WO2012170377A1 - Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides - Google Patents
Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides Download PDFInfo
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- WO2012170377A1 WO2012170377A1 PCT/US2012/040833 US2012040833W WO2012170377A1 WO 2012170377 A1 WO2012170377 A1 WO 2012170377A1 US 2012040833 W US2012040833 W US 2012040833W WO 2012170377 A1 WO2012170377 A1 WO 2012170377A1
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- 0 *C(c(c(O)c1)ncc1C1=CC=CC=CC=CC1)=O Chemical compound *C(c(c(O)c1)ncc1C1=CC=CC=CC=CC1)=O 0.000 description 8
- KJMXIBVVWXYTBY-UHFFFAOYSA-N C/C=[I]\[n]1c(ccnc2)c2nc1 Chemical compound C/C=[I]\[n]1c(ccnc2)c2nc1 KJMXIBVVWXYTBY-UHFFFAOYSA-N 0.000 description 1
- GCSJNAUXPIBIOV-UHFFFAOYSA-N CC(C)(C)OC(Nc1cc(-c2cnc(C(NCC(N)=O)=O)c(O)c2)ccc1)=O Chemical compound CC(C)(C)OC(Nc1cc(-c2cnc(C(NCC(N)=O)=O)c(O)c2)ccc1)=O GCSJNAUXPIBIOV-UHFFFAOYSA-N 0.000 description 1
- VRZWCYZJGUYTKU-UHFFFAOYSA-N C[n]1c(ncnc2)c2nc1 Chemical compound C[n]1c(ncnc2)c2nc1 VRZWCYZJGUYTKU-UHFFFAOYSA-N 0.000 description 1
- FZESPVBONPPRAW-UHFFFAOYSA-N Cc([nH]1)nc2c1nccc2 Chemical compound Cc([nH]1)nc2c1nccc2 FZESPVBONPPRAW-UHFFFAOYSA-N 0.000 description 1
- UZQYFLWZKIMYKS-UHFFFAOYSA-N Cc([nH]1)nc2c1ncnc2 Chemical compound Cc([nH]1)nc2c1ncnc2 UZQYFLWZKIMYKS-UHFFFAOYSA-N 0.000 description 1
- IANINCNCSTYFSO-UHFFFAOYSA-N Cc(cc1)nc2c1nc[nH]2 Chemical compound Cc(cc1)nc2c1nc[nH]2 IANINCNCSTYFSO-UHFFFAOYSA-N 0.000 description 1
- QQAWUJGGLJMVCD-UHFFFAOYSA-N Cc(nc1)cc2c1nc[nH]2 Chemical compound Cc(nc1)cc2c1nc[nH]2 QQAWUJGGLJMVCD-UHFFFAOYSA-N 0.000 description 1
- SYMHUEFSSMBHJA-UHFFFAOYSA-N Cc1c2nc[nH]c2ncn1 Chemical compound Cc1c2nc[nH]c2ncn1 SYMHUEFSSMBHJA-UHFFFAOYSA-N 0.000 description 1
- JWQVOMJORQXNME-UHFFFAOYSA-N Cc1nc(cncc2)c2[nH]1 Chemical compound Cc1nc(cncc2)c2[nH]1 JWQVOMJORQXNME-UHFFFAOYSA-N 0.000 description 1
- AZLBZANRIPJPKQ-UHFFFAOYSA-N Ic1nccc2c1nc[nH]2 Chemical compound Ic1nccc2c1nc[nH]2 AZLBZANRIPJPKQ-UHFFFAOYSA-N 0.000 description 1
- DLWBYNLQVPGEOR-UHFFFAOYSA-N OB(c1ccccc1)[O]1CC1 Chemical compound OB(c1ccccc1)[O]1CC1 DLWBYNLQVPGEOR-UHFFFAOYSA-N 0.000 description 1
- GAMYYCRTACQSBR-UHFFFAOYSA-N c1nc2cccnc2[nH]1 Chemical compound c1nc2cccnc2[nH]1 GAMYYCRTACQSBR-UHFFFAOYSA-N 0.000 description 1
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- 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
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/02—Ophthalmic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/81—Amides; Imides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/82—Metals of the platinum group
- B01J2531/824—Palladium
Definitions
- Figure 1 depicts an outline of one embodiment for preparing the disclosed prolyl hydroxylase inhibitors.
- Figure 2 depicts an outline of one embodiment for preparing the disclosed prolyl hydroxylase inhibitor ester prodrugs.
- Figure 3 depicts an outline of one embodiment for preparing the disclosed prolyl hydroxylase inhibitor amide prodrugs.
- pharmaceutically acceptable is meant a material that is not biologically or otherwise undesirable, i.e., the material can be administered to an individual along with the relevant active compound without causing clinically unacceptable biological effects or interacting in a deleterious manner with any of the other components of the pharmaceutical composition in which it is contained.
- a weight percent of a component is based on the total weight of the formulation or composition in which the component is included.
- Admixture or “blend” is generally used herein means a physical combination of two or more different components.
- hydrocarbyl stands for any carbon atom-based unit (organic molecule), said units optionally containing one or more organic functional group, including inorganic atom comprising salts, inter alia, carboxylate salts, quaternary ammonium salts.
- organic hydrocarbyl Within the broad meaning of the term “hydrocarbyl” are the classes “acyclic hydrocarbyl” and “cyclic hydrocarbyl” which terms are used to divide hydrocarbyl units into cyclic and non-cyclic classes.
- cyclic hydrocarbyl units can comprise only carbon atoms in the ring (i.e., carbocyclic and aryl rings) or these units can comprise one or more heteroatoms in the ring (i.e., heterocyclic and heteroaryl rings).
- Carbocyclic rings the lowest number of carbon atoms in a ring is 3 carbon atoms;
- cyclopropyl For "aryl” rings the lowest number of carbon atoms in a ring are 6 carbon atoms; phenyl. For “heterocyclic” rings the lowest number of carbon atoms in a ring is 1 carbon atom; diazirinyl, a Ci heterocyclic ring. Ethylene oxide comprises 2 carbon atoms and is a C 2 heterocyclic ring. For “heteroaryl” rings the lowest number of carbon atoms in a ring is 1 carbon atom; 1,2,3,4-tetrazolyl, a Ci heteroaryl ring.
- heterocycle and “heterocyclic ring” can also include “heteroaryl rings.”
- heteroaryl rings The following is a non-limiting description of the units encompassed by the terms “acyclic hydrocarbyl” and “cyclic hydrocarbyl” as used herein.
- substituted and unsubstituted acyclic hydrocarbyl encompasses 3 categories of units:
- linear or branched alkyl non-limiting examples of which include, methyl (Ci), ethyl (C 2 ), n-propyl (C 3 ), z ' so-propyl (C 3 ), n-butyl (C 4 ), sec-butyl (C 4 ), z ' so-butyl (C 4 ), tert- butyl (C 4 ), and the like; substituted linear or branched alkyl, non-limiting examples of which includes, hydroxymethyl (Ci), chloromethyl (Ci), trifluoromethyl (Ci), aminomethyl (Ci), 1-chloroethyl (C 2 ), 2 -hydroxy ethyl (C 2 ), 1,2-difluoroethyl (C 2 ), 3-carboxypropyl (C 3 ), and the like.
- linear or branched alkenyl non-limiting examples of which include, ethenyl (C 2 ), 3- propenyl (C 3 ), 1-propenyl (also 2-methylethenyl) (C 3 ), isopropenyl (also 2- methylethen-2-yl) (C3), buten-4-yl (C 4 ), and the like; substituted linear or branched alkenyl, non-limiting examples of which include, 2-chloroethenyl (also 2- chlorovinyl) (C 2 ), 4-hydroxybuten-l-yl (C 4 ), 7-hydroxy-7-methyloct-4-en-2-yl (C 9 ), 7-hydroxy-7-methyloct-3,5-dien-2-yl (C 9 ), and the like.
- substituted linear or branched alkenyl non-limiting examples of which include, 2-chloroethenyl (also 2- chlorovinyl) (C 2 ), 4-hydroxybuten-l-y
- linear or branched alkynyl non-limiting examples of which include, ethynyl (C 2 ), prop-2-ynyl (also propargyl) (C 3 ), propyn-l-yl (C 3 ), and 2-methyl-hex-4-yn-l-yl (C 7 ); substituted linear or branched alkynyl, non-limiting examples of which include, 5-hydroxy-5-methylhex-3-ynyl (C 7 ), 6-hydroxy-6-methylhept-3-yn-2-yl (Cs), 5-hydroxy-5-ethylhept-3-ynyl (C 9 ), and the like.
