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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C317/00—Sulfones; Sulfoxides
  • C07C317/16—Sulfones; Sulfoxides having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton
  • C07C317/22—Sulfones; Sulfoxides having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton with sulfone or sulfoxide groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/095—Sulfur, selenium, or tellurium compounds, e.g. thiols
  • A61K31/10—Sulfides; Sulfoxides; Sulfones
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
  • A61K31/19—Carboxylic acids, e.g. valproic acid
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P15/00—Drugs for genital or sexual disorders; Contraceptives
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  • A61P25/00—Drugs for disorders of the nervous system
• • A—HUMAN NECESSITIES
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  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
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  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
  • A61P25/16—Anti-Parkinson drugs
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  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/18—Antipsychotics, i.e. neuroleptics; Drugs for mania or schizophrenia
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  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/20—Hypnotics; Sedatives
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/22—Anxiolytics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/24—Antidepressants
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P25/00—Drugs for disorders of the nervous system
  • A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
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  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C315/00—Preparation of sulfones; Preparation of sulfoxides
  • C07C315/04—Preparation of sulfones; Preparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
  • C07C51/41—Preparation of salts of carboxylic acids
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
  • C07C51/41—Preparation of salts of carboxylic acids
  • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C55/00—Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms
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  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
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  • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
  • C07C57/13—Dicarboxylic acids
  • C07C57/145—Maleic acid
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  • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
  • C07C57/13—Dicarboxylic acids
  • C07C57/15—Fumaric acid
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  • C07—ORGANIC CHEMISTRY
  • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
  • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
  • C07C59/235—Saturated compounds containing more than one carboxyl group
  • C07C59/245—Saturated compounds containing more than one carboxyl group containing hydroxy or O-metal groups
  • C07C59/255—Tartaric acid
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  • C07—ORGANIC CHEMISTRY
  • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
  • C07B2200/00—Indexing scheme relating to specific properties of organic compounds
  • C07B2200/13—Crystalline forms, e.g. polymorphs

Definitions

• the present disclosure concerns pharmaceutically acceptable salts of the compound [2- (3-fluoro-5-methanesulfonylphenoxy)ethyl](propyl)amine. More specifically, the present disclosure concerns a tartaric acid salt of [2-(3-fluoro-5- methanesulfonylphenoxy)ethyl](propyl)amine and a fumaric acid salt of [2-(3-fluoro-5- methanesulfonylphenoxy)ethyl](propyl)amine, respectively. The present disclosure also concerns a method for preparation of the aforementioned salts as well as uses of the aforementioned salts.
• WO 2012/143337 discloses phenoxy-ethyl-amine derivatives useful as modulators of cortical and basal ganglia dopaminergic and N-methyl-D-aspartate (NMDA) receptor mediated glutamatergic neurotransmission, and more specifically for the treatment of diseases that are responsive to modulation of dopaminergic and glutamatergic function in the central nervous system.
• the compound [2-(3-fluoro-5-methanesulfonylphenoxy)- ethyl](propyl)amine is disclosed in its non-salt form as well as in the form of a hydrochloric acid salt in Example 1. It is stated that said hydrochloric acid salt has a melting point of 191 °C.
• the compound 2-(3-fluoro-5-methanesulfonylphenoxy)ethyl](propyl)amine is currently in clinical development for the treatment of dyskinesia in Parkinson’s disease, i.e.
• X is H or OH
• Y is H or a cation selected from the group consisting of Li, Na and K,
• — - is a single bond or a double bond
• n 0.5 or 1.
• the present disclosure also provides a pharmaceutical composition comprising a salt of Formula III as described herein in admixture with a pharmaceutically acceptable excipient, carrier and/or diluent.
• the present disclosure also provides a salt of Formula III as described herein for use as a medicament in therapy.
