WO2018226622A1 - Compounds for treating huntington's disease - Google Patents

Compounds for treating huntington's disease Download PDF

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Publication number
WO2018226622A1
WO2018226622A1 PCT/US2018/035954 US2018035954W WO2018226622A1 WO 2018226622 A1 WO2018226622 A1 WO 2018226622A1 US 2018035954 W US2018035954 W US 2018035954W WO 2018226622 A1 WO2018226622 A1 WO 2018226622A1
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Prior art keywords
fluoro
alkyl
piperidin
amino
pyridazin
Prior art date
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Ceased
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PCT/US2018/035954
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English (en)
French (fr)
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WO2018226622A8 (en
Inventor
Matthew G. WOLL
Lukiana AMEDZO
Suresh Babu
Scott J. BARRAZA
Anuradha Bhattacharyya
Gary Mitchell Karp
Anthony R. MAZZOTTI
Jana Narasimhan
Jigar Patel
Anthony Turpoff
Zhenrong Xu
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PTC Therapeutics Inc
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PTC Therapeutics Inc
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Publication date
Priority to SG11201911615WA priority Critical patent/SG11201911615WA/en
Priority to JP2020516795A priority patent/JP7376471B2/ja
Priority to US16/617,450 priority patent/US11407753B2/en
Priority to CN201880050893.7A priority patent/CN111065626B/zh
Priority to MX2019014514A priority patent/MX2019014514A/es
Priority to KR1020207000124A priority patent/KR20200033249A/ko
Priority to EP18813494.4A priority patent/EP3634953B1/en
Priority to AU2018282154A priority patent/AU2018282154B2/en
Priority to EA201992878A priority patent/EA201992878A1/ru
Priority to CA3066224A priority patent/CA3066224A1/en
Priority to EP22203869.7A priority patent/EP4151627A1/en
Application filed by PTC Therapeutics Inc filed Critical PTC Therapeutics Inc
Priority to BR112019025740-3A priority patent/BR112019025740A2/pt
Priority to NZ759824A priority patent/NZ759824B2/en
Publication of WO2018226622A1 publication Critical patent/WO2018226622A1/en
Priority to IL271046A priority patent/IL271046B2/en
Anticipated expiration legal-status Critical
Publication of WO2018226622A8 publication Critical patent/WO2018226622A8/en
Priority to AU2022201299A priority patent/AU2022201299A1/en
Priority to US17/723,163 priority patent/US12384789B2/en
Priority to IL300875A priority patent/IL300875B1/en
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • 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
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47—Quinolines; Isoquinolines
    • A61K31/4709—Non-condensed quinolines and containing further heterocyclic rings
    • 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
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/50—Pyridazines; Hydrogenated pyridazines
    • A61K31/5025—Pyridazines; Hydrogenated pyridazines ortho- or peri-condensed with heterocyclic ring systems
    • 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
    • A61P25/14—Drugs for disorders of the nervous system for treating abnormal movements, e.g. chorea, dyskinesia
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
    • C07D471/08—Bridged systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
    • C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
    • C07D487/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/04—Ortho-condensed systems
    • C07D491/044—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring
    • C07D491/048—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D513/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00
    • C07D513/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for in groups C07D463/00, C07D477/00 or C07D499/00 - C07D507/00 in which the condensed system contains two hetero rings
    • C07D513/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D519/00—Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00

Definitions

  • An aspect of the present description relates to compounds, forms, and pharmaceutical compositions thereof and methods of using such compounds, forms, or compositions thereof useful for treating or ameliorating Huntington's disease.
  • another aspect of the present description relates to substituted bicyclic heteroaryl compounds, forms and
  • compositions thereof and methods of using such compounds, forms, or compositions thereof for treating or ameliorating Huntington's disease.
  • Huntington's disease is a progressive, autosomal dominant neurodegenerative disorder of the brain, having symptoms characterized by involuntary movements, cognitive impairment, and mental deterioration. Death, typically caused by pneumonia or coronary artery disease, usually occurs 13 to 15 years after the onset of symptoms. The prevalence of HD is between three and seven individuals per 100,000 in populations of western European descent. In North America, an estimated 30,000 people have HD, while an additional 200,000 people are at risk of inheriting the disease from an affected parent.
  • the disease is caused by an expansion of uninterrupted trinucleotide CAG repeats in the "mutant" huntingtin (Htt) gene, leading to production of HTT (Htt protein) with an expanded poly-glutamine (polyQ) stretch, also known as a "CAG repeat” sequence.
  • Htt huntingtin
  • polyQ poly-glutamine
  • An aspect of the present description includes compounds comprising, a compound of Formula (I):
  • An aspect of the present description includes a method for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of a compound of Formula (I) or a form thereof.
  • An aspect of the present description includes a method for use of a compound of Formula (I) or a form or composition thereof for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound of Formula (I) or a form or composition thereof.
  • An aspect of the present description includes a use for a compound of Formula (I) or a form thereof for treating or ameliorating HD in a subject in need thereof comprising,
  • An aspect of the present description includes a use for a compound of Formula (I) or a form thereof in the manufacture of a medicament for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the medicament.
  • An aspect of the present description includes a use for a compound of Formula (I) or a form thereof in a combination product with one or more therapeutic agents for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound of Formula (I) or a form thereof in combination with an effective amount of the one or more agents.
  • An aspect of the present description relates to compounds comprising, a compound of Formula (I):
  • Wi, W 2 , W 3 , W 4 , W 5 and W 6 are independently C-R a , C-R b or N, wherein, when one, two or three of Wi, W5 and W 6 are N, then W 2 , W 3 and W 4 are C-R a or C-Rb, and
  • Ri is aryl, heterocyclyl, heterocyclyl-amino, (heterocyclyl)(Ci_ 8 alkyl)amino or heteroaryl, wherein, each instance of heterocyclyl is optionally substituted with one, two or three R 3
  • each instance of heterocyclyl is optionally substituted with one, two, three or four R 3 substituents;
  • R 2 is aryl, heteroaryl, heteroaryl-amino or (heteroaryl)(Ci_ 8 alkyl)amino,
  • each instance of aryl and heteroaryl is optionally substituted with one, two or three R 6 substituents and optionally, with one additional R 7 substituent;
  • R a is, in each instance, independently selected from hydrogen, halogen or Ci_ 8 alkyl
  • R b is, in each instance, independently selected from hydrogen, halogen or Ci_ 8 alkyl
  • R 3 is, in each instance, independently selected from cyano, halogen, hydroxy, Ci_ 8 alkyl,
  • halo-Ci_ 8 alkyl Ci_ 8 alkyl-carbonyl, Ci_ 8 alkoxy, halo-Ci_ 8 alkoxy, Ci_ 8 alkoxy-Ci_ 8 alkyl, Ci_ 8 alkoxy-carbonyl, amino, Ci_ 8 alkyl-amino, (Ci_ 8 alkyl) 2 -amino, amino-Ci_ 8 alkyl, Ci- 8 alkyl-amino-Ci_ 8 alkyl, (Ci_ 8 alkyl) 2 -amino-Ci- 8 alkyl, amino-Ci_ 8 alkyl-amino,
  • Ci_ 8 alkyl-carbonyl-amino Ci_ 8 alkoxy-carbonyl-amino, hydroxy-Ci_ 8 alkyl,
  • hydroxy-Ci_ 8 alkoxy-Ci_ 8 alkyl hydroxy-Ci_ 8 alkyl-amino, (hydroxy-Ci_ 8 alkyl) 2 -amino or (hydroxy-C i_ 8 alkyl)(C i_ 8 alkyl)amino;
  • R 4 is C 3 _i 4 cycloalkyl, C 3 _i 4 cycloalkyl-Ci_ 8 alkyl, C 3 _i 4 cycloalkyl-amino, aryl-Ci_ 8 alkyl,
  • R 6 is, in each instance, independently selected from halogen, hydroxy, cyano, nitro, Ci-galkyl, d-galkenyl, cyano-Ci-galkyl, halo-Ci-galkyl, hydroxy-Ci-galkyl, Ci-galkoxy,
  • Ci-galkoxy-Ci-galkyl Ci-galkoxy-Ci-galkoxy, amino, Ci-galkyl-amino, (Ci_ 8 alkyl) 2 -amino, Ci-galkoxy-Ci-galkyl-amino, (Ci-galkoxy-Ci-galkyl, Ci_ 8 alkyl)amino or Ci_ 8 alkyl-thio; and,
  • R 7 is C 3 _i 4 cycloalkyl, C 3 _i 4 cycloalkyl-oxy, aryl, heterocyclyl, heteroaryl or heteroaryl-Ci-galkoxy; wherein a form of the compound is selected from the group consisting of a prodrug, salt, hydrate, solvate, clathrate, isotopologue, racemate, enantiomer, diastereomer, stereoisomer, polymorph and tautomer form thereof.