- substituted and unsubstituted cyclic hydrocarbyl encompasses 5 categories of units:
- carrier is defined herein as "encompassing rings comprising from 3 to 20 carbon atoms, in one embodiment from 3 to 10 carbon atoms, in another embodiment from 3 to 7 carbon atoms, in a still further embodiment 5 or 6 carbon atoms, wherein the atoms which comprise said rings are limited to carbon atoms, and further each ring can be independently substituted with one or more moieties capable of replacing one or more hydrogen atoms.”
- substituted and unsubstituted carbocyclic rings which encompass the following categories of units:
- carbocyclic rings having a single substituted or unsubstituted hydrocarbon ring non-limiting examples of which include, cyclopropyl (C 3 ), 2-methyl- cyclopropyl (C 3 ), cyclopropenyl (C 3 ), cyclobutyl (C 4 ), 2,3-dihydroxycyclobutyl (C 4 ), cyclobutenyl (C 4 ), cyclopentyl (C5), cyclopentenyl (C5), cyclopentadienyl (C5), cyclohexyl (Ce), cyclohexenyl (Ce), cycloheptyl (C 7 ), cyclooctanyl (C 8 ), 2,5- dimethylcyclopentyl (C5), 3,5-dichlorocyclohexyl (Ce), 4-hydroxycyclohexyl (Ce), and 3,3,5-trimethylcyclohex- l-yl (Ce).
- carbocyclic rings having two or more substituted or unsubstituted fused hydrocarbon rings non-limiting examples of which include, octahydropentalenyl (C 8 ), octahydro- lH-indenyl (C 9 ), 3a,4,5,6,7,7a-hexahydro-3H-inden-4-yl (C 9 ), decahydroazulenyl (C 10 ).
- bicyclo[2.2.1]heptanyl bicyclo[3.1.1 ]heptanyl, l,3-dimethyl[2.2.1 ]heptan-2-yl, bicyclo[2.2.2]octanyl, and bicyclo[3.3.3]undecanyl.
- aryl is defined herein as "units encompassing at least one phenyl or naphthyl ring and wherein there are no heteroaryl or heterocyclic rings fused to the phenyl or naphthyl ring and further each ring can be independently substituted with one or more moieties capable of replacing one or more hydrogen atoms.”
- substituted and unsubstituted aryl rings which encompass the following categories of units:
- C 6 or Cio substituted or unsubstituted aryl rings phenyl and naphthyl rings whether substituted or unsubstituted, non-limiting examples of which include, phenyl (Ce), naphthylen- l-yl (Cio), naphthylen-2-yl (Cio), 4-fluorophenyl (Ce), 2- hydroxyphenyl (Ce), 3-methylphenyl (Ce), 2-amino-4-fluorophenyl (Ce), 2-(N,N- diethylamino)phenyl (C 6 ), 2-cyanophenyl (C 6 ), 2,6-di-tert-butylphenyl (C 6 ), 3- methoxyphenyl (Ce), 8-hydroxynaphthylen-2-yl (Cio), 4,5-dimethoxynaphthylen-l- yl (Cio), and 6-cyano-nap
- heterocyclic and/or “heterocycle” are defined herein as "units comprising one or more rings having from 3 to 20 atoms wherein at least one atom in at least one ring is a heteroatom chosen from nitrogen (N), oxygen (O), or sulfur (S), or mixtures of N, O, and S, and wherein further the ring which contains the heteroatom is also not an aromatic ring.”
- N nitrogen
- O oxygen
- S sulfur
- Substituted and unsubstituted heterocyclic rings which encompass the following categories of units:
- heterocyclic units having a single ring containing one or more heteroatoms, non-limiting examples of which include, diazirinyl (Ci), aziridinyl (C2), urazolyl (C2), azetidinyl (C 3 ), pyrazolidinyl (C 3 ), imidazolidinyl (C 3 ), oxazolidinyl (C 3 ), isoxazolinyl (C 3 ), thiazolidinyl (C 3 ), isothiazolinyl (C 3 ), oxathiazolidinonyl (C 3 ), oxazolidinonyl (C 3 ), hydantoinyl (C 3 ), tetrahydrofuranyl (C 4 ), pyrrolidinyl (C 4 ), morpholinyl (C 4 ), piperazinyl (C 4 ), piperidinyl (C 4 ), dihydropyranyl (C5)
- heteroaryl is defined herein as "encompassing one or more rings comprising from 5 to 20 atoms wherein at least one atom in at least one ring is a heteroatom chosen from nitrogen (N), oxygen (O), or sulfur (S), or mixtures of N, O, and S, and wherein further at least one of the rings which comprises a heteroatom is an aromatic ring.”
- Heteroaryl rings can comprise from 1 to 19 carbon atoms, in another embodiment heteroaryl rings can comprise from 1 to 9 carbon atoms.
- substituted and unsubstituted heterocyclic rings which encompass the following categories of units:
- heteroaryl rings containing a single ring non-limiting examples of which include, 1,2,3,4-tetrazolyl (CO, [l,2,3]triazolyl (C 2 ), [l,2,4]triazolyl (C 2 ), triazinyl (C 3 ), thiazolyl (C 3 ), IH-imidazolyl (C 3 ), oxazolyl (C 3 ), isoxazolyl (C 3 ), isothiazolyl (C 3 ), furanyl (C 4 ), thiophenyl (C 4 ), pyrimidinyl (C 4 ), 2-phenylpyrimidinyl (C 4 ), pyridinyl (C5), 3-methylpyridinyl (C5), and 4-dimethylaminopyridinyl (C5) ii) heteroaryl rings containing 2 or more fused rings one of which is a heteroaryl ring, non-limiting examples of which include: 7H-purinyl (
- Ci-Ce tethered cyclic hydrocarbyl units (whether carbocyclic units, Ce or C 10 aryl units, heterocyclic units, or heteroaryl units) which connected to another moiety, unit, or core of the molecule by way of a Ci-Ce alkylene unit.
- tethered cyclic hydrocarbyl units include benzyl Ci-(C 6 ) having the formula:
- R a is optionally one or more independently chosen substitutions for hydrogen.
- R a is optionally one or more independently chosen substitutions for hydrogen.
- Further examples include other aryl units, inter alia, (2- hydroxyphenyl)hexyl C6-(Ce); naphthalen-2-ylmethyl Ci-(Cio), 4-fluorobenzyl Ci- (C 6 ), 2-(3-hydroxyphenyl)ethyl C 2 -(Ce), as well as substituted and unsubstituted C 3 - C1 0 alkylenecarbocyclic units, for example, cyclopropylmethyl Ci-(C 3 ),
- cyclopentylethyl C 2 -(Cs), cyclohexylmethyl C ⁇ -(C£); Included within this category are substituted and unsubstituted C1-C1 0 alkylene-heteroaryl units, for example a 2- picolyl Ci-(C 6 ) unit having the formula:
- C1-C12 tethered cyclic hydrocarbyl units include C1-C1 0 alkyleneheterocyclic units and alkylene-heteroaryl units, non-limiting examples of which include, aziridinylmethyl Ci-(C2) and oxazol- 2-ylmethyl d-(C 3 ).
- carbocyclic rings are from C3 to C2 0 ; aryl rings are Ce or Cio; heterocyclic rings are from Ci to C9; and heteroaryl rings are from Ci to C 9 .
- fused ring units as well as spirocyclic rings, bicyclic rings and the like, which comprise a single heteroatom will be characterized and referred to herein as being encompassed by the cyclic family corresponding to the heteroatom containing ring, although the artisan may have alternative characterizations.
- 1,2,3,4- tetrahydroquinoline having the formula:
- heteroaryl unit is, for the purposes of the present disclosure, is defined as a heteroaryl unit.
- a fused ring unit contains heteroatoms in both a non-aromatic ring (heterocyclic ring) and an aryl ring (heteroaryl ring)
- the aryl ring will predominate and determine the type of category to which the ring is assigned herein for the purposes of describing the invention.