• the present disclosure also provides a salt of Formula III as described herein for use in the treatment and/or prevention of a disease, disorder and/or condition which is at least one of the following: psychosis, schizophrenia, schizophreniform disorder, bipolar disorder, psychotic disorder, drug induced psychotic disorder, mood disorder, anxiety disorder, depression, obsessive-compulsive disease, dementia, age-related cognitive impairment, Autism spectrum disorders, ADHD, cerebral Palsy, Gilles de la Tourette's syndrome, brain injury, sleep disorder, sexual disorder, eating disorder, obesity, headache, pains in conditions characterized by increased muscular tone, Parkinson's disease, parkinsonian syndrome, dyskinesia, L-DOPA induced dyskinesias, Tardive dyskinesias, dystonia, tics and tremor dementia, Huntington's disease, movement disorder induced by drugs, restless legs, narcolepsy, Alzheimer’s disease and disorder(s) related to Alzheimer's disease.
• a disease, disorder and/or condition which is
• the present disclosure also provides use of a salt of Formula III as described herein for the manufacture of a medicament for use in the treatment and/or prevention of a disease, disorder and/or condition which is at least one of the following: psychosis, schizophrenia, schizophreniform disorder, bipolar disorder, psychotic disorder, drug induced psychotic disorder, mood disorder, anxiety disorder, depression, obsessive-compulsive disease, dementia, age-related cognitive impairment, Autism spectrum disorders, ADHD, cerebral Palsy, Gilles de la Tourette's syndrome, brain injury, sleep disorder, sexual disorder, eating disorder, obesity, headache, pains in conditions characterized by increased muscular tone, Parkinson's disease, parkinsonian syndrome, dyskinesia, L-DOPA induced dyskinesias, Tardive dyskinesias, dystonia, tics and tremor dementia,
• Huntington's disease movement disorder induced by drugs, restless legs, narcolepsy, Alzheimer’s disease and disorder(s) related to Alzheimer's disease.
• the present disclosure also provides a method for treatment and/or prevention of a disease, disorder and/or condition which is at least one of the following: psychosis, schizophrenia, schizophreniform disorder, bipolar disorder, psychotic disorder, drug induced psychotic disorder, mood disorder, anxiety disorder, depression, obsessive- compulsive disease, dementia, age-related cognitive impairment, Autism spectrum disorders, ADHD, cerebral Palsy, Gilles de la Tourette's syndrome, brain injury, sleep disorder, sexual disorder, eating disorder, obesity, headache, pains in conditions characterized by increased muscular tone, Parkinson's disease, parkinsonian syndrome, dyskinesia, L-DOPA induced dyskinesias, Tardive dyskinesias, dystonia, tics and tremor dementia, Huntington's disease, movement disorder induced by drugs, restless legs, narcolepsy, Alzheimer’s disease and disorder(s) related to Alzheimer's disease;
• the present disclosure also provides a method for preparing a salt of Formula III as described herein said method comprising the steps of:
• Figure 1 shows an XRP diffractogram of the salt of Formula IVa.
• Figure 2 shows an XRP diffractogram of the salt of Formula Va.
• Formula III said salt being a combination of a compound of Formula I and an acid of Formula II :
• X is H or OH
• Y is H or a cation selected from the group consisting of Li, Na and K,
• — - is a single bond or a double bond
• n 0.5 or 1.
• X is OH
• Y is H
• the acid of Formula II is tartaric acid such as L-(+)-tartaric acid and/or D-(-)-tartaric acid.
• the tartaric acid may be combined with the compound of Formula I as described herein.
• X is OH
• Y is H
• a salt of Formula IV being a combination of a compound of Formula I and tartaric acid:
• the tartaric acid described herein may be L-(+)-tartaric acid and/or D-(-)-tartaric acid.
• the tartaric acid may be L-(+)-tartaric acid.
• the tartaric acid may be D-(-)-tartaric acid.
• the tartaric acid may be a mixture such as a racemic mixture of L-(+)-tartaric acid and D-(-)-tartaric acid.
