WO2015127125A1 - Compounds and methods for inhibiting fascin - Google Patents

Compounds and methods for inhibiting fascin Download PDF

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Publication number
WO2015127125A1
WO2015127125A1 PCT/US2015/016686 US2015016686W WO2015127125A1 WO 2015127125 A1 WO2015127125 A1 WO 2015127125A1 US 2015016686 W US2015016686 W US 2015016686W WO 2015127125 A1 WO2015127125 A1 WO 2015127125A1
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Prior art keywords
lower alkyl
compound
cancer
group
cor
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PCT/US2015/016686
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French (fr)
Inventor
Xin-Yun Huang
Christy Young Shue
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Cornell University
Novita Pharmaceuticals, Inc.
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Application filed by Cornell University, Novita Pharmaceuticals, Inc. filed Critical Cornell University
Priority to ES15752063T priority Critical patent/ES2868882T3/en
Priority to EP15752063.6A priority patent/EP3107902B1/en
Priority to JP2016552984A priority patent/JP6691869B2/en
Priority to CN201580009687.8A priority patent/CN106232583B/en
Priority to CA2940144A priority patent/CA2940144C/en
Priority to DK15752063.6T priority patent/DK3107902T3/en
Priority to CN202010244131.XA priority patent/CN111349087B/en
Publication of WO2015127125A1 publication Critical patent/WO2015127125A1/en

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    • 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
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    • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/04—Indoles; Hydrogenated indoles
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    • C07D209/04—Indoles; Hydrogenated indoles
    • C07D209/30—Indoles; Hydrogenated indoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to carbon atoms of the hetero ring
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    • C07D401/06—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 two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
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    • C07D401/12—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 two hetero rings linked by a chain containing hetero atoms as chain links
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    • 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
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    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
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    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
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    • C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
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    • 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

Definitions

  • the present technology relates generally to compounds, compositions and methods for treating or preventing cancer.
  • the present technology provides compounds of Formula I, Formula la, Formula lb, Formula Ic, Formula Id, or Formula Ie:
  • a 1 , A 2 , A 3 , A 4 , A 5 and A 6 are independently CH, CR 3 or N, provided that no more than four of A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are N;
  • R 1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 6 ;
  • L 2 is selected from the group consisting of a covalent bond, -NR 8 -,
  • R 2 is H, lower alkyl, 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR lu R , -NR 1U C0 2 R ⁇ -SOR ⁇ -S0
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • q 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl), lower haloalkyl, and -CH 2 OH;
  • R 7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl
  • R 8 is hydrogen or lower alkyl (such as methyl or ethyl);
  • each R 10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
  • R 11 is hydrogen or R 3 ;
  • the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide, and provided that when L 2 is a covalent bond, then R 2 is not H or lower alkyl.
  • the present technology provides a compound selected from 1 or a tautomer, and/or pharmaceutically acceptable salt thereof:
  • the present technology provides a pharamceutical composition comprising at least one compound described herein.
  • the present technology provides a method of treating a condition or disorder mediated by fascin activity in a subject in need thereof which method comprises administering to the subject a therapeutically effective amount of at least one compound or a composition described herein.
  • the present technology provides a method of inhibiting fascin activity, comprising administering an effective amount of a compound or a composition described herein to a cell in need thereof to thereby inhibit fascin activity in the cell.
  • the present technology provides a compound or a composition described herein for use in inhibiting fascin activity or in treating a condition or disorder mediated by fascin activity in a subject in need thereof.
  • the present technology provides use of a compound or a composition described herein in the preparation of a medicament for treating a condition or disorder mediated by fascin activity in a subject in need thereof or for inhibiting fascin activity.
  • the cell is in an animal. In some embodiments, the cell has been removed from an animal. In some embodiments, the animal is a human. In some embodiments, the human suffers from a disease or condition.
  • the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage.
  • the condition or disorder is a metastatic cancer.
  • the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer.
  • the present technology provides methods and intermediate compounds for the preparation of compounds of Formula I or tautomer thereof, and/or a pharmaceutically acceptable salt thereof.
  • the intermediate compounds are of any of the following Formulas
  • a 1 , A 2 , A 3 , A 4 , A 5 and A 6 are independently CH, CR 3 or N, provided that no more than four of A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are N;
  • a 7 is NH or CH 2 ;
  • Y is F, CI, Br or I
  • R 1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 6 ;
  • R 2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • q 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl) and lower haloalkyl;
  • R 7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl
  • R 11 is hydrogen or R 3 ;
  • each R 10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring.
  • Fascin is an actin-bundling protein.
  • actin For cell migration to proceed, actin
  • cytoskeleton must be reorganized by forming polymers and bundles to affect the dynamic changes of cell shapes (13-15).
  • Individual actin filaments are flexible and elongation of individual filaments per se is insufficient for membrane protrusion which is necessary for cell migration.
  • Bundling of actin filaments provides rigidity to actin filaments for protrusions in the form of lamellipodia and filopodia against the compressive force from the plasma membrane (16) (17).
  • one of the critical actin-bundling proteins is fascin (18-22). Fascin is the primary actin cross-linker in filopodia and shows no sequence homology with other actin-binding proteins (23). It is required to maximally cross-link the actin filaments into straight, compact, and rigid bundles (24).
  • fascin inhibitors may target tumor cell migration and invasion, and provide treatments for metastatic cancer.
  • a dash (“-") that is not between two letters or symbols is used to indicate a point of attachment for a substituent.
  • -CONH 2 is attached through the carbon atom.
  • Alkyl encompasses straight chain and branched chain having the indicated number of carbon atoms, usually from 1 to 20 carbon atoms, for example 1 to 8 carbon atoms, such as 1 to 6 carbon atoms.
  • Ci-C 6 alkyl encompasses both straight and branched chain alkyl of from 1 to 6 carbon atoms.
  • alkyl groups include methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, pentyl, 2-pentyl, isopentyl, neopentyl, hexyl, 2-hexyl, 3-hexyl, 3-methylpentyl, and the like.
  • Alkylene is another subset of alkyl, referring to the same residues as alkyl, but having two points of attachment. Alkylene groups will usually have from 2 to 20 carbon atoms, for example 2 to 8 carbon atoms, such as from 2 to 6 carbon atoms.
  • Co alkylene indicates a covalent bond and Ci alkylene is a methylene group.
  • alkyl residue having a specific number of carbons is named, all geometric isomers having that number of carbons are intended to be encompassed; thus, for example, “butyl” is meant to include n-butyl, sec-butyl, isobutyl and t-butyl; “propyl” includes n-propyl and isopropyl.
  • “Lower alkyl” refers to an alkyl group having 1 to 4 carbons.
  • Cycloalkyl indicates a non-aromatic partially saturated, or fully saturated carbocyclic ring having the indicated number of carbon ring atoms, for example, 3 to 10, or 3 to 8, or 3 to 6 ring carbon atoms. Cycloalkyl groups may be monocyclic or poly eye lie (e.g., bicyclic, tricyclic). Examples of cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl and cyclohexyl, as well as bridged and caged ring groups (e.g. , norbornane, bicyclo[2.2.2]octane).
  • one ring of a polycyclic cycloalkyl group may be aromatic, provided the polycyclic cycloalkyl group is bound to the parent structure via a non-aromatic carbon.
  • a 1,2,3,4-tetrahydronaphthalen-l-yl group (wherein the moiety is bound to the parent structure via a non-aromatic carbon atom) is a cycloalkyl group, while l,2,3,4-tetrahydronaphthalen-5-yl (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is not considered a cycloalkyl group.
  • polycyclic cycloalkyl groups consisting of a cycloalkyl group fused to an aromatic ring are described below.
  • Aryl indicates an aromatic carbon ring having the indicated number of carbon atoms, for example, 6 to 12 or 6 to 10 carbon atoms, in the ring.
  • Aryl groups may be monocyclic or polycyclic (e.g., bicyclic, tricyclic). In some instances, both rings of a polycyclic aryl group are aromatic (e.g., naphthyl). In other instances, polycyclic aryl groups may include a non-aromatic ring (e.g., cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl) fused to an aromatic ring, provided the polycyclic aryl group is bound to the parent structure via an atom in the aromatic ring.
  • a l,2,3,4-tetrahydronaphthalen-5- yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is considered an aryl group
  • 1,2,3,4-tetrahydronaphthalen-l-yl (wherein the moiety is bound to the parent structure via a non-aromatic carbon atom) is not considered an aryl group.