- l,2,3,4-tetrahydro-[l,8]naphthpyridine having the formula:
- substituted is used throughout the specification.
- substituted unit or moiety is a hydrocarbyl unit or moiety, whether acyclic or cyclic, which has one or more hydrogen atoms replaced by a substituent or several substituents as defined herein below.”
- the units, when substituting for hydrogen atoms are capable of replacing one hydrogen atom, two hydrogen atoms, or three hydrogen atoms of a hydrocarbyl moiety at a time.
- these substituents can replace two hydrogen atoms on two adjacent carbons to form said substituent, new moiety, or unit.
- a substituted unit that requires a single hydrogen atom replacement includes halogen, hydroxyl, and the like.
- a two hydrogen atom replacement includes carbonyl, oximino, and the like.
- a two hydrogen atom replacement from adjacent carbon atoms includes epoxy, and the like.
- Three hydrogen replacement includes cyano, and the like.
- substituted is used throughout the present specification to indicate that a hydrocarbyl moiety, inter alia, aromatic ring, alkyl chain; can have one or more of the hydrogen atoms replaced by a substituent. When a moiety is described as "substituted" any number of the hydrogen atoms may be replaced.
- 4-hydroxyphenyl is a "substituted aromatic carbocyclic ring (aryl ring)"
- ( ,N-dimethyl-5-amino)octanyl is a " substituted Cs linear alkyl unit
- 3-guanidinopropyl is a "substituted C 3 linear alkyl unit”
- 2-carboxypyridinyl is a "substituted heteroaryl unit.”
- substituted or unsubstituted Ce or C10 aryl for example, phenyl, naphthyl (also referred to herein as naphthylen- 1 -yl (C 10 ) or naphthylen-2-yl (C 10 )); iii) substituted or unsubstituted C7 or Cn alkylenearyl; for example, benzyl, 2- phenylethyl, naphthylen-2-ylmethyl;
- -(CR 102a R 102b ) a OR 101 for example, -OH, -CH 2 OH, -OCH 3 , -CH 2 OCH 3 , -OCH 2 CH 3 , -CH 2 OCH 2 CH 3 , -OCH 2 CH 2 CH 3 , and -CH 2 OCH 2 CH 2 CH 3 ;
- -(CR 102a R 102b ) a C(O)R 101 for example, -COCH3, -CH 2 COCH 3 ,
- each R 101 is independently hydrogen, substituted or unsubstituted C 1-C6 linear, C 3 - C 6 branched, or C 3 -C6 cyclic alkyl, phenyl, benzyl, heterocyclic, or heteroaryl; or two R 101 units can be taken together to form a ring comprising 3-7 atoms;
- R 102a and 102b are each independently hydrogen or C1-C4 linear or C 3 -C 4 branched alkyl; the index "a" is from 0 to 4.
- substitutions for hydrogen defined herein above for example, substituted Ci-Ci 2 linear, C 3 -Ci 2 branched, or C 3 -Ci 2 cyclic alkyl, alkenyl, and alkynyl, substituted Ce or C10 aryl, substituted C 7 or Cn alkylenearyl, substituted C1-C9 heterocyclic rings, substituted Ci- C9 heteroaryl rings, and R 101 , can be optionally substituted by one or more of the following substitutions for hydrogen:
- each R 201 is independently hydrogen, C1-C6 linear, C 3 -C6 branched, or C 3 -C6 cyclic alkyl, phenyl, benzyl, heterocyclic, or heteroaryl; or two R 201 units can be taken together to form a ring comprising 3-7 atoms; 202a and R 202b are each independently hydrogen or Ci- C 4 linear or C 3 -C 4 branched alkyl; the index "b" is from 0 to 4.
- composition of matter stand equally well for each other and are used interchangeably throughout the specification.
- the disclosed compounds include all enantiomeric forms, diastereomeric forms, salts, and the like.
- the compounds disclosed herein include all salt forms, for example, salts of both basic groups, inter alia, amines, as well as salts of acidic groups, inter alia, carboxylic acids.
- anions that can form salts with protonated basic groups: chloride, bromide, iodide, sulfate, bisulfate, carbonate, bicarbonate, phosphate, formate, acetate, propionate, butyrate, pyruvate, lactate, oxalate, malonate, maleate, succinate, tartrate, fumarate, citrate, and the like.
- cations that can form salts of acidic groups: ammonium, sodium, lithium, potassium, calcium, magnesium, bismuth, lysine, tromethamine, meglumine and the like.
- L is a linking group defined herein, have been found to exhibit prolyl hydroxylase inhibition (antagonism). Compounds of this formula have also been found to stabilize hypoxia inducible factor-2 alpha (HIF-2a). It has also been found that esters and amides having the formula:
- esters and amides are referred to herein as "prodrugs.”
- R units have the formula:
- X is chosen from:
- R 3 is C1-C12 linear, C3-C12 branched or C3-C12 cyclic alkyl; C2-C12 linear, C3-C12 branched or C 3 -C12 cyclic alkenyl; or C2-C12 linear, C 3 -C12 branched or C 3 -C12 cyclic alkynyl, or benzyl.
- R 4 and R 5 are each independently hydrogen, C1-C12 linear, C 3 -C12 branched or C 3 - C12 cyclic alkyl; C2-C12 linear, C3-C12 branched or C3-C12 cyclic alkenyl; or C2-C12 linear, C 3 -C12 branched or C 3 -C12 cyclic alkynyl; benzyl; or R 4 and R 5 can be taken together with the nitrogen atom to form a 3 to 10 member ring, wherein the ring can optionally contain one or more heteroatoms chosen from oxygen (O), nitrogen (N), or sulfur (S).
- M 1 represents a cation as further described herein below.
- Non-limiting examples of this embodiment includes compounds having the formula:
- X is hydroxyl, -OH.
- X is -OR 3 .
- R 3 is Ci-Ce linear alkyl, for example, methyl (Ci), ethyl (C 2 ), n-propyl (C 3 ), n-butyl (C 4 ), n-pentyl (C5), and n-hexyl (Ce).
- Non-limiting examples include the methyl ester, the ethyl ester, the n-propyl ester, and the like.
- R 3 is C3-C6 branched alkyl non-limiting examples of which include z ' so-propyl (C 3 ), sec-butyl (C 4 ), iso-butyl (C 4 ), tert-butyl (C 4 ), 1 -methylbutyl (C 5 ), 2-methylbutyl (C 5 ), 3-methylbutyl (C 5 ), and 4- methylpentyl (Ce).
- a further embodiment of this aspect relates to X units wherein R 3 is C3-C6 cyclic alkyl, for example, cyclopropyl (C 3 ), cyclobutyl (C 4 ), cyclopentyl (C5), and cyclohexyl (Ce).
- R 3 is C3-C6 cyclic alkyl, for example, cyclopropyl (C 3 ), cyclobutyl (C 4 ), cyclopentyl (C5), and cyclohexyl (Ce).
- X is -NR 4 R 5 .
- One embodiment of this aspect relates to X units wherein R 4 and R 5 are both hydrogen; -NH 2 .
- a further embodiment of this aspect relates to X units wherein R 4 and R 5 are independently chosen from hydrogen, C 1 -C 4 linear alkyl, C3-C4 branched alkyl, or C3-C4 cyclic alkyl, for example, methyl (Ci), ethyl (C 2 ), n-propyl (C 3 ), iso-propyl (C 3 ), n-butyl (C 4 ), sec-butyl (C 4 ), z ' so-butyl (C 4 ), and tert-butyl (C 4 ).
- R 4 and R 5 are independently chosen from hydrogen, C 1 -C 4 linear alkyl, C3-C4 branched alkyl, or C3-C4 cyclic alkyl, for example, methyl (Ci), ethyl (C 2 ), n-propyl (C 3 ), iso-propyl (C 3 ), n-butyl (C 4 ), sec-but
- Non-limiting examples of this embodiment include -NH 2 , -NHCH 3 , -N(CH 3 ) 2 , -NHC 2 H 5 , -N(C 2 H 5 ) 2 , and - N(CH 3 )(C 2 H 5 ).
- L is a linking unit having the formula -(CR 7a R 7b ) n - wherein R 7a and R 7b can be independently chosen from hydrogen, Ci-Ce linear, C3-C6 branched or C3-C6 cyclic alkyl.