• the ratio of the compound of Formula I and the tartaric acid may be 1 :n, i.e. the ratio of the compound of Formula I to the tartaric acid, wherein n is a number such as 0.5 or 1.
• Y is H
• the acid of Formula II is fumaric acid.
• the fumaric acid may be combined with the compound of Formula I as described herein.
• Y is H
• the ratio of the compound of Formula I and the fumaric acid may be 1 :n, wherein n is a number such as 0.5 or 1.
• n may be 0.5.
• n may be 1.
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V, wherein one or more of the hydrogen atoms of the compound of Formula I is/are replaced with deuterium. Additionally or alternatively, the salt of Formula III may be labelled with isotopes other than deuterium as described herein.
• the salt of Formula III as described herein is pharmaceutically acceptable and has unexpectedly been found to exhibit properties of high crystallinity (i.e. being substantially crystalline), not being hygroscopic, exhibiting high melting point and/or satisfactory water solubility. Furthermore, the salt of Formula III may be isolated in good chemical yield with a high purity.
• a salt of Formula III as described herein, characterized by being crystalline.
• the crystallinity may be determined by XRPD or any other appropriate method known in the art.
• the high crystallinity of the salt of Formula III makes it well-defined with respect to, for instance, melting point and XRPD. This is a benefit in making tablets and is believed to enhance storage stability.
• high crystallinity intends a degree of crystallinity of about 80% or more such as about 85%, about 90%, about 95%, about 99% or about 100% as measured by XRPD or any other appropriate method of measurement known in the art.
• the salt of Formula III as described herein, may be characterized by an XRP
• the salt of Formula III such as the salt of Formula IVa may be characterized by an XRP diffractogram comprising a peak at about 13.02 2Q such as 13.0 2Q, and optionally at least one further peak selected from the following: about 12.43 such as about 12.4, about 14.40 such as about 14.4, about 21.10 such as about 21.1 , about 24.36 such as about 24.4 20.
• the salt of Formula IVa may also be characterized by an XRP diffractogram comprising a peak at about 12.43, about 13.02, about 14.40, about 21.10, about 24.36 20, and optionally at least one further peak selected from the following: about 18.07, about 19.92 20.
• the XRP diffractogram may comprise peaks at about 12.4, about 13.0, about 14.4, about 21.1 and about 24.4 20.
• the salt of Formula IVa may also be characterized by an XRP diffractogram comprising a peak at about 12.4, about 13.0, about 14.4, about 21.1 and about 24.4 20.
• the salt of Formula III such as the salt of Formula Va may be characterized by an XRP diffractogram comprising a peak at about 15.27 20, and optionally at least one further peak selected from the following: about 7.62 such as about 7.6, about 12.98 such as about 13.0, about 21.84 such as about 21.8, about 22.98 such as about 23.0 20.
• the salt of Formula Va may also be characterized by an XRP diffractogram comprising a peak at about 7.62, about 12.98, about 15.27, about 21.84, about 22.98 20, and optionally at least one further peak selected from the following: about 18.55, about 24.08 20.
• the XRP diffractogram may comprise peaks at about 7.6, about 13.0, about 15.3, about 21.8 and about 23.0 20.
• the salt of Formula Va may also be characterized by an XRP
• diffractogram comprising a peak at about 7.62, about 12.98, about 15.27, about 18.55, about 21.84, about 22.98, about 24.08 20, and optionally at least one further peak selected from the following: about 22.65, about 30.79 20.
• the salt of Formula III such as the salt of Formula IV and the salt of Formula V has been found to have a high melting point and a satisfactory water solubility.
• the high melting point of the salt of Formula III is a benefit in, for instance, tablet making.
• the satisfactory water solubility of the salt of Formula III makes it suitable for any administration to a human, such as oral administration.
• the salt of Formula IVa has been found to have a melting point of about 187.6 °C. Further, the water solubility of the salt of Formula IVa has been found to be about 185 mg/ml_.
