or acute psychentonia, depressed, dysthymia, generalized-anxiety disorder (GAD), the nicotine addiction, Panic disorder, post-traumatic stress disorder, premenstrual dysphoric disease, Schizoaffective mental disorder and SSRI " tired " syndrome.In addition, (S, S) administration of reboxetine is especially effective to following treatment of conditions or prevention: assuetude disturbance and withdrawal syndrome, apathy, distractibility hyperkinetic syndrome, aroused attention by medical condition and to lax obstacle, chronic fatigue syndrome, chronic or acute psychentonia, dysthymia, depression, nicotine addiction, obesity, post-traumatic stress disorder and SSRI " tired " syndrome.
This paper also comprises the treatment of smoking cessation about the treatment of " nicotine addiction ".A lot of above-mentioned people's disease general description is in the publication of American Psychiatric Association, exercise question is " diagnostic ﹠ statistical manual of mental disorder " (" Diagnostc and Statistical Manual of MentalDisorders ") the 4th edition (Washington D.C.1994), and its disclosure is quoted at this as a reference.The general remark that comprises the assuetude disturbance of the obstacle that relates to nosotoxicosis and inhalant and nicotine addiction can find in a lot of canonical reference documents, R.E.Hales etc. " the sick version Textbook of Psychiatry of learning of Americanism " (" The AmericanPsychiatric Press Textbook of Psychiatry ") the 3rd edition (1999) for example, its disclosure is quoted at this as a reference.
Compositions of the present invention also can be used for the treatment of migraine.In addition, compositions of the present invention can be used for the treatment of the migraineur or suffer from migrainous people's headache, comprise the treatment of existing headache symptom, the treatment that the prevention headache takes place, strengthens and continue, prevent or reduce the preventative use of migrainous incidence rate or persistent period, as adjuvant promotion pause and transition in rhythm or melody Drug therapy or with the effect of other drug treatment (comprising the pause and transition in rhythm or melody Drug therapy) co-administered, to reduce the required dosage of these Drug therapys (and side effect).
The preferred implementation of the present composition comprises (S, S) reboxetine.Available reboxetine is the 2-[(2-ethoxy phenoxy on the known commercial) (phenyl) methyl] (R is R) with (S, S) racemic mixture of enantiomer for morpholine.Have now found that about suppressing the reuptake of norepinephrine (S, S) stereoisomer is an optionally stereoisomer of the active and tool of tool.In addition, when (just not existing its (R, R) diastereomer) under dosage as herein described during basically, individual can the experience much and the relevant adverse side effect of commercial available reboxetine administration to individual administration with optically pure form.In addition, further find, relative serotonin neurotransmitter, (S is S) with (R, R) enantiomer has opposite activity to the norepinephrine neurotransmitter, optically pure (S, S) reboxetine is suppressing on the disorderly reuptake of noradrenaline than (R, R) enantiomer or (S, S) with (R, R) racemic mixture of enantiomer is all more much effective.
Specifically, have been found that and contain optical voidness (S, S) compositions of reboxetine contains that (R is R) with (S, S) the combination object height about 5 of the racemic mixture of stereoisomer is to about 8.5 times suppressing effect ratio on the norepinephrine reuptake.It is therefore, optically pure when using that (S, S) during reboxetine, typical every day of the dosage of racemic mixture (being commercial available reboxetine) can reduce about 50% to about 80%.The minimizing of dosage can not cause the reduction of curative effect, but observing various disadvantageous side effect has reduced or eliminated.
Exactly, because compare with the reuptake of serotonin, optically pure (S, S) reboxetine optionally suppresses the reuptake of norepinephrine, has reduced or eliminated the adverse side effect relevant with serotonin reuptake.The disadvantageous side effect of this class includes but not limited to gastrointestinal dysfunction, anxiety, sexual dysfunction and the unwanted side effect relevant with drug-drug interactions.
The synthetic of the racemic mixture of reboxetine is disclosed in the U.S. Patent No.s 4,229,449 such as Melloni.Utilization well known to a person skilled in the art that conventional method carries out the fractionation of enantiomer racemic mixture, can obtain the various stereoisomers of reboxetine.Such method includes but not limited to split by simple crystallization and chromatography processes, GB2 for example, and 167,407 is described.