  • aryl does not encompass or overlap with "heteroaryl", as defined herein, regardless of the point of attachment (e.g., both quinolin-5-yl and quinolin-2-yl are heteroaryl groups).
  • aryl is phenyl or naphthyl.
  • aryl is phenyl. Additional examples of aryl groups comprising an aromatic carbon ring fused to a non-aromatic ring are described below.
  • Carboxy or “carboxyl” refers to -COOH or a salt thereof.
  • Heteroaryl indicates an aromatic ring containing the indicated number of ring atoms (e.g., 5 to 12, or 5 to 10 membered heteroaryl) made up of one or more heteroatoms (e.g., 1, 2, 3 or 4 heteroatoms) selected from N, O and S and with the remaining ring atoms being carbon.
  • 5 -Membered heteroaryl is a heteroaryl having 5 ring atoms.
  • 6-Membered heteroaryl is a heteroaryl having 6 ring atoms.
  • Heteroaryl groups do not contain adjacent S and O atoms. In some embodiments, the total number of S and O atoms in the heteroaryl group is not more than 2.
  • the total number of S and O atoms in the heteroaryl group is not more than 1.
  • heteroaryl groups may be bound to the parent structure by a carbon or nitrogen atom, as valency permits.
  • pyridyl includes 2-pyridyl, 3-pyridyl and 4-pyridyl groups
  • pyrrolyl includes 1- pyrrolyl, 2-pyrrolyl and 3-pyrrolyl groups.
  • nitrogen is present in a heteroaryl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., N + -0 " ).
  • heteroaryl groups when sulfur is present in a heteroaryl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., S + -0 " or S0 2 ).
  • Heteroaryl groups may be monocyclic or polycyclic (e.g., bicyclic, tricyclic). [0030] In some instances, a heteroaryl group is monocyclic.
  • Examples include pyrrole, pyrazole, imidazole, triazole (e.g., 1 ,2,3-triazole, 1 ,2,4-triazole, 1 ,2,4-triazole), tetrazole, furan, isoxazole, oxazole, oxadiazole (e.g., 1 ,2,3-oxadiazole, 1 ,2,4-oxadiazole, 1 ,3,4- oxadiazole), thiophene, isothiazole, thiazole, thiadiazole (e.g., 1 ,2,3-thiadiazole, 1 ,2,4- thiadiazole, 1 ,3,4-thiadiazole), pyridine, pyridazine, pyrimidine, pyrazine, triazine (e.g., 1 ,2,4-triazine, 1 ,3,5-triazine) and tetrazine.
  • both rings of a polycyclic heteroaryl group are aromatic.
  • Examples include indole, isoindole, indazole, benzoimidazole, benzotriazole, benzofuran, benzoxazole, benzoisoxazole, benzoxadiazole, benzothiophene, benzothiazole,
  • naphthyridine e.g., 1 ,8-naphthyridine, 1 ,7- naphthy
  • polycyclic heteroaryl groups may include a non-aromatic ring (e.g. , cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl) fused to a heteroaryl ring, provided the polycyclic heteroaryl group is bound to the parent structure via an atom in the aromatic ring.
  • a non-aromatic ring e.g. , cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl
  • a 4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is considered a heteroaryl group
  • 4,5,6,7-tetrahydrobenzo[d]thiazol-5-yl (wherein the moiety is bound to the parent structure via a non-aromatic carbon atom) is not considered a heteroaryl group.
  • polycyclic heteroaryl groups consisting of a heteroaryl ring fused to a non- aromatic ring are described below.
  • Heterocycloalkyl indicates a non-aromatic partially saturated, or fully saturated ring having the indicated number of ring atoms (e.g., 3 to 10, or 3 to 7, membered
  • heterocycloalkyl made up of one or more heteroatoms (e.g., 1, 2, 3 or 4 heteroatoms) selected from N, O and S and with the remaining ring atoms being carbon.
  • 5 -Membered heterocycloalkyl is a heterocycloalkyl having 5 ring atoms.
  • 6-Membered heterocycloalkyl is a heterocycloalkyl having 6 ring atoms.
  • Heterocycloalkyl groups may be monocyclic or polycyclic (e.g., bicyclic, tricyclic).
  • heterocycloalkyl groups include oxiranyl, aziridinyl, azetidinyl, pyrrolidinyl, imidazolidinyl, pyrazolidinyl, piperidinyl, piperazinyl, morpholinyl and thiomorpholinyl.
  • nitrogen When nitrogen is present in a heterocycloalkyl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., N + -0 " ).
  • Examples include piperidinyl N-oxide and morpholinyl-N-oxide.
  • heterocycloalkyl ring when sulfur is present in a heterocycloalkyl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., S + -0 " or -S0 2 -). Examples include thiomorpholine S-oxide and thiomorpholine S,S-dioxide.
  • one ring of a polycyclic heterocycloalkyl group may be aromatic (e.g., aryl or heteroaryl), provided the polycyclic heterocycloalkyl group is bound to the parent structure via a non-aromatic carbon or nitrogen atom.
  • a 1,2,3,4-tetrahydroquinolin-l-yl group (wherein the moiety is bound to the parent structure via a non-aromatic nitrogen atom) is considered a
  • heterocycloalkyl group while l,2,3,4-tetrahydroquinolin-8-yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is not considered a
  • heterocycloalkyl group examples include polycyclic heterocycloalkyl groups consisting of a heterocycloalkyl group fused to an aromatic ring are described below.
  • alkoxy is meant an alkyl group of the indicated number of carbon atoms attached through an oxygen bridge such as, for example, methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, sec-butoxy, tert-butoxy, pentoxy, 2-pentyloxy, isopentoxy,
  • alkoxy group is further meant to encompass a cycloalkyl group, as defined above, that is likewise attached through an oxygen bridge.
  • Alkoxy groups will usually have from 1 to 6 carbon atoms attached through the oxygen bridge. "Lower alkoxy” refers to an alkoxy group having 1 to 4 carbons.
  • halo includes fluoro, chloro, bromo, and iodo
  • halogen includes fluorine, chlorine, bromine, and iodine.
  • substituted means that any one or more hydrogens on the designated atom or group is replaced with a selection from the indicated group, provided that the designated atom's normal valence is not exceeded.
  • substituents and/or variables are permissible only if such combinations result in stable compounds or useful synthetic intermediates.
  • a stable compound or stable structure is meant to imply a compound that is sufficiently robust to survive isolation from a reaction mixture, and subsequent formulation as an agent having at least practical utility.
  • substituents are named into the core structure. For example, it is to be understood that when (cycloalkyl)alkyl is listed as a possible substituent, the point of attachment of this substituent to the core structure is in the alkyl portion.
  • Haloalkyl refers to alkyl groups substituted with 1 to 5, 1 to 3, or 1 to 2 halo groups, wherein alkyl and halo are as defined herein.
  • Lower haloalkyl refers to a C 1 -C 4 alkyl substituted with 1 to 5, 1 to 3, or 1 to 2 halo groups.
  • “Lower alkylphenyl” refers to C 1 -C 4 alkyl-phenyl.
  • Steps are isomers that differ only in the way the atoms are arranged in space.
  • Enantiomers are stereoisomers that are non-superimposable mirror images of each other.
  • a 1 : 1 mixture of a pair of enantiomers is a "racemic” mixture.
  • the symbol “( ⁇ )” may be used to designate a racemic mixture where appropriate.
  • Diastereoisomers are stereoisomers that have at least two asymmetric atoms, but which are not mirror-images of each other.
  • a “meso compound” or “meso isomer” is a non-optically active member of a set of stereoisomers. Meso isomers contain two or more stereocenters but are not chiral (i.e., a plane of symmetry exists within the molecule).
  • the absolute stereochemistry is specified according to the Cahn- Ingold-Prelog R-S system.
  • the stereochemistry at each chiral carbon can be specified by either R or S.
  • Resolved compounds whose absolute configuration is unknown can be designated (+) or (-) depending on the direction (dextro- or levorotatory) which they rotate plane polarized light at the wavelength of the sodium D line.
  • Certain of the compounds disclosed and/or described herein contain one or more asymmetric centers and can thus give rise to enantiomers, diastereomers, meso isomers and other stereoisomeric forms.
  • compounds disclosed and/or described herein include all such possible enantiomers, diastereomers, meso isomers and other stereoisomeric forms, including racemic mixtures, optically pure forms and intermediate mixtures. Enantiomers, diastereomers, meso isomers and other stereoisomeric forms can be prepared using chiral synthons or chiral reagents, or resolved using conventional techniques. Unless specified otherwise, when the compounds disclosed and/or described herein contain olefmic double bonds or other centers of geometric asymmetry, it is intended that the compounds include both E and Z isomers.