• the salt of Formula Va has been found to have a melting point of about 184.9 °C. Further, the water solubility of the salt of Formula Va has been found to be about 92 mg/ml_.
• the melting point and/or water solubility may be determined as described in the Examples section of this document.
• the salt of Formula IV has been found to not being hygroscopic at any tested relative humidity and that is advantageous since it allows for storage without being changed by surrounding humidity. It has been found that the salt of Formula IV changes its weight by ⁇ 0.3 % by weight or less at any humidity such as any relative humidity as described herein, i.e. it is not hygroscopic or substantially not hygroscopic. In an example, the salt of Formula IV does not change its weight at any humidity such as any tested relative humidity.
• composition comprising:
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V in admixture with a pharmaceutically acceptable excipient, carrier and/or diluent.
• the pharmaceutical composition may be provided in a single dosage form such a tablet, pill, capsule or the like.
• the amount of the compound of Formula I of the salt of Formula III in the single dosage form may vary.
• the amount of the compound of Formula I of said salt may be from about 2.0 mg up to about 10.0 mg such as about 2.5 mg to about 7.5 mg.
• the amount of the compound of Formula I of said salt may be about 5.0 mg, about 7.5 mg or about 2.5 mg.
• a patient such as a human reduces symptoms associated with a disease, disorder or condition as described herein, in particular L-DOPA induced dyskinesias, to a greater extent as compared to administration of the compound of Formula I of the salt of Formula III in a higher amount such as an amount equal to or above 10 mg.
• administration of a lower amount is more advantageous than administration of a higher amount.
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V for use as a medicament.
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein, for use in the treatment and/or prevention of a disease, disorder and/or condition which is at least one of the following: psychosis, schizophrenia, schizophreniform disorder, bipolar disorder, psychotic disorder, drug induced psychotic disorder, mood disorder, anxiety disorder, depression, obsessive-compulsive disease, dementia, age-related cognitive impairment, Autism spectrum disorders, ADHD, cerebral Palsy, Gilles de la Tourette's syndrome, brain injury, sleep disorder, sexual disorder, eating disorder, obesita, headache, pains in conditions characterized by increased muscular tone, Parkinson's disease, parkinsonian syndrome, dyskinesia, L-DOPA induced dyskinesias, Tardive dyskinesias, dystonia, tics and tremor dementia, Huntington's disease, movement disorder induced by drugs, restless legs, narcolepsy
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein, for use in the treatment and/or prevention of a disease, disorder and/or condition which is schizophrenia, L-DOPA induced dyskinesias and/or Huntington's disease.
• the salt or the pharmaceutical composition for use as described herein, wherein the salt or the pharmaceutical composition is administered to a patient such as a human in a dosage from about 2.0 mg up to about 10.0 mg such as about 2.5 mg, about 5.0 mg or about 7.5 mg.
• the disease, disorder and/or condition, or symptoms associated with said disease, disorder and/or condition is/are alleviated or reduced to a greater extent as compared to administration of the salt or the pharmaceutical composition to a patient in a dosage equal to or greater than 10 mg.
• the administration in a dosage equal to or greater than about 10 mg and the administration to provide the dosage from about 2.0 mg up to about 10.0 mg may take place an equal number of times, such as an equal number of times daily, such as twice daily.
• the expression“from... up to...” intends“from... up to but not including...”.
• the expression“from 2.0 mg up to 10.0 mg” intends“from 2.0 mg up to but not including 10.0 mg”. In the latter case, the amount 9.99 mg is included while the amount 10.0 mg is not included.