  • Another aspect of the present description includes a compound of Formula (I) comprising, a compound of Formula (1.1):
  • Wi, W 2 , W 3 , W 4 , W 5 and W 6 are independently C-R a , C-R b or N,
  • W 2 , W3 and W4 are C-R a or C-R b , and
  • Ri is Ci-galkyl, amino, Ci-galkyl-amino, (Ci_ 8 alkyl) 2 -amino, Ci-salkoxy-Ci-salkyl-amino,
  • aryl-Ci- 8 alkyl (Ci- 8 alkyl)amino-Ci- 8 alkyl, heterocyclyl, heterocyclyl-C i_ 8 alkyl, heterocyclyl-C i_ 8 alkoxy, heterocyclyl-amino, (heterocyclyl)(Ci_ 8 alkyl)amino, heterocyclyl-amino-Ci_ 8 alkyl, heterocyclyl-C i_ 8 alkyl-amino,
  • heterocyclyl-C i- 8 alkyl-amino-Ci_ 8 alkyl (heterocyclyl-C i_ 8 alkyl) 2 -amino-Ci_ 8 alkyl, (heterocyclyl-C i_ 8 alkyl)(Ci_ 8 alkyl)amino-Ci_ 8 alkyl, heterocyclyl-oxy,
  • heterocyclyl-carbonyl heterocyclyl-carbonyl, heterocyclyl-carbonyl-oxy, heteroaryl, heteroaryl-C i_ 8 alkyl, heteroaryl-C i- 8 alkoxy, heteroaryl-amino, heteroaryl-C i_ 8 alkyl-amino,
  • heteroaryl-C i_ 8 alkyl 2 -amino, (heteroaryl-C i_ 8 alkyl)(Ci_ 8 alkyl)amino, heteroaryl-Ci-galkyl-amino-Ci-galkyl, (heteroaryl-Ci- 8 alkyl) 2 -amino-Ci- 8 alkyl or (heteroaryl-Ci- 8 alkyl)(Ci- 8 alkyl)amino-Ci- 8 alkyl,
  • R 2 is aryl, heteroaryl, heteroaryl-amino or (heterocyclyl)(Ci_ 8 alkyl)amino,
  • each instance of aryl and heteroaryl is optionally substituted with one, two or three R 6 substituents and optionally, with one additional R 7 substituent;
  • R a is, in each instance, independently selected from hydrogen, or Ci_ 8 alkyl
  • R is, in each instance, independently selected from hydrogen, or halogen
  • R 3 is, in each instance, independently selected from cyano, halogen, hydroxy, Ci-salkyl,
  • Ci_ 8 alkyl-carbonyl Ci_ 8 alkoxy, halo-Ci_ 8 alkoxy, Ci- 8 alkoxy-Ci_ 8 alkyl, Ci-galkoxy-carbonyl, amino, Ci_ 8 alkyl-amino, (Ci_ 8 alkyl) 2 -amino, amino-Ci_ 8 alkyl, Ci-galkyl-amino-Ci-galkyl, (Ci_ 8 alkyl) 2 -amino-Ci_ 8 alkyl, amino-Ci_ 8 alkyl-amino,
  • Ci-salkyl-carbonyl-amino Ci_ 8 alkoxy-carbonyl-amino, hydroxy-C i_ 8 alkyl,
  • hydroxy-Ci_ 8 alkoxy-Ci_ 8 alkyl hydroxy-Ci_ 8 alkyl-amino, (hydroxy-Ci_ 8 alkyl) 2 -amino or (hydroxy-C i_ 8 alkyl)(C i_ 8 alkyl)amino;
  • R 4 is C 3 _i 4 cycloalkyl, C 3 _i 4 cycloalkyl-Ci_ 8 alkyl, C 3 _i 4 cycloalkyl-amino, aryl-Ci_ 8 alkyl,
  • R5 is, in each instance, independently selected from halogen, hydroxy, cyano, nitro, Ci_ 8 alkyl, halo-Ci_ 8 alkyl, Ci_ 8 alkoxy, halo-Ci_ 8 alkoxy, hydroxy-C i_ 8 alkyl, amino, Ci_ 8 alkyl-amino, (Ci_ 8 alkyl) 2 -amino, (Ci_ 8 alkyl) 2 -amino-Ci_ 8 alkyl, Ci_ 8 alkyl-thio or heteroaryl-Ci_ 8 alkyl;
  • R 6 is, in each instance, independently selected from halogen, hydroxy, cyano, nitro, Ci_ 8 alkyl, d-galkenyl, cyano-Ci_ 8 alkyl, halo-Ci_ 8 alkyl, hydroxy-Ci_ 8 alkyl, Ci_ 8 alkoxy,
  • Ci- 8 alkoxy-Ci- 8 alkyl-amino (Ci_ 8 alkoxy-Ci_ 8 alkyl, Ci_ 8 alkyl)amino or Ci_ 8 alkyl-thio;
  • R 7 is C 3 _i 4 cycloalkyl, C 3 _i 4 cycloalkyl-oxy, aryl, heterocyclyl, heteroaryl or heteroaryl-Ci_ 8 alkoxy.
  • One aspect includes a compound of Formula (I), wherein Wi is N.
  • Another aspect includes a compound of Formula (I), wherein Wi is N, W4 is C-R b and W 2 , W3,
  • W 5 and W 6 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W 2 is N.
  • Another aspect includes a compound of Formula (I), wherein W 2 is N, W4 is C-R b and Wi, W3,
  • W 5 and W 6 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W3 is N.
  • Another aspect includes a compound of Formula (I), wherein W3 is N, W4 is C-R b and Wi, W 2 ,
  • W 5 and W 6 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W4 is N.