Although the direct administration of highly selective norepinephrine reuptake inhibitors might be need not any preparation, but compositions is preferably to comprise the medicine type administration of selectivity NRI.Compositions of the present invention can be with the oral unit dosage form administration, for example tablet, capsule, pill, powder or granule.Use the known dosage form of pharmaceutical field, compositions of the present invention can also be passed through parenteral mode administration (for example subcutaneous, intravenous or intramuscular).Compositions of the present invention further can be passed through rectum or the administration of vagina mode, and dosage form is suppository or bacillum for example.Compositions of the present invention can also be passed through part or transdermal means administration, utilizes by " patch " that contain active component.The transdermal release patch can be used for providing with in check amount continous way, pulsed or the input of request formula of the present composition.The structure of transdermal release patch and use are that pharmaceutical field is known, and for example United States Patent(USP) Nos. 3,742,951,3,742,951,3,797,494,3,996,934,4,031,894 and 5,023, and 252 is described.
What possibility was desirable or necessary is the direct or indirect pharmaceutical composition of introducing the present composition or containing selective NRI in brain.Directly technology is usually directed to suitable drug release conduit is placed in the ventricular system, to walk around blood brain barrier.U.S. Patent No. 5,011,472 have described a kind of such delivery system that is fit to, and are used for biotic factor is transported to the anatomical site of health, and its disclosure is quoted at this as a reference.
In general, the preferred route of administering of the present composition is oral, is administered once every day or twice.The present composition is used for the treatment of patient's dosage regimen and dosage and is selected according to various factors, for example comprising patient's type, age, body weight, sex and health, seriousness, the route of administration of disease and the specific compound that is adopted, is racemate or pure enantiomer.Common doctor or psychiatrist can easily determine and effectively (i.e. the treatment) of appointed compound measures, to prevent or to stop the progress of disease.In this process, doctor or psychiatrist can at first adopt low relatively dosage, increase dosage subsequently, until obtaining peak response.
Suitable pharmaceutical composition for oral administration can be a dosage form easily arbitrarily, for example cachet, tablet, capsule, pill or aerosol, the reactive compound powder or the granule that contain scheduled volume separately perhaps contain solution or suspension or oil-in-water emulsion or water-in-oil emulsion in waterborne liquid, non-aqueous liquid.Such compositions can prepare according to any means, comprises making reactive compound and the tight associating step of carrier, and carrier constitutes one or more necessity or desirable composition.In general, compositions is preparation like this, and active component evenly and is closely mixed with solid carrier or this two kinds of carriers of liquid-carrier or fine pulverizing, then if necessary, makes product be shaped to required dosage form.
For example,, use one or more auxiliary elements alternatively, can prepare tablet by compacting or molding process.By in the machinery that is fit to active component being pressed into free-pouring form, for example powder or granule can prepare compressed tablet.Afterwards, can mix with the material of binding agent, diluent, lubricant, disintegrating agent, effervescent, dyestuff, sweeting agent, wetting agent and nontoxic parmacodynamics-less activity alternatively through the free-flowing form of compacting, they are to be present in the pharmaceutical composition usually.By the molded mixture of using the powdered compounds of the moistening mistake of inert liquid diluent in the machinery that is fit to, can prepare molded tablet.
The binding agent that is suitable for use in the pharmaceutical preparation for example comprises starch, gelatin, methylcellulose, arabic gum, tragacanth and polyvinylpyrrolidone.The diluent that is suitable for use in the pharmaceutical preparation for example comprises lactose, glucose, sucrose, mannitol, Sorbitol and cellulose.The lubricant that is suitable for use in the pharmaceutical preparation for example comprises silicon dioxide, Talcum, stearic acid, magnesium stearate or calcium and/or Polyethylene Glycol.The disintegrating agent that is suitable for use in the pharmaceutical preparation for example comprises starch, alginic acid and alginate.The wetting agent that is suitable for use in the pharmaceutical preparation for example comprises lecithin, Spheron MD 30/70 and lauryl sulfate.In general, the known any effervescent of those of ordinary skills, dyestuff and/or sweeting agent can be used in the drug combination preparation.
Preferably, dosage every day of compositions (for example tablet, cachet or capsule) contain have an appointment 0.1 to about 10mg optical voidness (S, S) reboxetine are substantially free of its (R, R) stereoisomer.More preferably, every dose of compound recipe contain have an appointment 0.5 to about 8mg active component optical voidness (S, S) reboxetine are substantially free of its (R, R) stereoisomer.But and then more preferably, every dose contains and has an appointment 0.5 to about 5mg active component, and for example optically pure (S, S) reboxetine are substantially free of its (R, R) stereoisomer.This dosage form is providing enough dosage every day in the oral administration once or twice, for about 0.5 to about 2.5mg.This will allow tablet to contain 0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0,2.1,2.2,2.3,2.4 or optical voidness (S, S) reboxetine of 2.5mg.