- the index n is an integer from 1 to 4.
- R 7a and R 7b are both hydrogen and the index n is an integer from 1 to 4, i.e., -CH 2 - (methylene), -CH 2 CH 2 - (ethylene), -CH 2 CH 2 CH 2 - (propylene), and -CH 2 CH 2 CH 2 CH 2 - (butylene).
- n is an integer from 1 to 4, i.e., -CH 2 - (methylene), -CH 2 CH 2 - (ethylene), -CH 2 CH 2 CH 2 - (propylene), and -CH 2 CH 2 CH 2 CH 2 - (butylene).
- a further aspect of L units relates to L units wherein R 7a and R 7b are independently chosen from hydrogen, methyl (Ci), ethyl (C 2 ), n-propyl (C 3 ), and z ' so-propyl (C 3 ) and the index n is an integer from 1 to 4.
- R 7a is hydrogen and R 7b is chosen from methyl (CO, ethyl (C 2 ), n-propyl (C 3 ), and iso- propyl (C 3 ), and the index n is an integer from 1 or 3.
- Non-limiting examples of this embodiment includes -CH(CH 3 )-, -CH 2 CH(CH 3 )-, -CH(CH 3 )CH 2 - -CH(CH 3 )CH 2 CH 2 -, -CH 2 CH(CH 3 )CH 2 - and -CH 2 CH 2 CH(CH 3 )-.
- L units relate to L units wherein R 7a and R 7b are
- n is an integer from 1 to 4.
- a non-limiting example of this aspect has the formula -C(CH 3 ) 2 -.
- L units can be derived from the reaction of an amino acid with a 5-aryl or 5-heteroaryl-3-hydroxy-2-carboxypyridine as described herein below in the disclosure of process step D.
- R 7b is hydrogen and R 7a is chosen from hydrogen, methyl, z ' sopropyl, iso- butyl, sec-butyl, hydroxymethyl, 1 -hydroxy ethyl, thiomethyl, 2-(methylthio)ethyl, benzyl, (4-hydroxyphenyl)methyl, indol-3-ylmethyl, imidazol-4-ylmethyl, 3-gunidinylpropyl, 4- aminobutyl, carboxymethyl, 2-carboxyethyl, acetamide, or R 8 and R 7a can be taken together to form a pyrrolidinyl ring, for example, when proline is reacted with the 5-aryl or 5- heteroaryl
- n can be any integer from 1 to 4, for example n can equal 1, n can equal 2, n can equal 3, and n can equal 4.
- R 8 is hydrogen, methyl (CO or ethyl (C 2 ). In one aspect R 8 is hydrogen. In a further aspect R 8 is methyl (CO- In another aspect R 8 is ethyl (C 2 ).
- R 1 units are chosen from:
- substitutions for a hydrogen atom on R 1 units, or alternatively an R 10 unit when R 1 is represented by an A ring include:
- -(CR 102a R 102b ) a OR 101 for example, -OH, -CH 2 OH, -OCH 3 , -CH 2 OCH 3 , -OCH2CH3, -CH2OCH2CH3, -OCH2CH2CH3, and -CH2OCH2CH2CH3; vii) -(CR 102a R 102b ) a C(O)R 101 ; for example, -COCH 3 , -CH 2 COCH 3 ,
- two substitutions for hydrogen can be taken together to form a substituted or unsubstituted C 2 -Cs heterocyclic ring, wherein the ring substitution can be one or more of the substitutions defined in (i) to (xix) herein above and the ring can comprise one or more heteroatoms chosen from oxygen (O) sulfur (S), or nitrogen (N);
- each R 101 is independently hydrogen, substituted or unsubstituted Ci-Ce linear, C 3 - Ce branched, or C 3 -C6 cyclic alkyl, phenyl, benzyl, heterocyclic, or heteroaryl; or two R 101 units can be taken together to form a ring comprising 3-7 atoms; 102a and R 102b are each independently hydrogen or C1-C4 linear or C 3 -C 4 branched alkyl; the index "a" is from 0 to 4.
- a ring represents R 1 units wherein R 1 can be:
- R 1 relates to substituted or unsubstituted Ce aryl, i.e., substituted or unsubstituted phenyl.
- a first embodiment of this aspect relates to R 1 equal to phenyl, for example, compounds having the formula:
- R 1 A further aspect of R 1 relates to R 1 units that are substituted phenyl having the formula:
- R represents from 1 to 5 independently chosen substitutions for hydrogen; or two R 10 units can be taken together to form a substituted or unsubstituted C4-C8 cycloalkyl ring, a substituted or unsubstituted Ce aryl ring (phenyl), a substituted or unsubstituted C2-C8 heterocyclic ring, or a substituted or unsubstituted C3 to C5 heteroaryl ring, wherein the heterocyclic and heteroaryl rings comprise one or more hetero atoms independently chosen from oxygen (O), nitrogen (N), or sulfur (S).
- R 1 units relates to compounds comprising substitutions on R 1 of one or more units independently chosen from:
- halogen -F, -CI, -Br, and -I.
- R 1 units 2- fluorophenyl, 3 -fluorophenyl, 4-fluorophenyl, 2,3-difluorophenyl, 3,4-difluorophenyl, 3,5- difluorophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2,3-dichlorophenyl, 3,4- dichlorophenyl, 2-bromophenyl, 3-bromophenyl, 4-bromophenyl, 3,5-dichlorophenyl,
- a further iteration relates to compounds comprising one or more R units that are C1-C4 linear, C3-C4 branched or C3-C4 cyclic alkyl, thereby forming the following non- limiting examples of R 1 units: 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, 2,3- dimethylphenyl, 2,4-dimethylphenyl, 2,5-dimethylphenyl, 2,6-dimethylphenyl, 3,4- dimethylphenyl, 2,3,4-trimethylphenyl, 2,3,5-trimethylphenyl, 2,3,6-trimethylphenyl, 2,4,5- trimethylphenyl, 2,4,6-trimethylphenyl, 2-ethylphenyl, 3-ethylphenyl, 4-ethylphenyl, 2,3- diethylphenyl, 2,4-diethylphenyl, 2,5-diethylphenyl, 2,6-diethylphenyl, 3,4-diethy
- Another iteration relates to compounds comprising one or more R 10 units that are
- R 1 units 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2,3- dimethoxyphenyl, 2,4-dimethoxyphenyl, 2,5-dimethoxyphenyl, 2,6-dimethoxyphenyl, 3,4- dimethoxyphenyl, 2,3,4-trimethoxyphenyl, 2,3,5-trimethoxyphenyl, 2,3,6- trimethoxyphenyl, 2,4,5 -trimethoxyphenyl, 2,4,6-trimethoxyphenyl, 2-ethoxyphenyl, 3- ethoxyphenyl, 4-ethoxyphenyl, 2,3-diethoxyphenyl, 2,4-diethoxyphenyl, 2,5- diethoxyphenyl, 2,6-diethoxyphenyl, 3,4-diethoxyphen
- a yet still further iteration relates to compounds comprising one or more R 10 units that comprise at least one of each substitution chosen from C1-C4 linear or halogen, thereby forming the following non-limiting examples of R 1 units: 2-chloro-3-methylphenyl, 2- chloro-4-methylphenyl, 2-chloro-5-methylphenyl, 2-chloro-6-methylphenyl, 3-chloro-2- methylphenyl, 3-chloro-4-methylphenyl, 3-chloro-5-methylphenyl, 3-chloro-6-methyl- phenyl, 2-fluoro-3-methylphenyl, 2-fluoro-4-methylphenyl, 2-fluoro-5-methylphenyl, 2- fluoro-6-methylphenyl, 3-fluoro-2-methylphenyl, 3-fluoro-4-methylphenyl, 3-fluoro-5- methylphenyl, and 3-fluoro-6-methylphenyl.
- R 1 units relates to compounds comprising one or more R 10 units independently chosen from:
- R 1 units that are -(CH2) a C , wherein the index a is 0 or 1 , thereby forming the following non- limiting examples of R 1 units: 2-cyanophenyl, 3-cyanophenyl, 4-cyanophenyl, 2- (cyanomethyl)phenyl, 3-(cyanomethyl)phenyl, 4-(cyanomethyl)phenyl, 2,3-dicyanophenyl, 3,4-dicyanophenyl, and 3,5-dicyanophenyl.