  • Another aspect includes a compound of Formula (I), wherein W4 is N and Wi, W 2 , W3, W5 and
  • W 6 are independently C-R a .
  • One aspect includes a compound of Formula (I), wherein W5 is N.
  • Another aspect includes a compound of Formula (I), wherein W5 is N, W4 is C-R b and Wi, W 2 ,
  • W 3 and W 6 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W 6 is N.
  • Another aspect includes a compound of Formula (I), wherein W 6 is N, W4 is C-R b and Wi, W 2 , W 3 and W 5 are C-R a .
  • Another aspect includes a compound of Formula (I), wherein Ri is aryl, heterocyclyl,
  • heterocyclyl-amino (heterocyclyl)(Ci_ 8 alkyl)amino, or heteroaryl.
  • Another aspect includes a compound of Formula (I), wherein Ri is aryl or heteroaryl.
  • Another aspect includes a compound of Formula (I), wherein Ri is aryl.
  • Another aspect includes a compound of Formula (I), wherein Ri is heteroaryl.
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl,
  • heterocyclyl-amino or (heterocyclyl)(Ci_ 8 alkyl)amino.
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl.
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl-amino.
  • Another aspect includes a compound of Formula (I), wherein Ri is
  • Another aspect includes a compound of Formula (I), wherein R a is hydrogen or Ci_ 8 alkyl.
  • Another aspect includes a compound of Formula (I), wherein R b is hydrogen or halogen.
  • Another aspect includes a compound of Formula (I), wherein R 4 is heterocyclyl-Ci_ 8 alkyl or heteroaryl-C i_ 8 alkyl.
  • Another aspect includes a compound of Formula (I), wherein R5 is hydroxy-Ci_ 8 alkyl,
  • Another aspect includes a compound of Formula (I), wherein R 6 is halogen, hydroxy, cyano,
  • Ci_ 8 alkoxy-Ci 8 alkyl-amino Another aspect includes a compound of Formula (I), wherein R 7 is C3_i 4 cycloalkyl, heterocyclyl, or heteroaryl-C i_ 8 alkoxy.
  • One aspect includes a compound of Formula (I), wherein Wi and W5 are N.
  • Another aspect includes a compound of Formula (I), wherein Wi and W5 are N, W 4 is C-R b and
  • W 2 , W 3 and W 6 are C-R a .
  • One aspect includes a compound of Formula (I), wherein Wi and W 6 are N.
  • Another aspect includes a compound of Formula (I), wherein Wi and W 6 are N, W 4 is C-R b and
  • W 2 , W 3 and W 5 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W 2 and W 3 are N.
  • Another aspect includes a compound of Formula (I), wherein W 2 and W 3 are N, W 4 is C-R b and
  • Wi, W 5 and W 6 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W 2 and W 4 are N.
  • Another aspect includes a compound of Formula (I), wherein W 2 and W 4 are N, and Wi, W 3 , W5 and W 6 are independently C-R a .
  • One aspect includes a compound of Formula (I), wherein W 3 and W 4 are N.
  • Another aspect includes a compound of Formula (I), wherein W 3 and W 4 are N, and Wi, W 2 , W5 and W 6 are independently C-R a .
  • One aspect includes a compound of Formula (I), wherein W5 and W 6 are N.
  • Another aspect includes a compound of Formula (I), wherein W5 and W 6 are N, W 4 is C-R b and
  • Wi, W 2 and W 3 are C-R a .
  • Another aspect includes a compound of Formula (I), wherein W5 and W 6 are N, W 2 is C-R b and
  • Wi, W 3 and W 4 are C-R a .
  • Another aspect includes a compound of Formula (I), wherein W5 and W 6 are N, W 3 is C-R b and
  • Wi, W 2 and W 4 are C-R a .
  • One aspect includes a compound of Formula (I), wherein Wi, W5 and W 6 are N.
  • Another aspect includes a compound of Formula (I), wherein Wi, W5 and W 6 are N, W 4 is C-R b and W 2 and W 3 are C-R a .
  • One aspect includes a compound of Formula (I), wherein W 2 , W 3 and W 4 are N.
  • Another aspect includes a compound of Formula (I), wherein W 2 , W 3 and W 4 are N, and Wi, W5 and W 6 are independently C-R a .
  • One aspect includes a compound of Formula (I), wherein Ri is heterocyclyl selected from
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl selected from azetidin- l-yl, tetrahydrofuran-3-yl, pyrrolidin- l-yl, pyrrolidin-3-yl, piperidin-l-yl, piperidin-4-yl, piperazin- l-yl, azepan-4-yl, 1,4-diazepan-l-yl,
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl selected from pyrrolidinyl, piperidinyl, piperazinyl, azepanyl, 1 ,2,5,6-tetrahydropyridinyl,
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl selected from pyrrolidin-3-yl, piperidin-4-yl, piperazin- l-yl, azepan-4-yl, l,2,5,6-tetrahydropyridin-5-yl, l,2,3,6-tetrahydropyridin-4-yl, 3-azabicyclo[3.1.0]hexan-3-yl,
  • Another aspect includes a compound of Formula (I), wherein Ri is substituted heterocyclyl selected from N,N-dimethylpyrrolidin-3-amine, N,N-dimethylpiperidin-4-amine, N,N-4-trimethylpiperidin-4-amine, 1 -methylpiperidin-4-yl, 1 -ethylpiperidin-4-yl,
  • Another aspect includes a compound of Formula (I), wherein Ri is substituted heterocyclyl
  • One aspect includes a compound of Formula (I), wherein Ri is heterocyclyl-amino, wherein
  • heterocyclyl is selected from azetidinyl, pyrrolidinyl, piperidinyl, 9-azabicyclo[3.3.1]nonyl or (1 ?,5S)-9-azabicyclo[3.3.1]nonyl; and, wherein, each instance of heterocyclyl is optionally substituted with R 3 and R 4 substituents.
  • Another aspect includes a compound of Formula (I), wherein Ri is heterocyclyl-amino selected from azetidin-3-yl-amino, pyrrolidin-3-yl-amino, piperidin-4-yl-amino,
  • One aspect includes a compound of Formula (I), wherein Ri is (heterocyclyl)(Ci_ 8 alkyl)amino, wherein heterocyclyl is selected from pyrrolidinyl or piperidinyl; and, wherein, each instance of heterocyclyl is optionally substituted with R 3 and R 4 substituents.
  • Another aspect includes a compound of Formula (I), wherein Ri is (heterocyclyl)(Ci_ 8 alkyl)amino wherein heterocyclyl is piperidinyl.
  • Another aspect includes a compound of Formula (I), wherein Ri is (heterocyclyl)(Ci_ 8 alkyl)amino selected from (pyrrolidin-3-yl)(methyl)amino or (piperidin-4-yl)(methyl)amino; wherein, each instance of heterocyclyl is optionally substituted with R 3 and R4 substituents.
  • Ri is (heterocyclyl)(Ci_ 8 alkyl)amino selected from (pyrrolidin-3-yl)(methyl)amino or (piperidin-4-yl)(methyl)amino; wherein, each instance of heterocyclyl is optionally substituted with R 3 and R4 substituents.