  • Tautomers are structurally distinct isomers that interconvert by tautomerization. Tautomerization is a form of isomerization and includes prototropic or proton-shift tautomerization, which is considered a subset of acid-base chemistry. Prototropic tautomerization or proton-shift tautomerization involves the migration of a proton
  • tautomerization e.g. in solution
  • keto-enol tautomerization A specific example of keto-enol tautomerization is the interconverision of pentane-2,4-dione and 4-hydroxypent-3-en-2-one tautomers.
  • phenol-keto tautomerization A specific example of phenol-keto tautomerization is the interconversion of pyridin-4-ol and pyridin-4(lH)-one tautomers.
  • compositions thereof include pharmaceutically acceptable salts, and mixtures thereof.
  • “Pharmaceutically acceptable salts” include, but are not limited to salts with inorganic acids, such as hydrochlorate, phosphate, diphosphate, hydrobromate, sulfate, sulfmate, nitrate, and like salts; as well as salts with an organic acid, such as malate, maleate, fumarate, tartrate, succinate, citrate, acetate, lactate, methanesulfonate, p-toluenesulfonate, 2- hydroxyethylsulfonate, benzoate, salicylate, stearate, and alkanoate such as acetate, HOOC- (CH 2 ) n -COOH where n is 0-4, and like salts.
  • inorganic acids such as hydrochlorate, phosphate, diphosphate, hydrobromate, sulfate, sulfmate, nitrate, and like salts
  • an organic acid such as malate, maleate, fumarate,
  • pharmaceutically acceptable cations include, but are not limited to sodium, potassium, calcium, aluminum, lithium, and ammonium.
  • the free base can be obtained by basifying a solution of the acid salt.
  • an addition salt, particularly a pharmaceutically acceptable addition salt may be produced by dissolving the free base in a suitable organic solvent and treating the solution with an acid, in accordance with conventional procedures for preparing acid addition salts from base compounds.
  • Those skilled in the art will recognize various synthetic methodologies that may be used to prepare non-toxic pharmaceutically acceptable addition salts.
  • the compounds disclosed and/or described herein can be enriched isotopic forms, e.g., enriched in the content of 2 H, 3 H, U C, 13 C and/or 14 C.
  • the compound contains at least one deuterium atom.
  • deuterated forms can be made, for example, by the procedure described in U.S. Patent Nos. 5,846,514 and 6,334,997.
  • deuterated compounds may improve the efficacy and increase the duration of action of compounds disclosed and/or described herein.
  • Deuterium substituted compounds can be synthesized using various methods, such as those described in: Dean, D., Recent Advances in the Synthesis and Applications of Radiolabeled Compounds for Drug Discovery and
  • Radiolabeled Compounds via Organometallic Intermediates Tetrahedron, 1989, 45(21), 6601-21; and Evans, E., Synthesis of radiolabeled compounds, J. Radioanal. Chem., 1981, 64(1-2), 9-32.
  • group As used herein the terms "group”, “radical” or “fragment” are synonymous and are intended to indicate functional groups or fragments of molecules attachable to a bond or other fragments of molecules.
  • an active agent is used to indicate a substance which has biological activity.
  • an “active agent” is a substance having pharmaceutical utility.
  • an active agent may be an anti-metastasis therapeutic.
  • a therapeutically effective amount means an amount effective, when administered to a human or non-human subject, to provide a therapeutic benefit such as amelioration of symptoms, slowing of disease progression, or prevention of disease, or to inhibit fascin activity in vitro or in vivo, e.g., a therapeutically effective amount may be an amount sufficient to decrease the symptoms of a disease responsive to inhibition of fascin activity.
  • “Inhibition of fascin activity” refers to a decrease in fascin activity as a direct or indirect response to the presence of at least one compound, or pharmaceutically acceptable salt thereof, described herein, relative to the activity of fascin in the absence of the at least one compound, or pharmaceutically acceptable salt thereof, described herein. The decrease in activity may be due to the direct interaction of the at least one compound, or
  • the compound, or pharmaceutically acceptable salt thereof, described herein has an IC 50 (the concentration that inhibits 50 % of fascin acitivity) value of about 500 micromolar, about 100 micromolar, about 10 micromolar, about 1 micromolar, about 500 nanomolar, about 400 nanomolar, about 300 nanomolar, about 200 nanomolar, about 100 nanomolar, about 50 nanomolar, about 10 nanomolar, of less than about 10 nanomolar, or a range between and including any two of these values.
  • IC 50 the concentration that inhibits 50 % of fascin acitivity
  • a "disease responsive to inhibition of fascin activity” is a disease in which inhibiting fascin provides a therapeutic benefit such as an amelioration of symptoms, decrease in disease progression, prevention or delay of disease onset, prevention or amelioration of an inflammatory response, or inhibition of aberrant activity and/or death of certain cell-types (such as cancer cells).
  • Treatment means any treatment of a disease in a patient, including: a) preventing the disease, that is, causing the clinical symptoms of the disease not to develop;
  • Subject or “patient' refers to an animal, such as a mammal, that has been or will be the object of treatment, observation or experiment.
  • the methods described herein may be useful in both human therapy and veterinary applications.
  • the subject is a mammal; and in some embodiments the subject is human.
  • cancer includes solid mammalian tumors as well as hematological malignancies.
  • tumor cell(s) and cancer cell(s)” are used interchangeably herein.
  • Solid mammalian tumors include cancers of the head and neck, lung,
  • mesothelioma mediastinum, esophagus, stomach, pancreas, hepatobiliary system, small intestine, colon, colorectal, rectum, anus, kidney, urethra, bladder, prostate, urethra, penis, testis, gynecological organs, ovaries, breast, endocrine system, skin, central nervous system; sarcomas of the soft tissue and bone; and melanoma of cutaneous and intraocular origin.
  • hematological malignancies includes childhood leukemia and lymphomas, Hodgkin's disease, lymphomas of lymphocytic and cutaneous origin, acute and chronic leukemia, plasma cell neoplasm and cancers associated with AIDS.
  • nM nanomolar
  • EDTA ethylenediaminetetraacetic acid
  • a 1 , A 2 , A 3 , A 4 , A 5 and A 6 are independently CH, CR 3 or N, provided that no more than four of A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are N;
  • R 1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 6 ;
  • L 2 is selected from the group consisting of -NR 8 -, -C(0)NR 8 -, -NR 8 C(0)- , -C(0)CR 8 2-, -CR 8 2 C(0)-, -NR 8 CR 8 2-, and -CR 8 2 NR 8 -;
  • R 2 is hydrogen, lower alkyl, 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R', -CONR lu R , -OCOR', -OC0 2 R', -OCONR lu R , -NR 1U C0R ⁇ -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • q 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl), lower haloalkyl, and -CH 2 OH;
  • R 7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl
  • R 8 is hydrogen or lower alkyl (such as methyl or ethyl);
  • each R 10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
  • R 11 is hydrogen or R 3 ;
  • the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
  • Formula I Formula la Formula lb or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
  • a 1 , A 2 , A 3 , A 4 , A 5 and A 6 are independently CH, CR 3 or N, provided that no more than four of A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are N;
  • R 1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 6 ;
  • L 2 is selected from the group consisting of -C(0)NR 8 -, -NR 8 C(0)- , -C(0)CR 8 2 -,
  • R 2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 ,
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • q 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl), lower haloalkyl, and -CH 2 OH;
  • R 7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl
  • R 8 is hydrogen or lower alkyl (such as methyl or ethyl);
  • each R 10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
  • R 11 is hydrogen or R 3 ;
  • the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
  • R 8 is hydrogen. In some embodiments, q is 1.
  • R 1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 6 ;
  • L 2 is selected from the group consisting of -C(0)NH-, -NHC(O)-, -C(0)CH 2 - , -CH 2 C(0)-, -NHCH 2 -, and -CH 2 NH-;
  • R 2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 ,
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 10 , -NR 10 CO 2 R 10 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • n 0, 1, 2 or 3;
  • q 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of halo, cyano, lower alkyl (preferably methyl or ethyl) and lower haloalkyl;
  • R 7 is lower alkyl (preferably methyl or ethyl) or lower haloalkyl; and each R 10 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
  • the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
  • a compound of Formula Ilia, Illb, IIIc or Hid is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
  • Formula Ilia Formula Illb Formula IIIc Formula Hid or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
  • R 2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 ,
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • n 0, 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of halo, cyano, lower alkyl (preferably methyl or ethyl) and lower haloalkyl;
  • R 7 is lower alkyl (preferably methyl or ethyl).