In another embodiment, preferred every day of the dosage of compositions (for example tablet, cachet or capsule) contain have an appointment 0.1 to about 0.9mg optical voidness (S, S) reboxetine are substantially free of its (R, R) stereoisomer.More preferably, every dose of compositions contain have an appointment 0.5 to about 0.8mg active component optical voidness (S, S) reboxetine are substantially free of its (R, R) stereoisomer.But and then more preferably, every dose contain have an appointment 0.5 to about 0.75mg active component optical voidness (S, S) reboxetine are substantially free of its (R, R) stereoisomer.This dosage form provides enough dosage every day in an oral administration, for about 0.5 to about 0.9mg.
The patient who suffers from depression, nicotine addiction, behavior disorder, antagonism obstacle and/or distractibility hyperkinetic syndrome will benefit from the administration of the present composition, be specially and contain optical voidness (S, S) compositions of reboxetine, and have nothing to do with these or other common morbific disease.Diagnostic criteria about these obstacles is generally provided by American Psychiatric Association, referring to their " diagnostic ﹠ statistical manual of mental disorder " (" Diagnostc and Statistical Manual of MentalDisorders ") the 4th edition (Washington D.C.1994), with international patent publication Nos.WO 99/15177, WO 99/15176 and WO 99/15163, its disclosure is quoted at this as a reference.
In addition, suffer from assuetude disturbance and withdrawal syndrome, adjustment disorder, apathy, the distractibility hyperkinetic syndrome, arouse attention by medical condition and to lax obstacle, bulimia nervosa, chronic fatigue syndrome, chronic or acute psychentonia, depressed, dysthymia, generalized-anxiety disorder (GAD), the nicotine addiction, Panic disorder, post-traumatic stress disorder, premenstrual dysphoric disease, the syndromic patient of Schizoaffective mental disorder and SSRI " tired " will benefit from the administration of the present composition, be specially and contain optical voidness (S, S) compositions of reboxetine.
The manifestation mode of these obstacles in child, teenager and adult is similar.Thus, method of the present invention is effective to the treatment of child, teenager and adult patient.For purposes of the present invention, the child is considered to the age and is lower than hebetic people, and teenager is considered to the age adolescence and the people between about 18 years old, and the adult generally is the age at least about 18 years old people.As mentioned before, must after the characteristic of the body weight of considering every patient, other drug treatment that the patient may take, particular obstacle and seriousness and the every other situation of patient, be determined by the attending doctor about every patient's optimum every day of dosage.
As mentioned above, reboxetine serves as a kind of antidepressant.But, reboxetine does not resemble and plays a role most of antidepressant.Different with tricyclic antidepressants, in addition also different with selective serotonin reuptake inhibitor (SSRI), and reboxetine is invalid in the test of 8-OH-DPAT hypothermia, shows that reboxetine is not the selective serotonin reuptake inhibitor.On the contrary, reboxetine can system have selectivity to noradrenaline.Reboxetine is not SSRI, but a kind of selectivity noradrenaline reuptake inhibitor (NRI) of novelty.B.Leonard " noradrenaline in the basic depression model " " European neuropsychopharmacology " (" Noradrenaline in basic models of depression ", European-Neuropsychopharmacol), 7 Suppl.1 pp.S11-6 and S71-3 (1997).Different with most of former generation medicines, reboxetine is a kind of highly selective norepinephrine reuptake inhibitors, only has MIN serotonin reuptake and suppresses active, does not have dopamine reuptake to suppress active.Reboxetine shows in the different animals model does not have anticholinergic in conjunction with activity, and it is active to lack monoamine oxidase, MAO (MAO) inhibition.
Reboxetine also is the strong pharmacology's specificity active remedy of a kind of height.Studies show that, reboxetine has strong anti-reserpine activity, combine classical tricyclic antidepressants to the inhibition activity of noradrenaline reuptake and the ability of desensitization B-adrenergic receptor function, muscarine, cholinergic, histaminergic and alpha-adrenergic receptor are not shown any appreciable retardation.And reboxetine shows still less vagus nerve relaxation activity than tricyclic antidepressants, and does not have the evidence of cardiac toxicity.