  • R 3 is selected from cyano, halogen, hydroxy, oxo, Ci_ 8 alkyl, halo-Ci_ 8 alkyl, Ci_ 8 alkyl-carbonyl, Ci_ 8 alkoxy, halo-Ci_ 8 alkoxy, Ci_ 8 alkoxy-Ci_ 8 alkyl, Ci_ 8 alkoxy-carbonyl, amino, Ci_ 8 alkyl-amino, (Ci_ 8 alkyl)2-amino, amino-Ci_ 8 alkyl, Ci_ 8 alkyl-amino-Ci_ 8 alkyl, (Ci- 8 alkyl)2-amino-Ci_ 8 alkyl,
  • Ci_ 8 alkyl-carbonyl-amino Ci_ 8 alkoxy-carbonyl-amino, hydroxy-Ci_ 8 alkyl,
  • hydroxy-Ci- 8 alkoxy-Ci_ 8 alkyl hydroxy-Ci_ 8 alkyl-amino, (hydroxy-Ci_ 8 alkyl)2-amino or (hydroxy-C i_ 8 alkyl)(C i_ 8 alkyl)amino.
  • Another aspect includes a compound of Formula (I), wherein R 3 is selected from cyano, halogen, hydroxy, oxo, Ci_ 8 alkyl, halo-Ci_ 8 alkyl, Ci_ 8 alkoxy, Ci_ 8 alkoxy-Ci_ 8 alkyl,
  • Ci- 8 alkoxy-carbonyl amino, Ci_ 8 alkyl-amino, (Ci_ 8 alkyl)2-amino, amino-Ci_ 8 alkyl, Ci- 8 alkyl-amino-Ci_ 8 alkyl, (Ci- 8 alkyl)2-amino-Ci_ 8 alkyl, Ci- 8 alkyl-amino-Ci_ 8 alkyl-amino, Ci_ 8 alkoxy-Ci_ 8 alkyl-amino, Ci_ 8 alkoxy-carbonyl-amino, hydroxy-C i_ 8 alkyl, hydroxy-Ci-galkoxy-Ci-galkyl, hydroxy-Ci_ 8 alkyl-amino, (hydroxy-Ci_ 8 alkyl) 2 -amino or
  • Another aspect includes a compound of Formula (I), wherein R 3 is Ci_ 8 alkyl selected from
  • R 3 is Ci_ 8 alkyl selected from methyl, ethyl, propyl, isopropyl or tert-butyl.
  • Another aspect includes a compound of Formula (I), wherein R 3 is halo-Ci_ 8 alkyl selected from trihalo-methyl, dihalo-methyl, halo-methyl, trihalo-ethyl, dihalo-ethyl, halo-ethyl, trihalo-propyl, dihalo-propyl or halo-propyl; wherein, halo is selected from fluoro, chloro, bromo or iodo.
  • Another aspect includes a compound of Formula (I), wherein R 3 is halo-Ci_ 8 alkyl selected from trihalo-methyl, dihalo-methyl, halo-methyl, trihalo-ethyl, dihalo-ethyl, trihalo-propyl or dihalo-propyl; wherein, halo is selected from fluoro, chloro, bromo or iodo.
  • Another aspect includes a compound of Formula (I), wherein R 3 is hydroxy-Ci_ 8 alkyl selected from hydroxy-methyl, hydroxy-ethyl, hydroxy-propyl, dihydroxy-propyl, hydroxy-butyl or dihydroxy-butyl.
  • Another aspect includes a compound of Formula (I), wherein R 3 is hydroxy-Ci_ 8 alkyl selected from hydroxy-methyl, hydroxy-ethyl, dihydroxy-propyl, hydroxy-butyl or
  • Another aspect includes a compound of Formula (I), wherein R 3 is Ci_ 8 alkoxy selected from
  • Another aspect includes a compound of Formula (I), wherein R 3 is halo-Ci_ 8 alkoxy selected from trihalo-methoxy, dihalo-methoxy, halo-methoxy, trihalo-ethoxy, dihalo-ethoxy, halo-ethoxy, trihalo-propoxy, dihalo-propoxy or halo-propoxy; wherein, halo is selected from fluoro, chloro, bromo or iodo.
  • Another aspect includes a compound of Formula (I), wherein R 3 is Ci_ 8 alkoxy-carbonyl-amino selected from methoxy-carbonyl- amino, ethoxy-carbonyl-amino,
  • propoxy-carbonyl-amino isopropoxy-carbonyl-amino, tert-butoxy-carbonyl-amino.
  • Another aspect includes a compound of Formula (I), wherein R 4 is C 3 _i 4 cycloalkyl,
  • Another aspect includes a compound of Formula (I), wherein R5 is, in each instance,
  • Ci_ 8 alkyl-amino independently selected from halogen, hydroxy, cyano, nitro, Ci_ 8 alkyl, halo-Ci_ 8 alkyl, Ci- 8 alkoxy, halo-Ci_ 8 alkoxy, hydroxy-Ci_ 8 alkyl, amino, Ci_ 8 alkyl-amino,
  • One aspect includes a compound of Formula (I), wherein R 2 is aryl, heteroaryl, heteroaryl- amino, (heteroaryl)(Ci_ 8 alkyl)amino or (heterocyclyl)(Ci_ 8 alkyl)amino.
  • Another aspect includes a compound of Formula (I), wherein R 2 is aryl, heteroaryl,
  • heteroaryl-amino or (heteroaryl)(Ci_ 8 alkyl)amino.
  • Another aspect includes a compound of Formula (I), wherein R 2 is aryl.
  • Another aspect includes a compound of Formula (I), wherein R 2 is heteroaryl.
  • Another aspect includes a compound of Formula (I), wherein R 2 is heteroaryl-amino.
  • Another aspect includes a compound of Formula (I), wherein R 2 is (heteroaryl)(Ci_ 8 alkyl)amino.
  • Another aspect includes a compound of Formula (I), wherein R 2 is
  • R 2 is heteroaryl selected from thienyl, lH-pyrazolyl, lH-imidazolyl, 1,3-thiazolyl, 1,2,4-oxadiazolyl, 1,3,4-oxadiazolyl, pyridinyl, pyrimidinyl, IH-indolyl, 2H-indolyl, IH-indazolyl, 2H-indazolyl, indolizinyl, benzofuranyl, benzothienyl, lH-benzimidazolyl, 1,3-benzothiazolyl, 1,3-benzoxazolyl, 9H-purinyl, furo[3,2- ]pyridinyl, furo[3,2-c]pyridinyl, furo[2,3-c]pyridinyl,
  • Another aspect includes a compound of Formula (I), wherein R 2 is heteroaryl selected from thien-2-yl, thien-3-yl, lH-pyrazol-3-yl, lH-pyrazol-4-yl, lH-pyrazol-5-yl,
  • imidazo[ 1 ,2- ]pyridazin-6-yl imidazo[ 1 ,2- ⁇ 3]pyrazin-2-yl, imidazo[ 1 ,2- ⁇ 3]pyrazin-6-yl, 3H-imidazo[4,5-b]pyridin-5-yl, imidazo[2,l- ][l,3]thiazol-6-yl,
  • One aspect includes a compound of Formula (I), wherein R 6 is selected from halogen, hydroxy, cyano, nitro, Ci-galkyl, halo-Ci-galkyl, hydroxy-Ci-galkyl, Ci-galkoxy, halo-Ci- 8 alkoxy, Ci- 8 alkoxy-Ci- 8 alkyl, Ci_ 8 alkoxy-Ci_ 8 alkoxy, (Ci_ 8 alkyl) 2 -amino-Ci- 8 alkoxy, heteroaryl- Ci_ 8 alkoxy, aryl-oxy, (Ci_ 8 alkyl) 2 -amino, Ci_ 8 alkoxy-Ci_ 8 alkyl-amino, Ci_ 8 alkyl-thio, C3_i 4 cycloalkyl; wherein, halogen and halo is selected from fluoro, chloro, bromo or iodo.