  • each R 10 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring; provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
  • R 2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 ,
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R', -CONR lu R , -OCOR', -OC0 2 R', -OCONR lu R , -NR lu COR , -NR 10 CO 2 R 10 , -SOR 7 , -S0 2 R 7 , -SO 2
  • n 0, 1, 2 or 3;
  • R is lower alkyl (preferably methyl or ethyl).
  • each R is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
  • the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
  • the present technology provides intermediate compounds for the preparation of compounds of Formula I or tautomer thereof, and/or a pharmaceutically acceptable salt thereof.
  • the intermediate compounds are of any o of the following Formulas
  • a 1 , A 2 , A 3 , A 4 , A 5 and A 6 are independently CH, CR 3 or N, provided that no more than four of A 1 , A 2 , A 3 , A 4 , A 5 and A 6 are N;
  • a 7 is NH or CH 2 ;
  • Y is F, CI, Br or I
  • R 1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 6 ;
  • R 2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 ,
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 ;
  • n 0, 1, 2 or 3;
  • q 1, 2 or 3;
  • each R 6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl) and lower haloalkyl;
  • R 7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl
  • R 11 is hydrogen or R 3 ;
  • each R 10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R 10 together with the atom(s) attached thereto form a 4- to 6-membered ring.
  • the present technology provides compounds of Formula VIII, Villa or Vlllb:
  • L 2 is selected from the group consisting of -NR 8 -, -C(0)NR 8 -, -NR 8 C(0)-, -C(0)CR 8 2-, -CR 8 2 C(0)-, -NR 8 CR 8 2-, and -CR 8 2 NR 8 -;
  • R 2a is hydrogen, or -NHC(0)R 2 , wherein R 2 is lower alkyl, 6-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10- membered heteroaryl is optionally substituted with 1 to 4 R 4 , wherein each R 4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO
  • each R 3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 7 , -SH, -SR 7 , -NR 10 R 10 , halo, cyano, nitro, -COH, -COR 7 , -C0 2 H, -C0 2 R 7 , -CONR 10 R 10 , -OCOR 7 , -OC0 2 R 7 , -OCONR 10 R 10 , -NR 10 COR 7 , -NR 10 CO 2 R 7 , -SOR 7 , -S0 2 R 7 , -SO 2 NR 10 R 10 , and -NR 10 SO 2 R 7 .
  • L 2 is -C(0)NH-, -C(0)CH 2 -, or -CH 2 NH-.
  • a 1 is N and A 2 , A 3 , A 4 , A 5 and A 6 are independently CH or CR 3 .
  • a 2 is N and A 1 , A 3 , A 4 , A 5 and A 6 are independently CH or CR 3 .
  • A is N and A , A , A , A and A are independently CH or CR .
  • A is N and A , A , A and A are independently CH or CR . In some embodiments, A is N and A , A , A , A and A are independently CH or CR . In some embodiments,
  • A is N and A , A , A , and A are independently CH or CR .
  • a 6 is N and A 1 , A 2 , A 3 , A 4 , and A 5 are independently CH or CR 3 .
  • a 1 and A 2 are N.
  • a 3 , A 4 , A 5 and A 6 are independently CH or CR 3 .
  • a 3 is N, and A 4 , A 5 and A 6 are independently CH or CR 3 .
  • a 4 is N and A 3 , A 5 and A 6 are independently CH or CR 3 .
  • a 5 is N, and A 3 , A 4 and A 6 are independently CH or CR 3 .
  • a 6 is N, and A 3 , A 4 , and A 5 are independently CH or CR 3 .
  • a 3 and A 4 are N, and A 5 and A 6 are independently CH or CR 3 .
  • a 3 and A 5 are N, and A 4 and A 6 are independently CH or CR 3 .
  • a 3 and A 6 are N, and A 4 and A 5 are independently CH or CR 3 .
  • a 4 and A 5 are N, and A 3 and A 6 are independently CH or CR 3 .
  • a 4 and A 6 are N, and A 3 and A 6 are independently CH or CR 3 .
  • a 4 and A 6 are N, and A 3 and A 5 are independently CH or CR 3 .
  • a 5 and A 6 are N, and A 3 and A 4 are independently CH or CR 3 .
  • a 1 and A 3 are N.
  • a 2 , A 4 , A 5 and A 6 are independently CH or CR 3 .
  • a 4 is N, and A 2 , A 5 and A 6 are independently CH or CR 3 .
  • a 5 is N and A 2 , A 4 and A 6 are independently CH or CR 3 .
  • a 6 is N, and A 2 , A 4 and A 5 are independently CH or CR 3 .
  • a 2 and A 4 are N, and A 5 and A 6 are independently CH or CR 3 .
  • a 2 and A 5 are N, and A 4 and A 6 are independently CH or CR 3 .
  • a 2 and A 5 are N, and A 4 and A 6 are independently CH or CR 3 .
  • a 2 and A 6 are N, and A 4 and A 5 are independently CH or CR 3 . In some embodiments, A 4 and A 5 are N, and A 2 and A 6 are independently CH or CR 3 . In some embodiments, A 4 and A 6 are N, and A 2 and A 5 are independently CH or CR 3 . In some embodiments, A 5 and A 6 are N, and A 2 and A 4 are independently CH or CR 3 .
  • a 1 and A 4 are N.
  • a 2 , A 3 , A 5 and A 6 are independently CH or CR 3 .
  • a 3 is N, and A 2 , A 5 and A 6 are independently CH or CR 3 .
  • a 5 is N and A 2 , A 3 and A 6 are independently CH or CR 3 .
  • a 6 is N, and A 2 , A 3 and A 5 are independently CH or CR 3 .
  • a 2 and A 3 are N, and A 5 and A 6 are independently CH or CR 3 .
  • a 2 and A 5 are independently CH or CR 3 .
  • a 2 and A 5 are N, and A 3 and A 6 are independently CH or CR 3 .
  • a 2 and A 5 are N, and A 3 and A 6 are independently CH or CR 3 .
  • a 2 and A 6 are N, and A 3 and A 5 are independently CH or CR 3 . In some embodiments, A 3 and A 5 are N, and A 2 and A 6 are independently CH or CR 3 . In some embodiments, A 3 and A 6 are N, and A 2 and A 5 are independently CH or CR 3 . In some embodiments, A 5 and A 6 are N, and A 2 and A 3 are independently CH or CR 3 .
  • a 1 and A 5 are N.
  • a 2 , A 4 , A 3 and A 6 are independently CH or CR 3 .
  • a 4 is N, and A 2 , A 3 and A 6 are independently CH or CR 3 .
  • a 3 is N and A 2 , A 4 and A 6 are
  • a 6 is N, and A 2 , A 4 and A 3 are independently CH or CR 3 . In some embodiments, A 2 and A 4 are N, and A 3 and A 6 are independently CH or CR 3 . In some embodiments, A 2 and A 3 are N, and A 4 and A 6 are independently CH or CR 3 . In some embodiments, A 2 and A 6 are N, and A 4 and A 3 are independently CH or CR 3 . In some embodiments, A 4 and A 3 are N, and A 2 and A 6 are independently CH or CR 3 . In some embodiments, A 4 and A 3 are N, and A 2 and A 6 are independently CH or CR 3 . In some embodiments, A 4 and A 6 are N, and A 2 and A 3 are independently CH or CR 3 . In some embodiments, A 3 and A 6 are N, and A 2 and A 3 are independently CH or CR 3 . In some embodiments, A 3 and A 6 are N, and A 2 and A 4 are independently CH or CR 3 . In some embodiments, A
  • a 1 and A 6 are N.
  • a 2 , A 4 , A 5 and A 3 are independently CH or CR 3 .
  • a 4 is N, and A 2 , A 5 and A 3 are independently CH or CR 3 .
  • a 5 is N and A 2 , A 4 and A 3 are
  • a 3 is N, and A 2 , A 4 and A 5 are independently CH or CR 3 . In some embodiments, A 2 and A 4 are N, and A 5 and A 3 are independently CH or CR 3 . In some embodiments, A 2 and A 5 are N, and A 4 and A 3 are independently CH or CR 3 . In some embodiments, A 2 and A 3 are N, and A 4 and A 5 are independently CH or CR 3 . In some embodiments, A 4 and A 5 are N, and A 2 and A 3 are independently CH or CR 3 . In some embodiments, A 4 and A 5 are N, and A 2 and A 3 are independently CH or CR 3 . In some embodiments, A 4 and A 3 are N, and A 2 and A 5 are independently CH or CR 3 . In some embodiments, A 5 and A 3 are N, and A 2 and A 4 are independently CH or CR 3 . In some embodiments, A 5 and A 3 are N, and A 2 and A 4 are independently CH or CR 3 . In some embodiments, A
  • a 2 is N.