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein, for the manufacture of a medicament for use in the treatment and/or prevention of a disease, disorder and/or condition which is at least one of the following: psychosis, schizophrenia, schizophreniform disorder, bipolar disorder, psychotic disorder, drug induced psychotic disorder, mood disorder, anxiety disorder, depression, obsessive- compulsive disease, dementia, age-related cognitive impairment, Autism spectrum disorders, ADHD, cerebral Palsy, Gilles de la Tourette's syndrome, brain injury, sleep disorder, sexual disorder, eating disorder, obesity, headache, pains in conditions characterized by increased muscular tone, Parkinson's disease, parkinsonian syndrome, dyskinesia, L-DOPA induced dyskinesias, Tardive dyskinesias, dystonia, tics and tremor dementia, Huntington's disease, movement disorder induced by drugs, restless legs, nar
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein, for the manufacture of a medicament for use in the treatment and/or prevention of a disease, disorder and/or condition which is schizophrenia, L-DOPA induced dyskinesias and/or Huntington's disease.
• a salt of Formula III as described herein such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein, for the manufacture of a medicament for use in the treatment and/or prevention of a disease, disorder and/or condition which is L-DOPA induced dyskinesias.
• a salt of Formula III as described herein, or a pharmaceutical composition as described herein wherein the salt or the pharmaceutical composition is administered to a patient such as a human in a dosage from about 2.0 mg up to about 10.0 mg such as about 2.5 mg, about 5.0 mg or about 7.5 mg.
• the disease, disorder and/or condition, or symptoms associated with said disease, disorder and/or condition is/are alleviated or reduced to a greater extent as compared to administration of the salt or the pharmaceutical composition to a patient in a dosage equal to or greater than 10 mg.
• the administration to provide the dosage equal to or greater than about 10 mg and the administration to provide the dosage from about 2.0 mg up to about 10.0 mg may take place an equal number of times, such as an equal number of times daily, such as twice daily.
• a disease, disorder and/or condition which is at least one of the following: psychosis, schizophrenia, schizophreniform disorder, bipolar disorder, psychotic disorder, drug induced psychotic disorder, mood disorder, anxiety disorder, depression, obsessive-compulsive disease, dementia, age-related cognitive impairment, Autism spectrum disorders, ADHD, cerebral Palsy, Gilles de la Tourette's syndrome, brain injury, sleep disorder, sexual disorder, eating disorder, obesity, headache, pains in conditions characterized by increased muscular tone, Parkinson's disease, parkinsonian syndrome, dyskinesia, L-DOPA induced dyskinesias, Tardive dyskinesias, dystonia, tics and tremor dementia,
• Huntington's disease, movement disorder induced by drugs, restless legs, narcolepsy, Alzheimer’s disease and disorder(s) related to Alzheimer's disease comprising administering to a patient, such as a mammal, human or an animal, in need thereof, an effective amount of a salt of Formula III as described herein, such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein.
• a method for treatment and/or prevention of a disease, disorder and/or condition which is schizophrenia, L-DOPA induced dyskinesias and/or Huntington's disease; comprising administering to a patient, such as a mammal, human or an animal, in need thereof, an effective amount of a salt of Formula III as described herein, such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein.
• a method for treatment and/or prevention of a disease, disorder and/or condition which is L-DOPA induced dyskinesias comprising administering to a patient, such as a mammal, human or an animal, in need thereof, an effective amount of the salt of Formula III as described herein, such as a salt of Formula IV or a salt of Formula V, or a pharmaceutical composition as described herein.
• the effective amount of the salt of Formula III or the pharmaceutical composition may involve administration of a dosage from about 2.0 mg up to about 10.0 mg such as about 2.5 mg, about 5.0 mg or about 7.5 mg.
• a dosage from about 2.0 mg up to about 10.0 mg such as about 2.5 mg, about 5.0 mg or about 7.5 mg.
• the disease, disorder and/or condition, or symptoms associated with said disease, disorder and/or condition is/are alleviated or reduced to a greater extent as compared to administration of the salt or the pharmaceutical composition to a patient to provide the compound of Formula I in a dosage equal to or greater than 10 mg.