  • Another aspect includes a compound of Formula (I), wherein R 6 is Ci_ 8 alkyl selected from
  • Another aspect includes a compound of Formula (I), wherein R 6 is Ci_ 8 alkyl selected from methyl, ethyl, propyl, isopropyl or tert-butyl.
  • Another aspect includes a compound of Formula (I), wherein R 6 is halo-Ci_ 8 alkyl selected from trihalo-methyl, dihalo-methyl, halo-methyl, trihalo-ethyl, dihalo-ethyl, halo-ethyl, trihalo-propyl, dihalo-propyl or halo-propyl; wherein, halo is selected from fluoro, chloro, bromo or iodo.
  • Another aspect includes a compound of Formula (I), wherein R 7 is C 3 _i 4 cycloalkyl,
  • One aspect includes a compound of Formula (I), wherein R a is hydrogen or Ci_ 8 alkyl.
  • One aspect includes a compound of Formula (I), wherein R b is hydrogen or Ci_ 8 alkyl.
  • Another aspect includes a compound of Formula (I), wherein R is halo.
  • One aspect of the compound of Formula (I) includes a compound selected from Formula (la),
  • Another aspect of the compound of Formula (I) includes the compound selected from Formula (lb), Formula (Ic), Formula (Ie), Formula (If), Formula (Ig), Formula (Ii), Formula (Ij), Formula (Ik), Formula (Im) or Formula (In):
  • Another aspect of the compound of Formula (I) includes the compound selected from of Formula (lal), Formula (Ibl), Formula (Icl), Formula (Idl), Formula (lel), Formula (Ifl), Formula (Igl), Formula (Ihl), Formula (Iil), Formula (Ij l), Formula (Ikl), Formula (111), Formula (Iml) or Formula (Inl), respectively:
  • Another aspect of the compound of of Formula (I) includes the compound selected from
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Ibl):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Icl):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Idl):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (lel):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Igl):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Ihl):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Iil):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Ij 1):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Ikl):
  • Another aspect of the compound of Formula (I) includes the compound of Formula ( ⁇ 1):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Iml):
  • Another aspect of the compound of Formula (I) includes the compound of Formula (Inl):
  • One aspect of the compound of Formula (I) or a form thereof includes a compound selected from the group consisting of:
  • the form of the compound is selected from the group consisting of a salt, prodrug, hydrate, solvate, clathrate, isotopologue, racemate, enantiomer, diastereomer, stereoisomer, polymorph and tautomer form thereof.
  • An aspect the compound of Formula (I) or a form thereof includes a compound selected from the group consisting of:
  • Another aspect of the compound of Formula (I) or a form thereof is a compound salt selected from the group consisting of:
  • An aspect of the present description includes a method for preventing, treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of a compound of Formula (I) or a form thereof.
  • An aspect of the present description includes a method for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of a compound of Formula (I) or a form thereof.
  • Another aspect of the present description includes a method for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of a compound salt of Formula (I) or a form thereof.
  • An aspect of the present description includes a method for use of a compound of Formula (I) or a form or composition thereof for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound of Formula (I) or a form or composition thereof.
  • Another aspect of the present description includes a method for use of a compound salt of Formula (I) or a form or composition thereof for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound salt of Formula (I) or a form thereof.
  • An aspect of the present description includes a use for a compound of Formula (I) or a form thereof for treating or ameliorating HD in a subject in need thereof comprising,
  • Another aspect of the present description includes a use for a compound salt of Formula (I) or a form thereof for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound salt of Formula (I) or a form thereof.
  • An aspect of the present description includes a use for a compound of Formula (I) or a form thereof in the manufacture of a medicament for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the medicament.
  • Another aspect of the present description includes a use for a compound salt of Formula (I) or a form thereof in the manufacture of a medicament for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the medicament.
  • An aspect of the present description includes a use for a compound of Formula (I) or a form thereof in a combination product with one or more therapeutic agents for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound of Formula (I) or a form thereof in combination with an effective amount of the one or more agents.
  • Another aspect of the present description includes a use for a compound salt of Formula (I) or a form thereof in a combination product with one or more therapeutic agents for treating or ameliorating HD in a subject in need thereof comprising, administering to the subject an effective amount of the compound salt of Formula (I) or a form thereof in combination with an effective amount of the one or more agents.
  • Ci_ 8 alkyl generally refers to saturated hydrocarbon radicals having from one to eight carbon atoms in a straight or branched chain configuration, including, but not limited to, methyl, ethyl, n-propyl (also referred to as propyl or propanyl), isopropyl, n-butyl (also referred to as butyl or butanyl), isobutyl, sec -butyl, tert-butyl, n-pentyl (also referred to as pentyl or pentanyl), n-hexyl (also referred to as hexyl or hexanyl), n-heptyl (also referred to as heptyl or heptanyl), n-octyl and the like.
  • Ci_ 8 alkyl includes, but is not limited to, Ci_ 6 alkyl, Ci_ 4 alkyl and the like.
  • a Ci_ 8 alkyl radical is optionally substituted with substituent species as described herein where allowed by available valences.
  • C 2 _ 8 alkenyl generally refers to partially unsaturated
  • C 2 - 8 alkenyl includes, but is not limited to, C 2 _ 6 alkenyl, C 2 - 4 alkenyl and the like.
  • a C 2 _ 8 alkenyl radical is optionally substituted with substituent species as described herein where allowed by available valences.
  • C 2 _ 8 alkynyl generally refers to partially unsaturated
  • C 2 _ 8 alkynyl includes, but is not limited to, C 2 _ 6 alkynyl, C 2 _ 4 alkynyl and the like.
  • a C 2 _ 8 alkynyl radical is optionally substituted with substituent species as described herein where allowed by available valences.
  • Ci_ 8 alkoxy generally refers to saturated hydrocarbon radicals having from one to eight carbon atoms in a straight or branched chain configuration of the formula: -0-Ci_ 8 alkyl, including, but not limited to, methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, sec-butoxy, tert-butoxy, n-pentoxy, n-hexoxy and the like.
  • Ci_ 8 alkoxy includes, but is not limited to, Ci_ 6 alkoxy, Ci- 4 alkoxy and the like.
  • a Ci-galkoxy radical is optionally substituted with substituent species as described herein where allowed by available valences.
  • C 3 _i 4 cycloalkyl generally refers to a saturated or partially unsaturated monocyclic, bicyclic or polycyclic hydrocarbon radical, including, but not limited to, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclohexenyl, cycloheptyl, cyclooctyl, lH-indanyl, indenyl, tetrahydro-naphthalenyl and the like.