- R 10 units that are -(CH 2 ) a N0 2 , wherein the index a is 0 or 1, thereby forming the following non-limiting examples of R 1 units: 2-nitrophenyl, 3-nitrophenyl, 4-nitrophenyl, 2- (nitromethyl)phenyl, 3-(nitromethyl)phenyl, 4-(nitromethyl)phenyl, 2,3-dinitrophenyl, 3,4- dinitrophenyl, and 3,5-dinitrophenyl.
- R 1 units that are -(CR 102a R 102b ) a N(R 101 ) 2 , wherein the index a is 0 or 1, thereby forming the following non-limiting examples of R 1 units: 2-aminophenyl, 3-aminophenyl, 4- aminophenyl, 2,3-diaminophenyl, 3,4-diaminophenyl, 3,5-diaminophenyl, 2- methylaminophenyl, 3-methylaminophenyl, 4-methylaminophenyl, 2,3- (dimethylamino)phenyl, 3,4-(dimethylamino)phenyl, 3,5-(dimethylamino)phenyl, 2,3,4- triaminophenyl, 2,3,5-triaminophenyl, 2,3,6-triaminophenyl, 2,4,5-triaminophenyl, 2,4,6- triaminophen
- R 10 units that are -(CR 102a R 102b ) a C(O)N(R 101 ) 2 , wherein R 101 is chosen from hydrogen, d- Ce linear, C3-C6 branched alkyl or C3-C6 cyclic alkyl, and the index a is 0 or 1 , thereby forming the following non- limiting examples of R 1 units: -C(0)NH 2 , -C(0)NHCH 3 , -CH 2 C(0)NHCH 3 , -C(0)N(CH 3 ) 2 , -CH 2 C(0)N(CH 3 ) 2 , -C(0)NHCH 2 CH 3 ,
- R 10 units that are -(CR 102a R 102b ) a C(O)N(R 101 ) 2 , wherein two R 101 units are taken together to form a ring having from 3 to 7 atoms and the index a is 0 or 1, thereby forming R 1 units having, for example, the formulae:
- R 10 units that are -(CR 102a R 102b ) a N(R 101 )C(O) 2 R 101 ; wherein R 101 is chosen from hydrogen, C1-C6 linear, C 3 -C6 branched alkyl or C 3 -C6 cyclic alkyl, and the index a is 0 or 1 , thereby forming the following non-limiting examples of R 1 units: -NHC(0)CH 3 ,
- R 1 relates to R 1 units that are substituted or unsubstituted Ci- heteroaryl.
- R 1 equal to C 1 -C9 heteroaryl, for example, compounds having the formula:
- ring A represent a C 1 -C9 heteroaryl unit non-limiting examples of which include: 1,2,3,4-tetrazolyl (CO, [l,2,3]triazolyl (C 2 ), [l,2,4]triazolyl (C 2 ), [l,2,4]oxadiazolyl (C 2 ), [l,3,4]oxadiazolyl (C 2 ), [l,2,4]thiadiazolyl (C 2 ), [l,3,4]thiadiazolyl (C 2 ), isothiazolyl (C 3 ), thiazolyl (C 3 ), imidazolyl (C 3 ), oxazolyl (C 3 ), isoxazolyl (C 3 ), pyrazolyl (C 3 ), pyrrolyl (C 4 ), furanyl (C 4 ), thiophenyl (C 4 ), triazinyl (C 3 ), pyrimidinyl (C 4 ), pyrazinyl (
- the C 1 -C9 heteroaryl unit can be bonded to the core pyridine ring at any suitable position, non-limiting examples of which include:
- R 1 units equal to substituted C1-C9 heteroaryl, for example, compounds having the formula:
- ring A represent a C 1 -C9 heteroaryl unit non-limiting examples of which include: 1,2,3 ,4-tetrazolyl (CO, [l,2,3]triazolyl (C 2 ), [l,2,4]triazolyl (C 2 ), [l,2,4]oxadiazolyl (C 2 ), [l,3,4]oxadiazolyl (C 2 ), [l,2,4]thiadiazolyl (C 2 ), [l,3,4]thiadiazolyl (C 2 ), isothiazolyl (C 3 ), thiazolyl (C 3 ), imidazolyl (C 3 ), oxazolyl (C 3 ), isoxazolyl (C 3 ), pyrazolyl (C 3 ), pyrrolyl (C 4 ), furanyl (C 4 ), thiophenyl (C 4 ), triazinyl (C 3 ), pyrimidinyl (C 4 ), pyraziny
- Non-limiting examples of substitutions for a hydrogen atom on R 1 C 1 -C 9 heteroaryl units include:
- -(CR 102a R 102b ) a OR 101 for example, -OH, -CH 2 OH, -OCH 3 , -CH 2 OCH 3 , -OCH 2 CH 3 , -CH 2 OCH 2 CH 3 , -OCH 2 CH 2 CH 3 , and -CH 2 OCH 2 CH 2 CH 3 ;
- -(CR 102a R 102b ) a C(O)R 101 for example, -COCH 3 , -CH 2 COCH 3 ,
- each R 101 is independently hydrogen, substituted or unsubstituted C 1 -C6 linear, C 3 - Ce branched, or C 3 -C6 cyclic alkyl, phenyl, benzyl, heterocyclic, or heteroaryl; or two R 101 units can be taken together to form a ring comprising 3-7 atoms; 102a and R 102b are each independently hydrogen or C 1 -C4 linear or C 3 -C 4 branched alkyl; the index "a" is from 0 to 4.
- Non-limiting examples of substituted C5-C9 R 1 heteroaryl units include 2- methylthiazol-4-yl, 2-ethylthiazol-4-yl, 2-(n-propyl)thiazol-4-yl, 2-(3 ⁇ 4o-propyl)thiazol-4-yl, 4,5-dimethylthiazol-2-yl, 4-ethyl-5-methylthiazol-2-yl, 4-methyl-5-ethylthiazol-2-yl, 4,5- diethylthiazol-2-yl, 3-methyl-l ,2,4-oxadiazol-5-yl, 4,5-dimethylimidazol-2-yl, 4-ethyl-5- methylimidazol-2-yl, 4-methyl-5-ethylimidazol-2-yl, 4,5-diethylimidazol-2-yl, 2,5- dimethylthiazol-4-yl, 2,4-dimethylthiazol-5-yl, 3 -methyl
- Non-limiting examples of substituted C 2 -C 4 5-member heteroaryl rings include:
- R 1 units relate to rings comprising two R 10 substitutions for hydrogen that are taken together to form a substituted or unsubstituted C2-C8 heterocyclic ring.
- One embodiment of this aspect relates to R 1 units wherein two R 10 units are taken together to form a substituted or unsubstituted C7-C9 heterocyclic R 1 ring system wherein the heterocyclic ring formed by the two R 10 substitutions contains one or more nitrogen atoms.
- No -limiting iterations of this embodiment include R 1 units having the formulae:
- R 1 units wherein two R 10 units are taken together to form a substituted or unsubstituted C7-C9 heterocyclic R 1 ring system wherein the heterocyclic ring formed by the two R 10 substitutions contains one or more oxygen atoms.
- Non-limiting iterations of this embodiment include R 1 units having the formulae:
- R 2 units are chosen from C1-C12 linear alkyl or C3-C12 branched alkyl. In one embodiment R 2 can represent hydrogen. In another embodiment, R 2 is C1-C4 linear alkyl. Non-limiting examples include methyl, ethyl and n-propyl. In one example, R 2 is methyl. R 2 units relate to the alkoxide unit having the formula:
- the alkoxide can be derived from any suitable source, i.e., sodium methoxide, lithium ethoxide, and the like which the formulator can choose.
- a further aspect of the present disclosure relates to a process for preparing intermediates having the formula:
- R x is the same as defined herein above.
- This aspect also includes salts of acids, for example, compounds having the formula:
- M is a salt forming cation and N represents the cationic charge on M and the number of corresponding anionic units of the disclosed intermediates.
- the M units can comprise in one embodiment inorganic cations, inter alia, ammonium, sodium, lithium, potassium, calcium, magnesium, bismuth, and the like.
- M units can comprise organic cation forming units, inter alia, lysine, ornithine, glycine, alanine, or other amino acids, basic organic compounds, inter alia, methylamine, dimethylamine, trimethylamine, and the like.