  • a 1 is CH or CR 3 .
  • a 3 , A 4 , A 5 and A 6 are independently CH or CR 3 .
  • a 3 is N, and A 4 , A 5 and A 6 are independently CH or CR 3 .
  • a 4 is N and A 3 , A 5 and A 6 are independently CH or CR 3 .
  • a 5 is N, and A 3 , A 4 and A 6 are independently CH or CR 3 .
  • a 6 is N, and A 3 , A 4 , and A 5 are independently CH or CR 3 .
  • a 3 and A 4 are N, and A 5 and A 6 are independently CH or CR 3 . In some embodiments, A 3 and A 5 are N, and A 4 and A 6 are independently CH or CR 3 . In some embodiments, A 3 and A 6 are N, and A 4 and A 5 are independently CH or CR 3 . In some embodiments, A 4 and A 5 are N, and A 3 and A 6 are independently CH or CR 3 . In some embodiments, A 4 and A 6 are N, and A 3 and A 5 are independently CH or CR 3 . In some embodiments, A 5 and A 6 are N, and A 3 and A 4 are independently CH or CR 3 .
  • R 1 is phenyl. In some embodiments, R 1 is
  • R 1 is 4-trifluoromethylphenyl. In some embodiments, R 1 is 4-fluorophenyl. In some embodiments, R 1 is 4-chlorophenyl. In some embodiments, R 1 is 4-methylphenyl. In some embodiments, R 1 is pyridyl optionally substituted with 1 to 3 R 6 .
  • R 2 is phenyl optionally substituted with 1 to 4 R 4 .
  • R 2 is 5-membered heteroaryl optionally substituted with 1 to 4 R 4 .
  • R 2 is 6-membered heteroaryl optionally substituted with 1 to 4 R 4 .
  • R 2 is phenyl substituted with 2 R 4 .
  • R 2 is 5-membered heteroaryl substituted with 2 R 4 .
  • R 2 is 6-membered heteroaryl substituted with 2 R 4 .
  • R 2 is phenyl substituted with 1 R 4 .
  • R 2 is 5-membered heteroaryl substituted with 1 R 4 .
  • R 2 is 6-membered heteroaryl substituted with 1 R 4 .
  • R 2 is phenyl, chlorophenyl, methyl furan, In some embodiments, R 2 is selected from the group consisting of thiophene, thiazole, isoxazole, oxazole, 1,2,5-oxadiazole, pyrazole, pyrimidine and pyridazine, which are optionally substituted with methyl. , In some embodiments, R 2 is pyridazine, isoxazole or oxazole.
  • R 2 is 5- or 6-membered heteroaryl optionally substituted with 1 to 4 R 4 , wherein the heteroaryl comprises two heteroatoms selected from N, O and S. In some embodiments, R 2 is 5- or 6-membered heteroaryl optionally substituted with 1 to 4 R 4 , wherein the heteroaryl comprises two heteroatoms selected from N and S.
  • R 2 is phenyl
  • R 2 is selected from the group consisting of:
  • R 2 is 3 , ⁇ ⁇ " ⁇ or ⁇ N J.
  • R 2 is ethyl or isopropyl.
  • R is
  • R 2 is R 5 optionally substituted with 1 to 4 R 4 , wherein R 5 is selected from the group consisting of furan, benzofuran, pyridine, pyridazine, pyrimidine, pyrazine, thiophene, thiazole, isothiazole, oxazole, isoxazole, oxadiazole, imidazole, pyrrole, and pyrazole.
  • R 2 is R 5 substituted with 1 R 4 .
  • R 5 is selected from the group consisting of furan, benzofuran, pyridine, pyridazine, pyrimidine, pyrazine, thiophene, thiazole, isothiazole, oxazole, isoxazole, oxadiazole, imidazole, pyrrole, and pyrazole.
  • R is R substituted with 2 R . In some embodiments, R is R substituted with 3 R . In some embodiments, R 2 is R 5 substituted with 4 R 4 .
  • R 4 is selected from the group consisting of lower alkyl (such as methyl), halo, lower haloalkyl, -OH, -OR 7 , cyano and phenyl optionally substituted methyl, wherein R 7 is lower alkyl or lower haloalkyl.
  • m is 0. In some embodiments, m is 1. In some embodiments, R 3 is halo. In some embodiments, R 3 is lower alkyl.
  • n is 1.
  • R 6 is trifluoromethyl. In some embodiments, R 6 is fluoro. In some embodiments, R 6 is chloro. In some embodiments, R 6 is methyl. In some embodiments R 6 is cyano. In some embodiments, R 6 is 4-trifiuoromethyl. In some embodiments, R 6 is 4- fiuoro. In some embodiments, R 6 is 4-chloro. In some embodiments, R 6 is 4-methyl. In some embodiments, R 6 is 4-cyano.
  • the compound is selected from:
  • the compound is selected from:
  • the present technology provides a compound selected from Table 2 or a tautomer, and/or pharmaceutically acceptable salt thereof:
  • the compound is not a compound of Formula I-j :
  • R 21 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 16 ;
  • L 11 is selected from the group consisting -(C(R 18 ) 2 ) j -,
  • q is 0 or 1 ;
  • r is 0 or 1 ;
  • L 12 is selected from the group consisting a covalent bond, -C(0)N(R 18 )-, -N(R 18 )C(0)-, -N(R 18 )S(0) 2 -, and -S(0) 2 N(R 18 )-;
  • R 15 is phenyl, 5-membered heteroaryl, 6-membered heteroaryl, 5-membered heterocycloalkyl or 6-membered heterocycloalkyl; wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 4 R 12 , wherein each R 12 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR 17 , -SH, -SR 17 , -NR 20 R 20 , halo, cyano, nitro, -COH, -COR 17 , -C0 2 H, -C0 2 R 17 , -CONR 20 R 20 , -OCOR 17 , -OC0 2 R 17 , -OCONR 20 R 20 , -NR 20 COR 20 , -NR 20 CO 2 R 20 , -SOR 17 , -S0 2 R 17 , -SO 2 NR 20 R
  • R 17 is lower alkyl (preferably methyl or ethyl);
  • R 18 is hydrogen or lower alkyl (preferably methyl or ethyl).
  • each R 20 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R 20 together with the atom(s) attached thereto form a 4- to 6-membered heterocycloalkyl ring.
  • the compound is not a compound of Formula I-j:
  • R 21 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R 16 ;
  • L 11 is selected from the group consisting -C(R 18 ) 2 -, -S-, -O- and -NR 18 -;
  • L 12 is selected from the group consisting a covalent bond, -C(0)N(R 18 )-, -N(R 18 )C(0)-, -N(R 18 )S(0) 2 -, and -S(0) 2 N(R 18 )-;
  • R 15 is phenyl, 5-membered heteroaryl, 6-membered heteroaryl, 5-membered heterocycloalkyl or 6-membered heterocycloalkyl; wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 4 R 12 , wherein each R 12 is independently selected from the group consisting of lower alkyl, lower haloalkyl, OH, OR 17 , SH, SR 17 , NR 20 R 20 , halo, cyano, nitro, COH, COR 17 , C0 2 H, -C0 2 R 17 , CONR 20 R 20 , OCOR 17 , OC0 2 R 17 , OCONR 20 R 20 , NR 20 COR 20 , -NR 20 CO 2 R 20 , -SOR 17 , S0 2 R 17 , -SO 2 NR 20 R 20 , and NR 20 SO 2 R 17 ;
  • each R 16 is independently selected from the group consisting of halo and lower alkyl (preferably methyl or ethyl) optionally substituted with 1-3 halo;
  • R , 17 i ⁇ s lower alkyl preferably methyl or ethyl
  • R 18 is hydrogen or lower alkyl (preferably methyl or ethyl)
  • each R 20 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R 20 together with the atom(s) attached thereto form a 4- to 6-membered ring.
  • the present technology provides a method of treating a condition or disorder mediated by fascin activity in a subject in need thereof which method comprises administering to the subject a therapeutically effective amount of a compound described herein.
  • the present technology provides a method of inhibiting fascin activity, comprising administering an effective amount of a fascin inhibitor to a cell to thereby inhibit fascin activity in the cell, wherein the fascin inhibitor is a compound described herein.