Therefore, in another embodiment of the invention, racemic reboxetine can be used for the treatment of or prevent a large amount of spirit and neurological's obstacle.Specifically, have been found that reboxetine is particularly useful for treating various psychiatric symptoms or obstacle or strengthens its treatment or preventive effect, and compare with known drug treatment that curative effect is higher, side effect still less.In addition, reboxetine can also be used for the treatment of other specific psychiatric symptoms or obstacle or strengthen its treatment or preventive effect.
The administration of raceme reboxetine (or derivatives thereof or pharmaceutically acceptable salt) that can be by effective dose on the therapeutics is treated or the spirit and the neurological's obstacle that prevent include but not limited to that adjustment disorder (comprises depressibility mental state, anxiety, mixed type anxiety and depressibility mental state, conduct disorder and mixed type behavior and mental state imbalance), study relevant and mental disorder (comprising Alzheimer) with aging, anorexia nervosa, apathy, arouse attention by the general medicine condition and to lax (or other cognitions) obstacle, the bipolarity mental disorder, bulimia nervosa, chronic fatigue syndrome, chronic or acute psychentonia, chronic pain, cyclothymic disorder, dysthymia, fibromyalgia and other somatoform disorderses (comprise the somatization obstacle, conversive disorder, pain, hypochondria, body dysmorphic disorder, indiscriminate somatoform disorders and somatopathy sample NOS), incontinence (is a stress incontinence, genuine stress incontinence and mixed type incontinence), manic, migraine, fat (just reducing fat or overweight patient's body weight), peripheral neurophaty, post-traumatic stress disorder, premenstrual dysphoric disease (being premenstrual syndrome and late luteal phase dysphoric disorder), psychosis (comprises schizophrenia, Schizoaffective mental disorder and schizophreniform disorder), seasonal affective disorder, sleep disorder (for example lethargy and the enuresis), specific dysplasia, the selective serotonin reuptake suppresses (SSRI) " tired " syndrome and TIC disease (being Tourette's syndrome).
With (S, S) reboxetine is similar, and the raceme reboxetine also can be used for the treatment of suffers from migrainous people, particularly reduces complication due to frequency, persistent period, intensity and/or the migraine.In addition, the raceme reboxetine can be used for prevention of migraine.
In addition, the raceme reboxetine can be used for the treatment of incontinence (being stress incontinence, genuine stress incontinence and mixed type incontinence).Stress incontinence is a kind of like this symptom, when carrying out any rising intraabdominal pressure movable, and for example cough or sneeze, the nonvoluntary loss of urine.Stress incontinence also is a kind of clinical sign, can by the nursing staff observe when patient cough or when making great efforts urine spouting from urethral orifice (opening).By the urine dynamic test, genuine stress incontinence is the pathological diagnosis of urethral sphincter incompetence.The mixed type incontinence is the combination of stress incontinence and urgent micturition incontinence.The latter is the syndromic part of overactive urinary bladder.The reason of retention may be flow out block (for example urethra pressure height), the coordination between forcing flesh (bladder muscle) contractility difference or shortage to force flesh to shrink to relax with urethra.
The racemic form of reboxetine can fully be tolerated, and has safety scope widely.The raceme reboxetine can be preferably about 4 to about 10mg/ days, more preferably about 6 to about 10mg/ days about 2 to about 20 milligrams for each person every day in the scope of (mg/ days) to the dosage of individuality.According to preparation and the individual obstacle of suffering from, total dosage every day can divide a small amount of administration every day nearly twice.Reboxetine is oral administration normally, for example with the form of tablet, but also can pass through parenteral, transdermal, rectum or the administration of vagina mode.
The preferred medication of raceme reboxetine be every day oral administration once or twice.Can also be by about 2,4,6,8,10 or the dosed administration of 12mg/ days or its part.For example, the administration that is fit to can be about 4mg in morning, afternoon or evening about 2 or about 4mg.To some patient, ideal administration will be morning about 3 to about 5mg, afternoon about 3 is to about 5mg.Skilled doctor or psychiatrist can determine accurate administration level.Ideal administration is traditionally according to clinical trial evaluation and particular patient needs and definite.
According to the present invention, the raceme reboxetine can also be as free alkali or its pharmaceutically acceptable salt administration.Phrase " pharmaceutically acceptable salt " or " its pharmaceutically acceptable salt " refer to from pharmaceutically acceptable acid or the prepared salt of alkali, comprise organic and inorganic bronsted lowry acids and bases bronsted lowry, and as above (S, S) salt of reboxetine is described about optical voidness.Preferred reboxetine drug salts is a mesylate, and it prepares with methanesulfonic acid.