- W is a salt forming anion and Y represents the anionic charge on W and the number of corresponding number of the disclosed intermediates in this salt form.
- the W units can comprise in one embodiment inorganic anions, inter alia, chloride, bromide, iodide, sulfate, bisulfate, carbonate, bicarbonate, phosphate, and the like.
- W units can comprise organic anion forming units, inter alia, formate, acetate, propionate, butyrate, pyruvate, lactate, oxalate, malonate, maleate, succinate, tartrate, fumarate, citrate, and the like.
- the disclosed prolyl hydroxylase inhibitors can be isolated as a pharmaceutically acceptable salt having the formula:
- M is a salt forming cation and N represents the cationic charge on M and the number of corresponding anionic units present in the salt.
- One aspect of the disclosed salts relates to prolyl hydroxylase inhibitors in the of the mono-valent salt having the formula:
- M represents an inorganic or organic cation.
- monovalent cations include sodium, lithium, potassium, ammonium, silver, organic cations having the formula HN + R a R b R c wherein R a , R b and R c are each independently:
- R a , R b and R c can be independently substituted by one or more units chosen from:
- R a , R b and R c can contain one or more units capable of
- R a , R b and R c are hydrogen or C1-C12 linear alkyl.
- Non-limiting examples include methyl ammonium
- R a , R b and R c are chosen from hydrogen, unsubstituted Ci-Ci 2 linear, C 3 -Ci 2 branched, or C 3 - Ci 2 cyclic alkyl or substituted Ci-Ci 2 linear, C 3 -Ci 2 branched, or C 3 -Ci 2 cyclic alkyl.
- R a , R b and R c are chosen from hydrogen, unsubstituted Ci-Ci 2 linear, C 3 -Ci 2 branched, or C 3 - Ci 2 cyclic alkyl or substituted Ci-Ci 2 linear, C 3 -Ci 2 branched, or C 3 -Ci 2 cyclic alkyl.
- Non-limiting examples include 2- hydroxyethyl ammonium (cation of monoethanolamine, cholinate) [HN + H 2 (CH 2 CH 2 OH)], methyl-2-hydroxyethyl ammonium [H 2 N + (CH 3 )(CH 2 CH 2 OH)], di(2 -hydroxyethyl) ammonium [H 2 N + (CH 2 CH 2 OH) 2 ], tri(2-hydroxyethyl) ammonium [HN + (CH 2 CH 2 OH) 3 ], and tris(hydroxymethyl)methyl ammonium (cation of tris(hydroxymethyl)aminomethane) [H 3 N + C[(CH 2 OH)] 3 ].
- amino sugars having the formula H 2 N (CH 3 )[(CHOH) n CH 2 OH] wherein n is from 1 to 7.
- amino sugars suitable for forming an organic cation is meglumine ( 1 -deoxy- 1 -methylamino-sorbitol).
- a further iteration of this embodiment relates to cations formed from amino acids.
- Non-limiting examples include lysine, ornithine, arginine, glutamine, and the like.
- organic amines suitable for forming salts of the disclosed stabilizer include amines wherein one or more of R a , R b and R c are taken together to form a heterocyclic ring that can comprise from 3 to 20 atoms and optionally one or more heteroatoms chosen from nitrogen, oxygen and sulfur.
- Non-limiting examples include piperazine, piperidine, morpholine, thiomorpholine, and the like.
- Non-limiting examples of di-valent cations includes calcium magnesium, barium and the like.
- the formulator can prepare an admixture comprising a plurality of final compounds in one step by the choice of reactants in the final process step as described herein.
- the formulator can prepare an admixture comprising a plurality of final compounds in one step by the choice of reactants in the final process step as described herein.
- two or more analogs can have approximately equal pharmacological activity, other properties such as bioavailability can be different.
- Using the disclosed intermediates to form admixtures of final analogs can provide the formulator with a final composition which utilizes the disparate pharmacological activities of the molecules to provide for a constant level of a desired property.
- one analog in the admixture can have immediate bioavailability while a second or third compound has a slower bioavailability which can provide a pharmacologically active composition that has a steady or near steady level of drug active in a user.
- Disclosed herein is a process for preparing the herein above disclosed [(5-phenyl-3- hydroxypyridine-2-carbonyl)-amino]alkanoic acids and [(5-heteroaryl-3-hydroxypyridine- 2-carbonyl)-amino]alkanoic acids.
- the 5-phenyl and 5-heteroaryl rings can be substituted by one or more independently chosen substitutions for hydrogen.
- Step A relates to the condensation of an aryl or heteroaryl borate precursor, Al, and a 3,5-dihalo-2-cyanopyridine, A2, wherein each Z is independently chloro or bromo, to form a 5-aryl or 5-heteroaryl-3-halo-2-cyanopyridine, A3.
- the borate precursor, Al comprises ring A wherein ring A can be:
- Y is OR 20 , wherein R 20 is hydrogen or C1-C 6 linear, C3-C6 branched, or C3-C6 cyclic alkyl, or two OR 20 units can be taken together to form a 5-member to 7-member C3-C1 0 cyclic ester, for example, a cyclic ester having the formula:
- borate precursor to phenyl boronic acid having the formula:
- borate precursors relates to substituted boronic acids having the formula:
- R represents from 1 to 5 substitutions as defined herein above.
- Non-limiting examples of this aspect includes borate precursors having the formula:
- the 3,5-dihalo-2-cyanopyridine, A2 is chosen from 3,5-dichloro-2-cyanopyridine, 3-chloro-5-bromo-2-cyanopyridine, 3,5-dibromo-2-cyanopyridine and 3-bromo-5-chloro-2- cyanopyridine.
- Step A is conducted in the presence of a catalyst, for example, a Suzuki coupling catalyst.
- the formulator can choose the catalyst and conditions that are compatible with the reagents, i.e., borate precursor and 3,5-dihalo-2-cyanopyridine.
- the catalyst is [l,l '-bis(diphenyphosphino)ferrocene]dichloro- palladium(II) [PdCl 2 (dppf)].
- catalysts include ortho-metalated catalysts with alkylphosphine ligands of the general formula [Pd(X)(K 2 N,C-C 6 H 4 CH 2 NMe 2 )(PR3)] wherein R is Cy, X is trifluoroacetate, trifluoromethanesufonyl, chloro, or iodo; PR 3 is PCy 2 (o-biphenyl), X is trifluoroacetate).
- Non-limiting examples of this category include [ ⁇ Pd ⁇ -TFA)(K 2 N,C-
- the catalyst can be preformed, for example, purchased from a chemical supplier or the catalyst can be generated in situ.
- Step A wherein the catalyst is generated in situ includes the following procedure. Pd(OAc) 2 (1.5 mmol %), 3,3 '-dimethyl- l, (2,4-bismethylenemesitylene)(4,4,5,6-tetrahydropyrimidinium) chloride (1.5 mmol %), a borate precursor (1.5 mmol), a 3,5-dihalo-2-cyanopyridine (1.0 mmol), K 2 C0 3 (2 mmol), water (3 mL)-DMF (3 mL) are added to a small Schlenk tube and the mixture heated at 80 °C for 5 hours. At the conclusion of the reaction, the mixture is collected, removed by extraction with suitable solvent, and the desired product isolated by methods known to the artisan.
- Step A is conducted in the presence of a base.
- suitable bases that can be used in Step A includes LiOH, NaOH, KOH, Ca(OH) 2 , Li 2 C0 3 , Na 2 C0 3 , K 2 C0 3; and CaC0 3 .
- the base is K 2 C0 3 .
- the base is Na 2 C0 3 .
- Step A can be optionally conducted in the presence of a solvent.
- solvents include water, formic acid, acetic acid; alcohols, for example, methanol, ethanol, 2,2,2-trichlorethanol, propanol, isopropanol, butanol, tert-butanol, and the like; ketones, for example, acetone, methyl ethyl ketone, diethyl ketone, and the like; esters, for example, methyl acetate, ethyl acetate, methyl propionate, ethyl propionate, and the like; ethers, for example, diethyl ether, methyl tert-butyl ether, tetrahydrofuran, dimethoxyethane, bis(2-methoxyethyl) ether (diglyme), l,4-dioxane,and the like; alkanes, for example, pentane, isopentane, petroleum
- the reaction can be conducted at any temperature sufficient to provide the desired products or desired products.