  • the fascin inhibitor has a fascin inhibition IC 50 of no more than 100 ⁇ .
  • the fascin inhibitor has a fascin inhibition IC 50 of no more than 50 ⁇ .
  • the fascin inhibitor has a fascin inhibition IC 50 of no more than 20 ⁇ .
  • the fascin inhibitor has a fascin inhibition IC 50 of no more than 8 ⁇ .
  • the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage.
  • the condition or disorder is a metastatic cancer.
  • the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer.
  • the cancer is lung cancer, breast cancer or prostate cancer.
  • the present technology provides is a method of inhibiting fascin activity, comprising administering an effective amount of a fascin inhibitor to a cell to thereby inhibit fascin activity in the cell, wherein the fascin inhibitor is a compound described herein.
  • the cell is in an animal.
  • the cell has been removed from an animal.
  • the animal is a human.
  • the human suffers from a disease or condition.
  • the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage.
  • the condition or disorder is a metastatic cancer.
  • the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer.
  • the cancer is lung cancer, breast cancer, or prostate cancer.
  • fascin can be used to treat a variety of diseases and conditions.
  • fascin promotes actin bundling and plays a key role in cell migration and metastasis of cancer cells.
  • modulators and inhibitors of fascin can be used to treat and inhibit metastatic cancer.
  • fascin also plays a role in other diseases and conditions. For example, neurite shape and trajectory is modulated by fascin (Kraft et al, Phenotypes of Drosophila brain neurons in primary culture reveal a role for fascin in neurite shape and trajectory, J. Neurosci, 26(34):8734-47 (2006)). Fascin is also involved in neuronal degeneration (Fulga et al, Abnormal bundling and accumulation of F-actin mediates tau-induced neuronal degeneration in vivo Nat Cell Biol. 9(2): 139-48 (2007)).
  • fascin plays a role in Hodgkin's disease (Pinkus et al, Fascin, a sensitive new marker for Reed-Sternberg cells of Hodgkin's disease, Am J Pathol. 150(2):543-562 (1997)). Fascin also plays a role in processing and presenting antigens, for example, on antigen presenting cells (Mosialos et al, Circulating human dendritic cells differentially express high levels of a 55-kd actin-bundling protein. Am. J. Pathol.
  • fascin also plays a role in ischemic injury (Meller et al, Ubiquitin proteasome-mediated synaptic reorganization: a novel mechanism underlying rapid ischemic tolerance, J Neurosci. 28(l):50-9 (2008)).
  • agents that modulate fascin activity are provided herein and that can be used for methods of treating and inhibiting metastatic cancer, neuronal disorders, neuronal degeneration, inflammatory conditions, viral infections, bacterial infections, lymphoid hyperplasia, Hodgkin's disease, and ischemia-related tissue damage.
  • Tumor metastasis is the major cause of death of cancer patients (Weiss 2000, Fidler 2003). Thus, inhibition or prevention of tumor metastasis will significantly increase the survival rate of cancer patients, allow more moderate radiation or chemotherapy with less side-effects, and control the progression of solid tumors.
  • Fascin is the primary actin cross-linker in filopodia, which are membrane protrusions critical for the migration and metastasis of cancer cells. Fascin is required to maximally cross-link the actin filaments into straight, compact, and rigid bundles. Elevated expressions of fascin m NA and protein in cancer cells have been correlated with aggressive clinical course, poor prognosis and shorter survival. Accordingly, metastatic cancer can be treated, prevented and/or inhibited by administering fascin inhibitors as described herein.
  • a cancer at any stage of progression can be treated by the method of the present technology, such as primary, metastatic, and recurrent cancers.
  • a cancer at any stage of progression can be treated by the method of the present technology, such as primary, metastatic, and recurrent cancers.
  • cancers are treated before metastasis is detected, for example, to inhibit metastatic cancer from developing. In other embodiments, cancers are treated when metastasis is detected, for example, to inhibit further metastasis and progression of the cancer.
  • Compounds described herein, or pharmaceutically acceptable salts thereof, can also be used to treat autoimmune deficiency syndrome-associated Kaposi's sarcoma, cancer of the adrenal cortex, cancer of the cervix, cancer of the endometrium, cancer of the esophagus, cancer of the head and neck, cancer of the liver, cancer of the pancreas, cancer of the prostate, cancer of the thymus, carcinoid tumors, chronic lymphocytic leukemia, Ewing's sarcoma, gestational trophoblastic tumors, hepatoblastoma, multiple myeloma, non-small cell lung cancer, retinoblastoma, or tumors in the ovaries.
  • a cancer at any stage of progression can be treated or detected, such as primary, metastatic, and recurrent cancers.
  • Information regarding numerous types of cancer can be found, e.g., from the American Cancer Society (www.cancer.org), or from, e.g., Wilson et al. (1991) Harrison's Principles of Internal Medicine, 12th Edition, McGraw-Hill, Inc.
  • method for treating or inhibiting metastatic cancer in an animal, for example, for human and veterinary uses, which include administering to a subject animal ⁇ e.g., a human), a therapeutically effective amount of a compound described herein, or pharmaceutically acceptable salt thereof.
  • a subject animal e.g., a human
  • a therapeutically effective amount of a compound described herein, or pharmaceutically acceptable salt thereof In some embodiments, the cell has been removed from an animal.
  • Treatment of, or treating, a disease or condition is intended to include the alleviation of or diminishment of at least one symptom typically associated with the disease or condition.
  • the treatment also includes alleviation or diminishment of more than one symptom of the disease or condition.
  • the treatment may cure the disease or condition, for example, by eliminating the symptoms and/or the source of the disease or condition.
  • treatment can cure the cancer by substantially inhibiting metastasis of the cancer cells so that removal or killing of the primary tumor or cancer cell(s) substantially eliminates the cancer.
  • Treatment can also arrest or inhibit the metastasis of the cancer and/or tumor cells without directly killing or promoting the apoptosis of cancer cells.
  • actin bundling function of fascin is directly involved in tumor metastasis and invasive growth.
  • the anti-metastatic activity of fascin can be evaluated against varieties of cancers using methods described herein and available to one of skill in the art.
  • Anti-cancer activity for example, can be determined by identifying the dose that inhibits 50% cancer cell metastasis (IC 50 ) of a compound or composition as described herein.
  • a method for evaluating a therapeutically effective dosage for treating a cancer ⁇ e.g. , inhibiting metastasis) with a compound described herein, or pharmaceutically acceptable salt thereof, that includes determining the IC 50 of the agent in vitro.
  • a method permits calculation of the approximate amount of agent needed per volume to inhibit cancer cell migration.
  • Such amounts can be determined, for example, by standard microdilution methods.
  • the compound or composition as described herein can be administered in multiple doses over an extended period of time, or intermittently.
  • the compounds ⁇ e.g., fascin inhibitors) as described herein can be formulated as pharmaceutical compositions and administered to a mammalian host, such as a human patient in a variety of forms adapted to the chosen route of administration, i.e., orally or parenterally, by intravenous, intramuscular, topical, transdermally, intrathecally, ocularly, intranasally, intraperitoneally or subcutaneous routes.
  • a mammalian host such as a human patient in a variety of forms adapted to the chosen route of administration, i.e., orally or parenterally, by intravenous, intramuscular, topical, transdermally, intrathecally, ocularly, intranasally, intraperitoneally or subcutaneous routes.
  • the compounds ⁇ e.g., fascin inhibitors) described herein may be systemically administered, e.g., orally, in combination with a pharmaceutically acceptable vehicle such as an inert diluent or an assimilable edible carrier. They may be enclosed in hard or soft shell gelatin capsules, may be compressed into tablets, or may be incorporated directly with the food of the patient's diet.
  • a pharmaceutically acceptable vehicle such as an inert diluent or an assimilable edible carrier.
  • the active compound may be combined with one or more excipients and used in the form of ingestible tablets, buccal tablets, troches, capsules, elixirs, suspensions, syrups, wafers, and the like.
  • compositions and preparations should contain at least 0.1% of active compound.
  • the percentage of the compositions and preparations may, of course, be varied and may conveniently be between about 2 to about 60% of the weight of a given unit dosage form.
  • the amount of active compound in such therapeutically useful compositions is such that an effective dosage level will be obtained.
  • the tablets, troches, pills, capsules, and the like may also contain the following: binders such as gum tragacanth, acacia, corn starch or gelatin; excipients such as dicalcium phosphate; a disintegrating agent such as corn starch, potato starch, alginic acid and the like; a lubricant such as magnesium stearate; and a sweetening agent such as sucrose, fructose, lactose or aspartame or a flavoring agent such as peppermint, oil of wintergreen, or cherry flavoring may be added.