The treatment of above-mentioned obstacle or prevention relate to reboxetine by certain way and dosage form administration, reduce the symptom of disease or obstacle.Usually, the symptom that is showed by child, teenager and adult is similar each other.Thus, as mentioned above, method of the present invention all is effective to the treatment of child, teenager and adult patient.
Embodiment
The bright compositions according to the present invention of this illustration has superior pharmacology selectivity and effectiveness.More particularly, this illustration is bright (S, S) (R, R) compare with the raceme reboxetine, has superior pharmacology selectivity and effectiveness for reboxetine and its by stereoisomer.
Heavily about 250 to the about 300 Sprague-Dawley rats that restrain (g) are beheaded, take out brain cortex tissue immediately.Utilize the rotation pestle, with the homogenize in the medium that contains 0.32 mole of (M) sucrose separately of brain cortex.Under about 4 ℃, with gained homogenate about 1, under the 000xg centrifugal about 10 minutes.Collect supernatant, under about 4 ℃ temperature further about 20, under the 000xg centrifugal about 20 minutes.Centrifugation step gained albuminous granules is suspended in Kreb ' the s-Hepes buffer once more, and obtaining protein concentration is about 2mg/ml buffer.The pH of buffer is maintained at about 7.0, and wherein contains: 20mM Hepes, 4.16mM NaHCO 3, 0.44mM KH 2PO 4, 0.63mMNaH 2PO 4, 127mM NaCl, 5.36mM KCl, 1.26mM CaCl 2With 0.98mM MgCl 2
Protein/buffer suspension is joined 166 mensuration in vitro, in vitro respectively add about 30 μ g (10 to 166 mensuration -6Gram) to about 150 μ g protein (80/every transhipment is just measured).Following mensuration combines with serotonin and norepinephrine reuptake position.Following mensuration 3The synaptosome picked-up of H-norepinephrine.Use about 1.4 nanomoles [ 3H] cisplatin and about 1.9nM[ 3H] nisoxetine, labelling serotonin and norepinephrine reuptake position respectively.Non-specific binding is defined by 100 micromoles (μ M) fluoxetines (about serotonin) and 10 μ M desipramines (about norepinephrine).Total mensuration volume is about 500 microlitres (μ l), carries out about 60 minutes of constant temperature (about serotonin) and 120 minutes (about norepinephrine).Two kinds of constant temperature all carry out under about 25 ℃, are filled in the 48-porocyte harvesting device by GFB filter (pre-soaked about 0.5PEI reaches about 4 hours) rapidly during end, and with the ice-cold 200mM tris-HCl of 3 * 5ml, the pH7.0 washing.To launch filter (Punched-outfilters) and be placed in the 7ml bottle, by the liquid flashing counting measuring radioactivity.
Use two kinds of radioligands [ 3H] cisplatin and [ 3H] nisoxetine, (promptly (R is R) with (S, S) racemic mixture of reboxetine), (R, R) reboxetine and (S, S) the bonded ability of reboxetine and norepinephrine and serotonin reuptake position to estimate reboxetine in conjunction with mensuration.By the nonlinear least square regression analysis, measure the specificity combination that suppresses on two kinds of reuptake positions and reach 50% required test compound concentration (IC 50Value).Utilize following Cheng-Prassoff equation to carry out IC 50Value is to K iThe conversion of value:
K i=IC 50/ (1+ ([L]/[K of L d]))
Wherein [L] is radioligand concentration, represents K with nM dBe L in conjunction with affinity, represent with nM.Referring to Y.C.Cheng and the W.H.Prusoff " inhibition constant (K of enzyme reaction i) and cause the 50% inhibitor concentration (IC that suppresses 50) between relation " " biochemical pharmacology " (" Relationship Between the Inhibitory Constant (K i) and theConcentration of Inhibitor Which Cause 50% Inhibition (IC 50) of an Enzymatic Reaction ", Biochemical Pharmacology), vol.22, pp.3099-3108 (1973).