- Step B relates to the conversion of a 5-aryl or 5-heteroaryl-3-halo-2-cyanopyridine, A3, to a 5-aryl or 5-heteroaryl-3-alkoxy-2-cyanopyridine, B.
- intermediate A3 can be reacted with methoxide anion.
- the methoxide anion can be generated in situ, for example, by the addition of an alkali metal to methanol. In one example, from 1 equivalent to 10 equivalents of sodium metal based upon the amount of A3 to be converted in Step B, is added to an excess of methanol. In another example, an alkali metal is added to an excess of methanol, the solvent removed, and the resulting sodium methoxide retained for use when, for example, Step B is conducted in a solvent other than methanol.
- the intermediate A3 can be reacted with ethoxide anion generated from ethanol. In still another embodiment, the intermediate A3 can be reacted with isopropoxy anion generated from isopropanol.
- step B can be conducted at any temperature sufficient to provide the desired products or desired products.
- step B can be conducted in any solvent or mixtures of solvents that do not react with methoxide anion under the conditions chosen by the formulator.
- Step C relates to the conversion of the 5-aryl or 5-heteroaryl-3-alkoxy-2- cyanopyridine formed in step B to form a 5-aryl or 5-heteroaryl-3-hydroxy-2- carboxypyridine, C, (5-aryl or 5-heteroaryl-3-hydroxypicolinic acid).
- This conversion can be conducted in the presence of any acid capable of hydrolysis of the cyano moiety to a carboxylic acid moiety and the methoxy moiety to a hydroxyl moiety.
- 48% aqueous HBr can be used.
- 37% aqueous HC1 can be used.
- the compounds having formula C can be isolated as the free acid or as a salt, for example, as a compound having the formula:
- the formulator can proceed to step D or retain the products of step C for use in preparing admixtures of prolyl hydroxylase inhibitors or for preparing prodrugs of prolyl hydroxylase inhibitors.
- Step D relates to the reaction of the 5-aryl or 5-heteroaryl-3-hydroxy-2- carboxypyridine formed in step C with a compound having formula D 1 , wherein X is chosen from -OH, -OR 3 , -NR 4 R 5 or -OM 1 as defined herein above, to form one of the following:
- step D relates to formation of a prolyl hydroxylase inhibitor according to the following scheme:
- R 7a , R 7b , R 8 and the index n are defined herein above.
- step D relate to formation of a prolyl hydroxylase ester prodrug according to the following scheme:
- R 3 , R 7a , R 7b , R 8 and the index n are defined herein above.
- step D relate to formation of a prolyl hydroxylase amide prodrug according to the following scheme:
- R 4 , R 5 , R 7a , R 7b , R 8 and the index n are defined herein above.
- Step D relates to the coupling of a 5-aryl or 5-heteroaryl-3-hydroxy-2-carboxy- pyridine, C, prepared in Step C with an amino acid, amino acid ester, or amino acid amide.
- Any coupling reagent compatible with the 5-aryl or 5-heteroaryl-3-hydroxy-2-carboxy- pyridine, amino acid, amino acid ester, or amino acid amide can be used to prepare the desired prolyl hydroxylase inhibitors or prodrugs thereof.
- Non-limiting examples of coupling reagents includes carbonyldiimidazole (CDI), dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIC), and ethyl-(N',N'-dimethylamino)propylcarbodiimide (EDC), (benzotriazol- 1 -yloxy)tris(dimethylamino)phosphonium hexafluorophosphate (BOP), (benzotriazol- l -yloxy)tripyrrolidinophosphonium hexafluorophosphate (PyBOP), 0-(benzotriazol-l -yl)-N,N,N'N'-tertaetyluronium hexafluorophosphate (HBTU), O- (benzotriazol- l-yl)-N,N,N'N'-tertamethyluronium tetrafluorobo
- step D can be conducted with a suitable reagent such as bromo-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBrOP).
- a suitable reagent such as bromo-tris-pyrrolidino-phosphonium hexafluorophosphate (PyBrOP).
- a further iteration of the reaction outlined in step D utilizes an in situ generated mixed anhydride of the 5-aryl or 5-heteroaryl-3-hydroxy-2-carboxypyridine, for example, reacting compound C with a mixed anhydride forming reagent.
- a mixed anhydride forming reagent include isobutylchloro-formate (IBCF), ethylchoroformate, isopropylchloroformate, and the like.
- Other coupling reagents include 2-chloro-3,6-dimethoxy-l,3,5-triazine, pivalolyl chloride and triphosgene.
- acyl chlorides can be used to activate the carbonyl moiety of compound C for the coupling exemplified in step D.
- pivaloyl chloride in THF are used to catalyze the coupling reaction.
- An organic or inorganic base can be used for conducting step D.
- suitable organic bases include diisopropylethylamine, and the like.
- Step D can be conducted in one or more solvents.
- solvents include dimethylformamide (DMF), diethylformamide (DEF), dimethylacetamide (DMA), diethylacetamide(DEA), dimethyl sulfoxide(DMSO), dioxane, and water.
- a mixture of water and one or more polar organic solvents can be used, for example, DMF/water, DMSO/water, dioxane/water, DMF/dioxane/water, and the like.
- the formulator can form a prodrug prior then further process the prodrug to the final prolyl hydroxylase inhibitor.
- the intermediate C may comprise an R 10 unit that has a protecting group present, i.e., carbobenzyloxy, tert-butoxycarbonyl, and the like.
- a protecting group present, i.e., carbobenzyloxy, tert-butoxycarbonyl, and the like.
- the hydrolysis can be conducted in any suitable acid or base.
- Step D can be modified by the formulator to meet the properties of the reagents.
- Example 1 describes a non-limiting example of the disclosed process for the preparation of a prolyl hydroxylase ester pro-drug.
- the reaction was determined to be complete due to the disappearance of 5-(3-chlorophenyl)-3-chloro-2-cyanopyridine as measured by TLC analysis using hexane/ethyl acetate (6:3) as the mobile phase and UV 435 nm to visualize the reaction components.
- the reaction mixture was cooled to room temperature and combined with water (500 mL). A solid began to form. The mixture was cooled to 0 °C to 5 °C and stirred for 3 hours. The resulting solid was collected by filtration and washed with water, then hexane. The resulting cake was dried in vacuo at 40 °C to afford 9.4 g (96% yield) of the desired product as an off-white solid.
- the reaction was determined to be complete due to the disappearance of 5-(3-chlorophenyl)-3-methoxy-2-cyanopyridine as measured by TLC analysis using hexane/ethyl acetate (6:3) as the mobile phase and UV 435 nm to visualize the reaction components.
- the reaction contents was then cooled to 0 °C to 5 °C with stirring and the pH was adjusted to approximately 2 by the slow addition of 50% aqueous NaOH. Stirring was then continued at 0 °C to 5 °C for 3 hours. The resulting solid was collected by filtration and washed with water, then hexane.
- the filtrate is concentrated to dryness under reduced pressure and the resulting residue was slurried in methanol (10 mL) for two hours. The resulting solid was collected by filtration and washed with cold methanol (20 mL) then hexane and the resulting cake is dried to afford 0.85 g of the desired product as an off-white solid. The filtrate was treated to afford 0.026 g of the desired product as a second crop. The combined crops afford 0.88 g (68% yield) of the desired product.
- the formulator can readily scale up the above disclosed synthesis. Disclosed herein below is a synthesis wherein the disclosed process is scaled up for commercial use.
- reaction solution was agitated and purged with nitrogen through the dip-tube for 30 minutes.
- Degassed water (413 g) was then charged to the reaction mixture while maintaining a temperature of less than 50 °C 25 hours.
- the reaction was determined to be complete due to the disappearance of 3,5-dichloro-2-cyanopyridine as measured by TLC analysis using ethyl acetate/methanol (4: 1) as the mobile phase and UV 435 nm to visualize the reaction components.
- the reaction solution was then cooled to 5 °C and charged with heptane (940 g, 1.375 L) and agitated for 30 minutes. Water (5.5 L) was charged and the mixture was further agitated for 1 hour as the temperature was allowed to rise to 15 °C.