  • a liquid carrier such as a vegetable oil or a polyethylene glycol.
  • the active compounds described herein may also be administered intravenously or intraperitoneally by infusion or injection.
  • Solutions of the active compound or its salts can be prepared in water, optionally mixed with a nontoxic surfactant.
  • Dispersions can also be prepared in glycerol, liquid polyethylene glycols, triacetin, and mixtures thereof and in oils. Under ordinary conditions of storage and use, these preparations contain a preservative to prevent the growth of microorganisms.
  • the pharmaceutical dosage forms suitable for injection or infusion can include sterile aqueous solutions or dispersions or sterile powders comprising the active ingredient which are adapted for the extemporaneous preparation of sterile injectable or infusible solutions or dispersions, optionally encapsulated in liposomes.
  • the ultimate dosage form should be sterile, fluid and stable under the conditions of manufacture and storage.
  • the liquid carrier or vehicle can be a solvent or liquid dispersion medium
  • glycerol for example, glycerol, propylene glycol, liquid polyethylene glycols, and the like
  • vegetable oils for example, glycerol, propylene glycol, liquid polyethylene glycols, and the like
  • suitable mixtures thereof for example, vegetable oils, nontoxic glyceryl esters, and suitable mixtures thereof.
  • the proper fluidity can be maintained, for example, by the formation of liposomes, by the maintenance of the required particle size in the case of dispersions or by the use of surfactants.
  • the prevention of the action of microorganisms can be brought about by various antibacterial and antifungal agents, for example, parabens, chlorobutanol, phenol, sorbic acid, thimerosal, and the like. In many cases, it will be preferable to include isotonic agents, for example, sugars, buffers or sodium chloride.
  • Prolonged absorption of the injectable compositions can be brought about by the use in the compositions of agents delaying absorption, for example, aluminum monostearate and gelatin.
  • Sterile injectable solutions are prepared by incorporating the active compound in the required amount in the appropriate solvent with several of the other ingredients enumerated above, as required, followed by filter sterilization.
  • the preferred methods of preparation are vacuum drying and the freeze drying techniques, which yield a powder of the active ingredient plus any additional desired ingredient present in the previously sterile-filtered solutions.
  • the present compounds may be applied in pure form, i.e., when they are liquids. However, it will generally be desirable to administer them to the skin as compositions or formulations, in combination with a dermatologically acceptable carrier, which may be a solid or a liquid.
  • Useful solid carriers include finely divided solids such as talc, clay, microcrystalline cellulose, silica, alumina and the like.
  • Useful liquid carriers include water, alcohols or glycols or water-alcohol/glycol blends, in which the present compounds can be dissolved or dispersed at effective levels, optionally with the aid of non-toxic surfactants.
  • Adjuvants such as fragrances and additional antimicrobial agents can be added to optimize the properties for a given use.
  • the resultant liquid compositions can be applied from absorbent pads, used to impregnate bandages and other dressings, or sprayed onto the affected area using pump-type or aerosol sprayers.
  • Thickeners such as synthetic polymers, fatty acids, fatty acid salts and esters, fatty alcohols, modified celluloses or modified mineral materials can also be employed with liquid carriers to form spreadable pastes, gels, ointments, soaps, and the like, for application directly to the skin of the user.
  • Examples of useful dermatological compositions which can be used to deliver the compounds described herein, or pharmaceutically acceptable salts thereof, to the skin are known to the art; for example, see Jacquet et al. (U.S. Pat. No. 4,608,392), Geria (U.S. Pat. No. 4,992,478), Smith et al. (U.S. Pat. No. 4,559,157) and Wortzman (U.S. Pat. No.
  • Useful dosages of the compounds described herein, or pharmaceutically acceptable salts thereof, can be determined by comparing their in vitro activity, and in vivo activity in animal models. Methods for the extrapolation of effective dosages in mice, and other animals, to humans are known to the art; for example, see U.S. Pat. No. 4,938,949.
  • a liquid composition such as a lotion
  • a liquid composition such as a lotion
  • a liquid composition such as a lotion
  • a liquid composition will be about 0.01 wt%, about 0.1 wt%, about 1.0 wt%, about 2.0 wt%, about 3.0 wt%, about 4.0 wt%, about 5.0 wt%, about 10.0 wt%, about 25.0 wt%, or a range between and including any two of these values.
  • the concentration in a semi-solid or solid composition such as a gel or a powder will be about 0.01 wt%, about 0.1 wt%, about 1.0 wt%, about 2.0 wt%, about 3.0 wt%, about 4.0 wt%, about 5.0 wt%, about 10.0 wt%, about 25.0 wt%, or a range between and including any two of these values.
  • the amount of the compound, or an active salt or derivative thereof, required for use in treatment will vary not only with the particular salt selected but also with the route of administration, the nature of the condition being treated and the age and condition of the patient and will be ultimately at the discretion of the attendant physician or clinician.
  • a suitable dose will be in the range of from about 1.0 to about 200 mg/kg, e.g., from about 1 to about 100 mg/kg of body weight per day, such as about 2.0 to about 100 mg/kg of body weight per day, such as about 3.0 to about 50 mg per kilogram body weight of the recipient per day, or in the range of about 5 to 20 mg/kg/day.
  • the compositions can be administered five times a week on five consecutive days with a two day rest, or four times a week on four consecutive days with a three day rest, or every other day.
  • compounds described herein, or pharmaceutically acceptable salts thereof, may be administered at dosage levels of about 0.01 mg/kg to about 300 mg/kg, from about 0.1 mg/kg to about 250 mg/kg, from about 1 mg/kg to about 200 mg/kg, from about 1 mg/kg to about 150 mg/kg, from about 1 mg/kg to about 100 mg/kg, from about 1 mg/kg to about 90 mg/kg, from about 1 mg/kg to about 80 mg/kg, from about 1 mg/kg to about 70 mg/kg, from about 1 mg/kg to about 60 mg/kg, from about 1 mg/kg to about 50 mg/kg, from about 1 mg/kg to about 40 mg/kg, from about 1 mg/kg to about 30 mg/kg, from about 1 mg/kg
  • compounds may be administered at a dosage of about 1 mg/kg or greater, 5 mg/kg or greater; 10 mg/kg or greater, 15 mg/kg or greater, 20 mg/kg or greater, 25 mg/kg or greater, 30 mg/kg or greater, 35 mg/kg or greater, 40 mg/kg or greater, 45 mg/kg or greater, 50 mg/kg or greater, 60 mg/kg or greater, 70 mg/kg or greater, of body weight. It will also be appreciated that dosages smaller than 0.01 mg/kg or greater than 70 mg/kg (for example 70-200 mg/kg) can be administered to a subject.
  • the compounds described herein may be used in any combination.
  • chemotherapy i.e., to inhibit metastasis
  • compounds to be used in chemotherapy may be administered from about 100 mg/kg to about 300 mg/kg, from about 120 mg/kg to about 280 mg/kg, from about 140 mg/kg to about 260 mg/kg, from about 150 mg/kg to about 250 mg/kg, from about 160 mg/kg to about 240 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect.
  • the compounds described herein may be used in supportive therapy (e.g., as an adjuvant to surgery or irradiation in a range of common types of tumor) and may be administered at lower dosage.
  • supportive therapy e.g., as an adjuvant to surgery or irradiation in a range of common types of tumor
  • compounds to be used in supportive therapy may be administered from about 1 mg/kg to about 30 mg/kg, from about 1 mg/kg to about 25 mg/kg, from about 5 mg/kg to about 20 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect.
  • the compounds described herein may be used for treating metastatic cancer (e.g., ovarian and/or colon cancer) and may be administered at an intermediate dosage.
  • compounds to be used in supportive therapy may be administered from about 1 mg/kg to about 100 mg/kg, from about 1 mg/kg to about 80 mg/kg, from about 5 mg/kg to about 70 mg/kg, from about 10 mg/kg to about 70 mg/kg, from about 10 mg/kg to about 60 mg/kg, from about 20 mg/kg to about 70 mg/kg, from about 20 mg/kg to about 60 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect.
  • the compound is conveniently administered in unit dosage form; for example, containing 45 to 3000 mg, conveniently 90 to 2250 mg, most conveniently, 450 to 1500 mg of active ingredient per unit dosage form. In some embodiments, the compound is administered at dosages of about 1 to about 100 mg/kg.