Following table provides the K according to the Cheng-Prassoff Equation for Calculating iValue:
Table
Chemical compound Norepinephrine reuptake (K i,nM) Serotonin reuptake (K i,nM) The K of serotonin/norepinephrine iSelectivity
(S, S) reboxetine (R, R) reboxetine 0.23±0.06 7.0±1.7 2937±246 104±43 12,770 15
Reboxetine 1.6±0.6 129±13 81
Data show, (S, S) reboxetine suppress norepinephrine reuptake effect than reboxetine racemate strong about five to about octuple.In addition, the raceme reboxetine is high 81 times to serotonin reuptake inhibition to the inhibiting selectivity ratios of norepinephrine reuptake.Unexpectedly be that (S is S) with (R, R) the reboxetine stereoisomer is significantly different about the enantiomerism selectivity that suppresses norepinephrine and serotonin reuptake.(S, S) enantiomer is that non-constant (is K about suppressing serotonin reuptake iHigh), therefore the norepinephrine reuptake position is had the high surprising selectivity that gets.Exactly, the selectivity of serotonin-norepinephrine is increased to 12,770 (about optically pure (S, S) reboxetine) from 81 (about racemates).Therefore, therapeutic dose (S, S) the reboxetine administration suppresses norepinephrine reuptake effectively, and serotonin reuptake is unaffected basically.Equally, the independence between the effect of norepinephrine reuptake position and other receptors also there is further increase.Consequently, do not show with suppress serotonin reuptake and the retardance other receptor related adverse side effects.
Surprising is that (R, R) reboxetine is not observed this effect to usefulness, but just in time opposite.About the reuptake of norepinephrine, (R, R) reboxetine is than (S, S) the more weak inhibitor of reboxetine that is to say, about (R, R) affinity (K of reboxetine i) be 7nM, and about (S, S) K of reboxetine iBe 0.23nM.In addition, (R, R) reboxetine is suppressing on the serotonin reuptake than (S, S) reboxetine is much effective, that is to say, about (R, R) K of reboxetine iBe 104nM, and about (S, S) K of reboxetine iBe 2937nM.Therefore, (R, R) reboxetine has low selectivity to norepinephrine reuptake inhibitory action-serotonin reuptake inhibition.
(S, S) enantiomer is than raceme reboxetine and (R, R) reboxetine is high that surprising effectiveness is specified NRI, i.e. (S for the attending doctor provides, S) ability of the effective dose of reboxetine only needs about 10% to about 20% of present reboxetine (racemate) dosage every day can realize the identical reuptake inhibition to the norepinephrine position.In addition, (S, S) reboxetine is high that surprising inhibitory action selectivity is limited to inhibitory action to norepinephrine reuptake basically, thereby reduces and suppress serotonin reuptake position and other receptor related adverse side effects of retardance for optical voidness.
Above-mentioned explanation is only understood for being convenient to, and therefrom will be understood that does not have unnecessary restriction, is conspicuous for those of ordinary skills because make amendment in invention scope.

Claims (8)

1. optically pure (S, S)-reboxetine or its pharmaceutically acceptable salt preparation be used for the treatment of or prevent purposes in the medicine of chronic fatigue syndrome, described chemical compound not to go up substantially to contain (R, R)-reboxetine.
2. the purposes of claim 1, and wherein (S, S)-reboxetine is with 0.1-10mg/ days amount administration.
3. the purposes of claim 2, and wherein (S, S)-reboxetine is with 0.5-8mg/ days amount administration.
4. the purposes of claim 3, and wherein (S, S)-reboxetine is with 0.5-5mg/ days amount administration.
5. each purposes of claim 1-4, and wherein (S, S)-pharmaceutically acceptable salt of reboxetine is a mesylate.
6. each purposes of claim 1-4, this optically pure (S wherein, S)-reboxetine or its pharmaceutically acceptable salt comprise the (S of 90wt.% at least, S)-reboxetine and the (R that is less than 10wt.%, R)-reboxetine, based on existing (S, S) with (R, R) gross weight of reboxetine.
7. the purposes of claim 6, wherein this is optically pure (S, S)-reboxetine or its pharmaceutically acceptable salt comprise the (S of 97wt.% at least, S)-reboxetine and be less than 3wt.% (R, R)-reboxetine, based on existing (S, S) with (R, R) gross weight of reboxetine.
8. the purposes of claim 7, wherein this is optically pure (S, S)-reboxetine or its pharmaceutically acceptable salt comprise the (S of 99wt.% at least, S)-reboxetine and be less than 1wt.% (R, R)-reboxetine, based on existing (S, S) with (R, R) gross weight of reboxetine.
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