• the administration to provide the dosage in an amount equal to or greater than about 10 mg and the administration to provide the dosage from about 2.0 mg up to about 10.0 mg may take place an equal number of times, such as an equal number of times daily, such as twice daily.
• the dosage described herein such as a dosage from about 2.0 mg to about 10.0 mg of the salt of Formula III or the pharmaceutical composition described herein intends the dosage calculation based on the compound of Formula I, i.e. the compound of Formula I in non-salt form. For example, when the dosage is 7.5 mg this means that an amount of 7.5 mg of the compound of Formula I is provided.
• the salt of Formula III may be prepared by combining a compound of Formula I as described herein with an acid of Formula II as described herein.
• the compound of Formula I may be prepared as described herein, as described in WO 2012/143337 and/or using methods known in the art.
• the present disclosure also provides a method for preparing a salt of
• the ratio of the compound of Formula I to the acid of Formula II may be 1 :0.5 or 1 : 1.
• the solvent may be a single solvent or a mixture of solvents.
• the solvent or mixture of solvents may comprise or consist of organic solvent(s) such as ethanol.
• the step of forming a precipitate may be performed at room temperature. In this document, room temperature intends a temperature within the range of from about 20 °C to about 25 °C, such as from about 20 °C to about 22 °C.
• the acid of Formula II may be tartaric acid or fumaric acid. Salts
• combination of the compound of Formula I and an acid of Formula II has been drawn as a complex wherein the acidic proton(s) of the acid is attached to said acid.
• the acidic proton(s) of the acid of Formula II may be attached to the nitrogen atom of the compound of Formula I and/or shared between the nitrogen atom of the compound of Formula I and the acid of Formula II, and this is also intended to be encompassed by the complexes/salts described herein.
• the salt of Formula III being a 1 : 1 combination of the compound of Formula I and the acid of Formula II may also be represented as:
• the compound of Formula I of the salt of Formula III of the present disclosure may contain an atomic isotope at one or more of the atoms that constitute said compounds, i.e. said compound may be labelled with an isotope.
• the compound of Formula I may be labelled with one or more isotopes, such as for example tritium ( 3 H), deuterium ( 2 H), iodine-125 ( 125 l) or carbon-14 ( 14 C).
• the compound is labelled with one or more deuterium atoms. All isotopic variations of the compounds of the present disclosure, whether radioactive or not, are intended to be encompassed within the scope of the present disclosure.
• the present disclosure provides a compound as described herein, such as a compound of Formula I, which is labelled with one or more isotopes such as deuterium.
• the compounds labelled with an isotope as described herein may be combined with an acid as described herein thereby providing a salt as described herein.
• the assay and purity determination of the compounds were performed by gradient liquid chromatography with UV-detection at 260 nm. That means that a specific volume of the solution was evaporated and the residue was analysed by chromatography and compared with that of a chromatogram of a known amount of said intermediate.
• the unit of the solubility may be g/L or mg/ml_.
• a further water solubility test (Flask method water solubility test) was performed as follows. An excess of salt was added to water. The mixture was equilibrated (shaking) for at least 24 hours thereby providing a saturated salt solution. Then the saturated solution was clear-filtered and transferred into a clean pre-weighed flask (mv). The mass of flask + saturated solution (mvs) was recorded. The solvent was evaporated under reduced pressure until constant mass. Flask containing dried residue was weighed (mvdr). The solubility expressed as“grams of solute/kg of solvent”, i.e.“grams of salt/ kg of solvent”, was calculated according to the equation:
• (mvdr-mv) is the weight difference in kg between (i) the mass of the flask containing dried residue after evaporation of the solvent and (ii) the mass of the flask, and
• (mvs-mvdr) is the weight difference in kg between (i) the mass of the flask including the saturated salt solution and (ii) the mass of the flask containing the dried residue. Since the solubility was measured in water, and water has a density of 1 g/mL the unit of the solubility may be g/L or mg/ml_.