  • C 3 _i 4 cycloalkyl includes, but is not limited to, C 3 _ 8 cycloalkyl, C5_ 8 cycloalkyl, C 3 _iocycloalkyl and the like.
  • a C 3 _i 4 cycloalkyl radical is optionally substituted with substituent species as described herein where allowed by available valences.
  • aryl generally refers to a monocyclic, bicyclic or polycyclic aromatic carbon atom ring structure radical, including, but not limited to, phenyl, naphthyl, anthracenyl, fluorenyl, azulenyl, phenanthrenyl and the like.
  • An aryl radical is optionally substituted with substituent species as described herein where allowed by available valences.
  • heteroaryl generally refers to a monocyclic, bicyclic or polycyclic aromatic carbon atom ring structure radical in which one or more carbon atom ring members have been replaced, where allowed by structural stability, with one or more
  • heteroatoms such as an O, S or N atom, including, but not limited to, furanyl, thienyl, pyrrolyl, pyrazolyl, imidazolyl, isoxazolyl, isothiazolyl, oxazolyl, 1,3-thiazolyl, triazolyl, oxadiazolyl, thiadiazolyl, tetrazolyl, pyridinyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, indolyl, indazolyl, indolizinyl, isoindolyl, benzofuranyl, benzothienyl, benzoimidazolyl, 1,3-benzothiazolyl,
  • 1,3-benzoxazolyl purinyl, quinolinyl, isoquinolinyl, quinazolinyl, quinoxalinyl, 1,3-diazinyl, 1,2-diazinyl, 1,2-diazolyl, 1,4-diazanaphthalenyl, acridinyl, furo[3,2- ]pyridinyl,
  • a heteroaryl radical is optionally substituted on a carbon or nitrogen atom ring member with substituent species as described herein where allowed by available valences.
  • heteroaryl radical may differ, such as in non- limiting examples where furanyl may also be referred to as furyl, thienyl may also be referred to as thiophenyl, pyridinyl may also be referred to as pyridyl, benzothienyl may also be referred to as benzothiophenyl and 1,3-benzoxazolyl may also be referred to as 1,3-benzooxazolyl.
  • the term for a heteroaryl radical may also include other regioisomers, such as in non-limiting examples where the term pyrrolyl may also include 2H-pyrrolyl, 3H-pyrrolyl and the like, the term pyrazolyl may also include IH-pyrazolyl and the like, the term imidazolyl may also include IH-imidazolyl and the like, the term triazolyl may also include lH-l,2,3-triazolyl and the like, the term oxadiazolyl may also include 1,2,4-oxadiazolyl, 1,3,4-oxadiazolyl and the like, the term tetrazolyl may also include lH-tetrazolyl, 2H-tetrazolyl and the like, the term indolyl may also include lH-indolyl and the like, the term indazolyl may also include lH-indazolyl and the like, the term indazolyl may also
  • heterocyclyl generally refers to a saturated or partially unsaturated monocyclic, bicyclic or polycyclic carbon atom ring structure radical in which one or more carbon atom ring members have been replaced, where allowed by structural stability, with a heteroatom, such as an O, S or N atom, including, but not limited to, oxiranyl, oxetanyl, azetidinyl, tetrahydrofuranyl, pyrrolinyl, pyrrolidinyl, pyrazolinyl, pyrazolidinyl, imidazolinyl, imidazolidinyl, isoxazolinyl, isoxazolidinyl, isothiazolinyl, isothiazolidinyl, oxazolinyl, oxazolidinyl, thiazolinyl, thiazolidinyl, triazolinyl, triazolidinyl, triazolidinyl,
  • a heterocyclyl radical is optionally substituted on a carbon or nitrogen atom ring member with substituent species as described herein where allowed by available valences.
  • heterocyclyl radical may differ, such as in non- limiting examples where 1,3-benzodioxolyl may also be referred to as benzo[ ⁇ i][l,3]dioxolyl and 2,3-dihydro- l,4-benzodioxinyl may also be referred to as 2,3-dihydrobenzo[ ] [l,4]dioxinyl.
  • heteroaryl-Ci-salkyl refers to a radical of the
  • Ci-salkoxy-Ci-galkyl refers to a radical of the
  • ''Ci_ 8 alkoxy-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci_ 8 alkyl-0-Ci_ 8 alkyl.
  • (Ci- 8 alkoxy-Ci_ 8 alkyl)2-amino refers to a radical of the formula: -N(Ci- 8 alkyl-0-Ci_ 8 alkyl) 2 .
  • Ci_ 8 alkoxy-Ci_ 8 alkyl-amino-Ci_ 8 alkoxy refers to a radical of the formula: -0-Ci_ 8 alkyl-NH-Ci_ 8 alkyl-0-Ci_ 8 alkyl.
  • (Ci- 8 alkoxy-Ci- 8 alkyl) 2 -amino-Ci- 8 alkoxy refers to a radical of the formula: -0-Ci- 8 alkyl-N(Ci_ 8 alkyl-0-Ci- 8 alkyl) 2 .
  • (Ci- 8 alkoxy-Ci- 8 alkyl)(Ci- 8 alkyl)amino-Ci_ 8 alkoxy refers to a radical of the formula: -0-Ci- 8 alkyl-N(Ci-8alkyl)(Ci-8alkyl-0-Ci- 8 alkyl).
  • Ci_ 8 alkoxy-Ci_ 8 alkyl-amino-Ci_ 8 alky ' refers to a radical of the formula: -Ci_ 8 alkyl-NH-Ci_ 8 alkyl-0-Ci_ 8 alkyl.
  • (Ci- 8 alkoxy-Ci- 8 alkyl) 2 -amino-Ci- 8 alky ' refers to a radical of the formula: -Ci- 8 alkyl-N(Ci-8alkyl-0-Ci-8alkyl) 2 .
  • (Ci_ 8 alkoxy-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci_ 8 alkyl-N(Ci_ 8 alkyl)(Ci_ 8 alkyl-0-Ci_ 8 alkyl).
  • Ci- 8 alkoxy-carbonyl refers to a radical of the
  • Ci_ 8 alkoxy-carbonyl-C 2 _ 8 alkeny ' refers to a radical of the formula: -C 2 _ 8 alkenyl-C(0)-0-Ci_ 8 alkyl.
  • Ci_ 8 alkoxy-carbonyl-amino refers to a radical of the formula: -NH-C(0)-0-Ci_ 8 alkyl.
  • heteroaryl-C i_ 8 alkoxy refers to a radical of the
  • Ci_ 8 alkyl-amino refers to a radical of the
  • (Ci_ 8 alkyl) 2 -amino refers to a radical of the
  • Ci- 8 alkyl-amino-C 2 - 8 alkenyl refers to a radical of the formula: -C 2 - 8 alkenyl-NH-Ci_ 8 alkyl.
  • (Ci_ 8 alkyl) 2 -amino-C 2 _ 8 alkenyl refers to a radical of the formula: -C 2 _ 8 alkenyl-N(Ci_ 8 alkyl) 2 .
  • Ci- 8 alkyl-amino-Ci_ 8 alkoxy refers to a radical of the formula: -0-Ci_ 8 alkyl-NH-Ci_ 8 alkyl.