- the solid product was isolated by filtration and washed with water (5.5 L) followed by heptane (18881 g, 2750 ML). The resulting cake was air dried under vacuum for 18 hours and then triturated with a mixture of 2-propanol (6908 g, 8800 mLO and heptane (1 g, 2200mL0 at 50 °C for 4 hours, cooled to ambient temperature and then agitated at ambient temperature for 1 hour. The product was then isolated by filtration and washed with cold 2-propanol (3450 g, 4395 mL) followed by heptane (3010 g, 4400mL).
- the reaction was determined to be complete due to the disappearance of 5-(3-chlorophenyl)-3- chloro-2-cyanopyridine as measured by TLC analysis using hexane/ethyl acetate (6:3) as the mobile phase and UV 435 nm to visualize the reaction components.
- the reaction mixture was cooled to 5 °C and then charged with water (5580 mL).
- the resulting slurry was agitated for 3 hours at 5 °C.
- the solid product was isolated by filtration and washed with water (5580 mL) until the filtrate had a pH of 7.
- the filter cake was air dried under vacuum for 16 hours.
- Reagents and conditions (a) NaOH, THF; 2 hr.
- the mixture was stirred for 2 hours at room temperature after which it was determined by TLC analysis using hexane/ethyl acetate (6:3) as the mobile phase and UV 435 nm to visualize the reaction components that the reaction was complete.
- the reaction solution was adjusted to pH 1 with concentrated HC1 and the solution was heated at 35 °C under vacuum until all of the tetrahydrofuran had been removed. A slurry forms as the solution is concentrated. With efficient stirring the pH is adjusted to ⁇ 2 with the slow addition of 1 M NaOH. The solid which forms was collected by filtration, washed with water, followed by hexane, then dried under vacuum to afford 0.38 g (88% yield) of the desired product as a white solid.
- the formulator can readily scale up the above disclosed synthesis. Disclosed herein below is a synthesis wherein the disclosed process is scaled up for commercial use.
- the mixture was stirred for 2 hours at room temperature after which it was determined by TLC analysis using hexane/ethyl acetate (6:3) as the mobile phase and UV 435 nm to visualize the reaction components that the reaction was complete.
- the reaction solution was acidified to a pH of 2 with slow addition of 2M HC1 (2359 g).
- the resulting mixture was concentrated under reduced pressure to a volume of about 7.5 L.
- Ware (2210 g) was added and the solution cooled to ambient temperature and agitated for 18 hours.
- the solid product was isolated by filtration and washed with water (6 L). the crude product was transferred back into the reactor and triturated with 2215 g o deionized water at 70 °C for 16 hours.
- Reagents and conditions (a) EDCI, HOBt, DIPEA, DMF; rt.
- Scheme IV herein below depicts a non-limiting example the hydrolysis of an amide pro-drug to a prolyl hydroxylase inhibitor after removal of a R 10 protecting group.
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Abstract
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Priority Applications (34)
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KR1020197007633A KR102032864B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
DK12796374.2T DK2718265T3 (en) | 2011-06-06 | 2012-06-05 | Process for the preparation of [(3-Hydroxypyridine-2-carbonyl) amino] alkanoic acids, esters and amides |
KR1020147000297A KR102000485B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
KR1020207029586A KR102293016B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
CA2838194A CA2838194C (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
CN201280038564.3A CN103717575B (en) | 2011-06-06 | 2012-06-05 | For preparing [(3-pyridone-2-carbonyl) amino] alkanoic acid, ester and the method for amide |
KR1020197037296A KR102171315B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
EP19214405.3A EP3683209B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl)-amino]acetic acid from 5-((3-chlorophenyl)-3-chloro-pyridin-2-yl)-nitrile, and process for preparing 5-((halophenyl)-3-halo-pyridin-2-yl)-nitrile derivatives |
EP21206374.7A EP4026829A1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing n-[[5-(3-chlorophenyl)-3-hydroxy-2-pyridinyl]carbonyl]-glycine from 5-(3-chlorophenyl)-3-hydroxy-2-pyridine carboxylic acid |
PL19214405T PL3683209T3 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(5-(3-chlorophenyl)-3-hydroxypyridine-2-carbonyl)-amino]acetic acid from 5-((3-chlorophenyl)-3-chloro-pyridin-2-yl)-nitrile, and process for preparing 5-((halophenyl)-3-halo-pyridin-2-yl)-nitrile derivatives |
CN201610967348.7A CN106518759B (en) | 2011-06-06 | 2012-06-05 | The method for being used to prepare [(3- pyridone -2- carbonyl) amino] alkanoic acid, ester and amide |
ES12796374.2T ES2559850T3 (en) | 2011-06-06 | 2012-06-05 | Process for preparing acids, esters and amides [(3-hydroxypyridin-2-carbonyl) amino] alkanoic acids |
AU2012268426A AU2012268426B2 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
SI201230432T SI2718265T1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing ((3-hydroxypyridine-2-carbonyl)amino)alkanoic acids, esters and amides |
RS20160013A RS54517B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
PL17191362T PL3290404T3 (en) | 2011-06-06 | 2012-06-05 | 5-((halophenyl)-3-halo-pyridin-2-yl)-nitrile derivatives as intermediates in the preparation of [(5-(halophenyl)-3-hydroxypyridine-2-carbonyl)-amino]alkanoic acid derivatives |
KR1020197007630A KR102059366B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
RU2013158640/04A RU2602083C2 (en) | 2011-06-06 | 2012-06-05 | Method of producing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
NZ618570A NZ618570B2 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
EP12796374.2A EP2718265B1 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
PL12796374T PL2718265T3 (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
MX2013014228A MX337216B (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkano ic acids, esters and amides. |
MX2015016579A MX347709B (en) | 2011-06-06 | 2012-06-05 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkano ic acids, esters and amides. |
JP2014514536A JP6290781B2 (en) | 2011-06-06 | 2012-06-05 | [(3-Hydroxypyridine-2-carbonyl) amino] alkanoic acid, ester and amide production method |
EP17191362.7A EP3290404B1 (en) | 2011-06-06 | 2012-06-05 | 5-((halophenyl)-3-halo-pyridin-2-yl)-nitrile derivatives as intermediates in the preparation of [(5-(halophenyl)-3-hydroxypyridine-2-carbonyl)-amino]alkanoic acid derivatives |
IL229775A IL229775A (en) | 2011-06-06 | 2013-12-03 | Process for preparing [(3-hydroxypyridine-2 - carbonyl) amino] alkanoic acids, esters and amides |
HK14110125.1A HK1196616A1 (en) | 2011-06-06 | 2014-10-10 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides [(3--2-)] |
HRP20151416T HRP20151416T1 (en) | 2011-06-06 | 2015-12-23 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
SM201600013T SMT201600013B (en) | 2011-06-06 | 2016-01-15 | PROCEDURE FOR THE PREPARATION OF ACIDS, ESTERS, AND AMMIDS [(3-HYDROXYPYLIDIN-2-CARBONYL) AMINO] ALCANOANIC |
AU2017202414A AU2017202414B2 (en) | 2011-06-06 | 2017-04-12 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
AU2018250355A AU2018250355B2 (en) | 2011-06-06 | 2018-10-15 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
CY20201100087T CY1122639T1 (en) | 2011-06-06 | 2020-02-03 | 5-((HALOPHENYL)-3-HALO-PYRIDIN-2-YL)-NITRILE DERIVATIVES AS INTERMEDIATES IN THE PREPARATION OF [(5-HALOPHENYL)-3-HYDROXYPYRIDINO-2-CARBONYL)- AMINO]ALKANOIC ACID DERIVATIVES |
AU2020204528A AU2020204528B2 (en) | 2011-06-06 | 2020-07-07 | Process for preparing [(3-hydroxypyridine-2-carbonyl)amino]alkanoic acids, esters and amides |
CY20211101079T CY1124874T1 (en) | 2011-06-06 | 2021-12-08 | PROCESS FOR THE PREPARATION OF [(5-(3-CHLOROPHENYL)-3-HYDROXYPYRIDINO-2-CARBONYL)-AMINO]ACETIC ACID FROM 5-((3-CHLOROPHENYL)-3-CHLORO-PYRIDIN-2-YL)-NITRILE, AND PROCESS FOR THE PREPARATION OF 5-((HALOPHENYL)-3-HALO-PYRIDIN-2-YL)-NITRILE DERIVATIVES |
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