• Hygroscopicity test of the L-tartaric salt of [2-(3-fluoro-5-methanesulfonylphenoxy)- ethyl](propyl)amine was performed by keeping exact weight samples of the salt at varied humidity at 30°C. After one week, the samples were weighed again and based on the original weight the percentage weight difference was calculated.
• Hygroscopicity test of the hydrochloric acid salt of [2-(3-fluoro-5-methanesulfonyl- phenoxy)ethyl](propyl)amine was recorded on a TA instrument Q550000SA. The temperature was 25°C using step intervals of 10% between 0% and 95% RH in two consecutive cycles.
• the title salt was prepared according to the general procedure above.
• the salt was crystalline as determined by XRPD.
• Solubility in water 92 mg/ml_.
• the title salt was prepared according to the general procedure above with the exception that the solution was cooled to -18°C until precipitation occurred.
• the salt was crystalline as determined by XRPD.
• Solubility in water 285 mg/ml_.
• the title salt was prepared according to the general procedure above.
• the salt was crystalline as determined by XRPD.
• Solubility in water 185 mg/ml_.
• the L-tartaric acid salt of r2-(3-fluoro-5- methanesulfonylphenoxy)ethyl](propyl)amine according to Example 7 does not adsorb or desorb any significant amount of water at any humidity.
• the salt has a very low hygroscopicity, i.e. a weight change of ⁇ 0.3 % or less, even when it is exposed to a very high relative humidity such as 73%, 75%, 83% or 97% for 7 days at 30°C.
• the maleic acid salt has a low solubility and a relatively low melting point whereas the succinic acid salt has a very good solubility but a low melting point.
• the fumaric acid salt, and in particular, the L-tartaric acid salt have high melting points as well as high solubilities in water.
• the hydrochloric acid salt according to Example 1 of WO 2012/143337 has a high melting point and high water solubility, it is hygroscopic at high relative humidities.
• the L-tartaric acid salt according to the present disclosure is not hygroscopic at any relative humidities.
• an“OFF” time reduction or“good ON-time” increase of 1 hour may be considered clinically significant and has been used as an assumption in power
• a valid diary is defined as not having more than 2 hours of invalid data entries (4 invalid entries) over a given 24-hour period.
• An invalid diary entry is defined as more than one entry recorded in each half-hour interval, an unreadable entry, or the absence of an entry in each half-hour interval.
• the average diary information from 3 valid diaries (if available) for each visit will be used to calculate diary-based efficacy endpoints. If there are only 2 valid diaries for a visit, then the average information from the 2 valid diaries will be used. If only one diary is valid, information from the single valid diary will be used. If no valid diaries were available for a patient visit, then the diary information was considered missing.
• This plasma concentration range was obtained by administering to patients 2.5 mg b.i.d. - 10 mg b.i.d. of the L-tartaric acid salt of [2-(3-fluoro-5-methanesulfonyl- phenoxy)ethyl](propyl)amine.
• the doses (2.5 mg - 10 mg) are calculated on the non-salt form of [2-(3-fluoro-5-methanesulfonyl-phenoxy)ethyl](propyl)amine.
• Table 4 Improvement in Good ON time (i.e. the time the patient indicated as“ON” meaning good or practically normal mobility) in Parkinson’s patients with L-dopa induced dyskinesia (LIDs) using the L-tartaric acid salt of [2-(3-fluoro-5-methanesulfonyl- phenoxy)ethyl](propyl)amine according to Example 7 or placebo.
• LIDs L-dopa induced dyskinesia
• administration of [2-(3-fluoro-5-methanesulfonyl- phenoxy)ethyl](propyl)amine in an amount from 2.0 mg up to 10 mg such as 2.5 mg, 5.0 mg or 7.5 mg increased the good ON time to a larger extent than administration of [2-(3- fluoro-5-methanesulfonyl-phenoxy)ethyl](propyl)amine in an amount equal to or above 10 mg.

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