  • (Ci_ 8 alkyl) 2 -amino-Ci_ 8 alkoxy refers to a radical of the formula: -0-Ci_ 8 alkyl-N(Ci_ 8 alkyl) 2 .
  • Ci- 8 alkyl-amino-Ci- 8 alkyl refers to a radical of the formula: -Ci- 8 alkyl-NH-Ci_ 8 alkyl.
  • (Ci-salkyl ⁇ -amino-Ci-salkyl” refers to a radical of the formula: -Ci_ 8 alkyl-N(Ci- 8 alkyl) 2 .
  • ''Ci_ 8 alkyl-amino-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci_ 8 alkyl-NH-Ci_ 8 alkyl.
  • (Ci- 8 alkyl)2-amino-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci- 8 alkyl-N(Ci_ 8 alkyl) 2 .
  • (Ci_ 8 alkyl-amino-Ci_ 8 alkyl) 2 -amino refers to a radical of the formula: -N(Ci_ 8 alkyl-NH-Ci_ 8 alkyl) 2 .
  • [(Ci- 8 alkyl)2-amino-Ci- 8 alkyl] 2 -amino refers to a radical of the formula: -N[Ci- 8 alkyl-N(Ci- 8 alkyl) 2 ] 2 -
  • (Ci_ 8 alkyl-amino-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(Ci_ 8 alkyl-NH-Ci_ 8 alkyl).
  • Ci_ 8 alkyl-amino-C 2 - 8 alkynyl refers to a radical of the formula: -C 2 - 8 alkynyl-NH-Ci_ 8 alkyl.
  • (Ci- 8 alkyl)2-amino-C2- 8 alkynyl refers to a radical of the formula: -C 2 - 8 alkynyl-N(Ci_ 8 alkyl) 2 .
  • Ci_ 8 alkyl-carbonyl refers to a radical of the
  • Ci_ 8 alkyl-carbonyl-amino refers to a radical of the
  • Ci_ 8 alkyl-thio refers to a radical of the formula: -S-Ci_ 8 alkyl.
  • amino-C 2 - 8 alkenyl refers to a radical of the
  • amino-Ci_ 8 alkoxy refers to a radical of the
  • amino-Ci_ 8 alkyl refers to a radical of the
  • amino-Ci_ 8 alkyl-amino refers to a radical of the
  • (amino-Ci_ 8 alkyl) 2 -amino refers to a radical of the formula: -N(Ci- 8 alkyl-NH 2 ) 2 -
  • (amino-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(Ci_ 8 alkyl-NH 2 ).
  • amino-C 2 - 8 alkynyl refers to a radical of the
  • aryl-Ci-salkoxy-carbonyl refers to a radical of the
  • aryl-Ci- 8 alkyl refers to a radical of the formula: -Ci- 8 alkyl-aryl.
  • aryl-Ci_ 8 alkyl-amino refers to a radical of the
  • (aryl-Ci_ 8 alkyl) 2 -amino refers to a radical of the
  • (aryl-Ci- 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(Ci_ 8 alkyl-aryl).
  • aryl-Ci_ 8 alkyl-amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci_ 8 alkyl-NH-Ci_ 8 alkyl-aryl.
  • (aryl-Ci- 8 alkyl) 2 -amino-Ci- 8 alkyl refers to a radical of the formula: -Ci_ 8 alkyl-N(Ci_ 8 alkyl-aryl) 2 .
  • (aryl-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci- 8 alkyl-N(Ci- 8 alkyl)(Ci_ 8 alkyl-aryl).
  • aryl-amino refers to a radical of the formula: -NH-aryl.
  • aryl-amino-carbonyl refers to a radical of the
  • aryl-sulfonyloxy-Ci_ 8 alkyl refers to a radical of the
  • benzoxy-carbonyl refers to a radical of the
  • C 3 -i 4 cycloalkyl-Ci_ 8 alkyl refers to a radical of the
  • C 3 _i 4 cycloalkyl-amino refers to a radical of the
  • C 3 _i 4 cycloalkyl-oxy refers to a radical of the
  • aryl-oxy refers to a radical of the formula: -O-aryl.
  • halo or halogen generally refers to a halogen atom radical, including fluoro, chloro, bromo and iodo.
  • halo-Ci_ 8 alkoxy refers to a radical of the
  • Ci_ 8 alkyl is partially or completely substituted with one or more halogen atoms where allowed by available valences.
  • halo-Ci_ 8 alkyl refers to a radical of the
  • Ci_ 8 alkyl-halo wherein Ci_ 8 alkyl is partially or completely substituted with one or more halogen atoms where allowed by available valences.
  • halo-Ci_ 8 alkyl-amino refers to a radical of the
  • halo-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(Ci_ 8 alkyl-halo).
  • halo-Ci_ 8 alkyl) 2 -amino refers to a radical of the
  • heteroaryl-Ci_ 8 alkoxy refers to a radical of the
  • heteroaryl-Ci- 8 alkyl refers to a radical of the
  • heteroaryl-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci_ 8 alkyl-heteroaryl.
  • heteroaryl-Ci_ 8 alkyl) 2 -amino refers to a radical of the formula: -N(Ci_ 8 alkyl-heteroaryl) 2 .
  • heteroaryl-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci- 8 alkyl)(Ci_ 8 alkyl-heteroaryl).
  • heteroaryl-Ci- 8 alkyl-amino-Ci- 8 alkyl refers to a radical of the formula: -Ci_ 8 alkyl-NH-Ci_ 8 alkyl-heteroaryl.
  • (heteroaryl-Ci-salkyl ⁇ -amino-Ci-galkyl) refers to a radical of the formula: -Ci-8alkyl-N(Ci_8alkyl-heteroaryl)2.
  • heteroaryl-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci_ 8 alkyl-N(Ci_ 8 alkyl)(Ci_ 8 alkyl-heteroaryl).
  • heteroaryl- amino refers to a radical of the
  • heterocyclyl-Ci-salkoxy refers to a radical of the
  • heterocyclyl-Ci-galkyl refers to a radical of the
  • heterocyclyl-Ci-galkyl-amino refers to a radical of the formula: -NH-Ci-galkyl-heterocyclyl.
  • heterocyclyl-Ci_ 8 alkyl 2 -amino refers to a radical of the formula: -N(Ci_8alkyl-heterocyclyl)2.
  • heterocyclyl-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(Ci_ 8 alkyl-heterocyclyl).
  • heterocyclyl-Ci-salkyl-amino-Ci-salkyl refers to a radical of the formula: -Ci-galkyl-NH-Ci-galkyl-heterocyclyl.
  • heterocyclyl-Ci_ 8 alkyl) 2 -amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci_8alkyl-N(Ci_8alkyl-heterocyclyl) 2 .
  • heterocyclyl-Ci- 8 alkyl)(Ci- 8 alkyl)amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci- 8 alkyl-N(Ci- 8 alkyl)(Ci_ 8 alkyl-heterocyclyl).
  • heterocyclyl-amino refers to a radical of the
  • (heterocyclyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(heterocyclyl).
  • heterocyclyl-amino-Ci-salkyl refers to a radical of the formula: -Ci-galkyl-NH-heterocyclyl.
  • heterocyclyl-carbonyl refers to a radical of the
  • heterocyclyl-carbonyl-oxy refers to a radical of the formula: -0-C(0)-heterocyclyl.
  • heterocyclyl-oxy refers to a radical of the
  • hydroxy refers to a radical of the formula: -OH.
  • hydroxy-Ci-galkoxy-Ci-galkyl refers to a radical of the formula: -Ci_ 8 alkyl-0-Ci_ 8 alkyl-OH.
  • hydroxy-Ci_ 8 alkyl refers to a radical of the
  • Ci_ 8 alkyl-OH formula: -Ci_ 8 alkyl-OH, wherein Ci_ 8 alkyl is partially or completely substituted with one or more hydroxy radicals where allowed by available valences.
  • hydroxy-Ci_ 8 alkyl-amino refers to a radical of the
  • (hydroxy-Ci_ 8 alkyl)2-amino refers to a radical of the formula: -N(Ci_ 8 alkyl-OH) 2 .
  • hydroxy-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci_ 8 alkyl)(Ci_ 8 alkyl-OH).
  • hydroxy-Ci- 8 alkyl-amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci- 8 alkyl-NH-Ci_ 8 alkyl-OH.
  • (hydroxy-Ci_ 8 alkyl) 2 -amino-Ci_ 8 alky ' refers to a radical of the formula: -Ci_ 8 alkyl-N(Ci_ 8 alkyl-OH) 2 .
  • hydroxy-Ci- 8 alkyl)(Ci- 8 alkyl)amino-Ci_ 8 alkyl refers to a radical of the formula: -Ci_ 8 alkyl-N(Ci- 8 alkyl)(Ci_ 8 alkyl-OH).
  • hydroxy-Ci_ 8 alkyl-amino-Ci_ 8 alkoxy refers to a radical of the formula: -0-Ci_ 8 alkyl-NH-Ci_ 8 alkyl-OH.
  • (hydroxy-Ci- 8 alkyl) 2 -amino-Ci- 8 alkoxy refers to a radical of the formula: -0-Ci- 8 alkyl-N(Ci_ 8 alkyl-OH) 2 .
  • hydroxy-Ci_ 8 alkyl)(Ci_ 8 alkyl)amino-Ci_ 8 alkoxy refers to a radical of the formula: -0-Ci_ 8 alkyl-N(Ci_ 8 alkyl)(Ci_ 8 alkyl-OH).
  • hydroxy-Ci- 8 alkyl-amino-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci- 8 alkyl-NH-Ci_ 8 alkyl-OH.
  • (hydroxy-Ci- 8 alkyl-amino-Ci_ 8 alkyl) 2 -amino refers to a radical of the formula: -N(Ci_ 8 alkyl-NH-Ci- 8 alkyl-OH) 2 .
  • (hydroxy-Ci_ 8 alkyl) 2 -amino-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci_ 8 alkyl-N(Ci_ 8 alkyl-OH) 2 .
  • hydroxy-Ci- 8 alkyl-amino-Ci- 8 alkyl)(Ci_ 8 alkyl)amino refers to a radical of the formula: -N(Ci- 8 alkyl)(Ci- 8 alkyl-NH-Ci_ 8 alkyl-OH).
  • the term "[(hydroxy-Ci_ 8 alkyl) 2 -amino-Ci_ 8 alkyl](Ci_ 8 alkyl)amino" refers to a radical of the formula: -N(Ci_ 8 alkyl)[Ci_ 8 alkyl-N(Ci_ 8 alkyl-OH) 2 ].
  • hydroxy-Ci- 8 alkyl)(Ci- 8 alkyl)amino-Ci_ 8 alkyl-amino refers to a radical of the formula: -NH-Ci_ 8 alkyl-N(Ci- 8 alkyl,Ci_ 8 alkyl-OH).
  • substituted means positional variables on the atoms of a core molecule that are substituted at a designated atom position, replacing one or more hydrogens on the designated atom, provided that the designated atom' s normal valency is not exceeded, and that the substitution results in a stable compound. Combinations of substituents and/or variables are permissible only if such combinations result in stable compounds.
  • any carbon as well as heteroatom with valences that appear to be unsatisfied as described or shown herein is assumed to have a sufficient number of hydrogen atom(s) to satisfy the valences described or shown.
  • the term "and the like,” with reference to the definitions of chemical terms provided herein, means that variations in chemical structures that could be expected by one skilled in the art include, without limitation, isomers (including chain, branching or positional structural isomers), hydration of ring systems (including saturation or partial unsaturation of monocyclic, bicyclic or polycyclic ring structures) and all other variations where allowed by available valences which result in a stable compound.
  • each functionality appearing at any location within the disclosed compound may be independently selected, and as appropriate, independently and/or optionally substituted.
  • the terms "independently selected,” or “each selected” refer to functional variables in a substituent list that may occur more than once on the structure of Formula (I), the pattern of substitution at each occurrence is independent of the pattern at any other occurrence.
  • a generic substituent variable on any formula or structure for a compound described herein is understood to include the replacement of the generic substituent with species substituents that are included within the particular genus, e.g., aryl may be replaced with phenyl or naphthalenyl and the like, and that the resulting compound is to be included within the scope of the compounds described herein.
  • each instance of or “in each instance, when present,” when used preceding a phrase such as "...C 3 _i 4 cycloalkyl, C 3 -i 4 cycloalkyl-Ci- 4 alkyl, aryl, aryl-Ci- 4 alkyl, heteroaryl, heteroaryl-Ci- 4 alkyl, heterocyclyl and heterocyclyl-Ci- 4 alkyl,” are intended to refer to the C 3 _i 4 cycloalkyl, aryl, heteroaryl and heterocyclyl ring systems when each are present either alone or as a substituent.

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CN201880050893.7A CN111065626B (zh) 2017-06-05 2018-06-05 用于治疗亨廷顿氏舞蹈病的化合物
MX2019014514A MX2019014514A (es) 2017-06-05 2018-06-05 Compuestos para tratar la enfermedad de huntington.
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EP18813494.4A EP3634953B1 (en) 2017-06-05 2018-06-05 Compounds for treating huntington's disease
AU2018282154A AU2018282154B2 (en) 2017-06-05 2018-06-05 Compounds for treating huntington's disease
EA201992878A EA201992878A1 (ru) 2017-06-05 2018-06-05 Соединения для лечения болезни хантингтона
BR112019025740-3A BR112019025740A2 (pt) 2017-06-05 2018-06-05 Compostos para tratar a doença de huntington
SG11201911615WA SG11201911615WA (en) 2017-06-05 2018-06-05 Compounds for treating huntington's disease
JP2020516795A JP7376471B2 (ja) 2017-06-05 2018-06-05 ハンチントン病を処置するための化合物
CA3066224A CA3066224A1 (en) 2017-06-05 2018-06-05 Compounds for treating huntington's disease
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IL271046A IL271046B2 (en) 2017-06-05 2019-11-28 Compounds for the treatment of Huntington's disease
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US17/723,163 US12384789B2 (en) 2017-06-05 2022-04-18 Compounds for treating Huntington's disease
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EP4151627A1 (en) 2023-03-22
SG11201911615WA (en) 2020-01-30
JP7376471B2 (ja) 2023-11-08
US20220251098A1 (en) 2022-08-11
US20200165256A1 (en) 2020-05-28
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