  • the active ingredient should be administered to achieve peak plasma concentrations of the active compound of from about 0.5 nM to about 10 ⁇ , or about 1 nM to 1 ⁇ , or about 10 nM to about 0.5 ⁇ . This may be achieved, for example, by the intravenous injection of a 0.05 to 5% solution of the active ingredient, optionally in saline, or orally administered as a bolus containing about 20-2000 mg of the active ingredient.
  • Desirable blood levels may be maintained by continuous infusion to provide about 0.2 to 1.0 mg/kg/hr or by intermittent infusions containing about 0.4 to 20 mg/kg of the active ingredient(s).
  • the desired dose may conveniently be presented in a single dose or as divided doses administered at appropriate intervals, for example, as two, three, four or more sub- doses per day.
  • the sub-dose itself may be further divided, e.g., into a number of discrete loosely spaced administrations; such as multiple inhalations from an insufflator or by application of a plurality of drops into the eye.
  • cancers described herein, or pharmaceutically acceptable salts thereof are useful as therapeutic agents administered for inhibition of cell migration and treatment of metastatic cancer.
  • Such cancers include but are not limited to, e.g., cancers involving the animal's head, neck, lung, mesothelioma, mediastinum, esophagus, stomach, pancreas, hepatobiliary system, small intestine, colon, colorectal, rectum, anus, kidney, ureter, bladder, prostate, urethra, penis, testis, gynecological organs, ovaries, breast, endocrine system, skin, or central nervous system.
  • the cancer can be a breast cancer, a leukemia, a lung cancer, a colon cancer, a central nervous system cancer, a melanoma, an ovarian cancer, a renal cancer, or a prostate cancer.
  • compounds described herein, or pharmaceutically acceptable salts thereof, such as the exemplary salts described herein, may be useful as pharmacological tools for the further investigation of the inhibition of cell migration.
  • the compounds described herein, or pharmaceutically acceptable salts thereof can also be administered in combination with other therapeutic agents that are effective for treating or controlling the spread of cancerous cells or tumor cells.
  • the compounds described herein, or pharmaceutically acceptable salts thereof can be tested in appropriate animal models.
  • the compounds described herein, or pharmaceutically acceptable salts thereof can be tested in animals with known tumors, or animals that have been injected with tumor cells into a localized area. The degree or number of secondary tumors that form over time is a measure of metastasis and the ability of the compounds to inhibit such metastasis can be evaluated relative to control animals that have the primary tumor but receive no test compounds.
  • protecting groups may be necessary to prevent certain functional groups from undergoing undesired reactions.
  • Suitable protecting groups for various functional groups as well as suitable conditions for protecting and deprotecting particular functional groups are well known in the art. For example, numerous protecting groups are described in T. W. Greene and G. M. Wuts, Protecting Groups in Organic Synthesis, Third Edition, Wiley, New York, 1999, and references cited therein.
  • the compounds described herein may contain one or more chiral centers. Accordingly, if desired, such compounds can be prepared or isolated as pure stereoisomers, i.e., as individual enantiomers or diastereomers, or as stereoisomer-enriched mixtures. All such stereoisomers (and enriched mixtures) are included within the scope of this invention, unless otherwise indicated. Pure stereoisomers (or enriched mixtures) may be prepared using, for example, optically active starting materials or stereoselective reagents well-known in the art. Alternatively, racemic mixtures of such compounds can be separated using, for example, chiral column chromatography, chiral resolving agents and the like.
  • the starting materials for the following reactions are generally known compounds or can be prepared by known procedures or obvious modifications thereof.
  • many of the starting materials are available from commercial suppliers such as Aldrich Chemical Co. (Milwaukee, Wisconsin, USA), Bachem (Torrance, California, USA),
  • Emka-Chemce or Sigma (St. Louis, Missouri, USA). Others may be prepared by procedures, or obvious modifications thereof, described in standard reference texts such as Fieser and Fieser's Reagents for Organic Synthesis, Volumes 1-15 (John Wiley and Sons, 1991), Rodd's Chemistry of Carbon Compounds, Volumes 1-5 and Supplemental (Elsevier Science Publishers, 1989), Organic Reactions, Volumes 1-40 (John Wiley and Sons, 1991), March's Advanced Organic Chemistry, (John Wiley and Sons, 4 th Edition), and Larock's
  • Characterization of these compounds may be performed using conventional methods such as by melting point, mass spectrum, nuclear magnetic resonance, and various other
  • Amide coupling reagents are known in the art and may include, but are not limited to, amininum and phosphonium based reagents.
  • Aminium salts include N-[(dimethylamino)- 1H- 1 ,2,3-triazolo[4,5-b]pyridine- 1 -ylmethylene]-N-methylmethanaminium
  • HATU hexafluorophosphate N-oxide
  • HBTU N-[(lH-benzotriazol-l- yl)(dimethylamino)methylene] -N-methylmethanaminium hexafluorophosphate N-oxide
  • HCTU N-[( 1 H-6-chlorobenzotriazol- 1 -yl)(dimethylamino)methylene] -N- methylmethanaminium hexafluorophosphate N-oxide
  • TBTU N-[(lH-6-chlorobenzotriazol-l-yl)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate N-oxide
  • TCTU N-[(lH-6-chlorobenzotriazol-l-yl)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate N-oxid
  • Phosphonium salts include 7-azabenzotriazol-l-yl-N- oxy-tris(pyrrolidino)phosphonium hexafluorophosphate (PyAOP) and benzotriazol-l-yl-N- oxy-tris(pyrrolidino)phosphonium hexafluorophosphate (PyBOP).
  • Amide formation step may be conducted in a polar solvent such as dimethylformamide (DMF) and may also include an organic base such as diisopropylethylamine (DIEA) or dimethylaminopyridine (DMAP).
  • DMF dimethylformamide
  • DIEA diisopropylethylamine
  • DMAP dimethylaminopyridine
  • compounds of Formula I can be prepared according to Scheme 1 or other methods described herein.
  • compounds of Formula Villa wherein R 3 is 4-chloro (Compound 3-2 or 3-3) from 4-chloro-lH-pyrazolo[3,4-c]pyridin-3-amine (Compound 3-1, available from, e.g., Novasyn Organics PVT. Ltd.) can be prepared according to Scheme 3 or other methods described herein.
  • Compounds of formula 2-4 are generally available from commercial sources or can prepared by methods known in the art.
  • BL21 Escherichia coli One liter of 2YT medium with ampicillin was inoculated overnight with 3 mL of BL21/DE3 culture transformed with pGEX4T-fascin 1 plasmid and grown at 37°C until attenuance at 600nm (D 6 oo) reached about 0.8. The culture was then transferred to 18°C and induced by the addition of 0.1 mM isopropyl ⁇ -d-thiogalactoside (IPTG) for 12h. Bacteria were harvested by centrifugation at 5,000 r.p.m. for 10 min.
  • IPTG isopropyl ⁇ -d-thiogalactoside
  • the pellets were suspended in 30 mL of PBS supplemented with 0.2 mM PMSF, 1 mM DTT, 1 % (v/v) Triton X-100 and 1 mM EDTA. After sonication, the suspension was centrifuged at 15,000 r.p.m. for 30 min to remove the cell debris. The supernatant was then incubated for 2 h with 4 mL of glutathione beads (Sigma) at 4°C. After extensive washing with PBS, the beads were resuspended in 10 mL of thrombin cleavage buffer (20 mM Tris-HCl pH 8.0, 150 mM NaCl, 2 mM CaCl 2 , 1 mM DTT).
  • Fascin was released from the beads by incubation overnight with 40-100 U of thrombin at 4°C. After centrifugation, 0.2 mM PMSF was added to the supernatant to inactivate the remnant thrombin activity. The fascin protein was further concentrated with a Centricon ® (Boca Raton, FL) filter to about 50 mg/mL.
  • the levels of fascin mRNA and protein can be determined by real-time PCR and Western blot, respectively.
  • samples from cancer patients were used for RNA isolation.
  • Oligonucleotide primers specific for fascin mRNA were used for PCR reactions.
  • Western blots samples from cancer patients were assessed with anti- fascin antibody. The intensity of the bands representing fascin proteins was quantified by image documentation and quantification software.
  • fascin inhibition activity Purified fascin protein (15 ⁇ . of 0.5 ⁇ ) in buffer (100 mM KC1, 20 mM Tris/HCl, pH 7.5, 2 mM MgCl 2 ) was added into each well of a clear 384-well flat-bottom plate
  • Boy den chamber assays for cell migration can be used to show the activity of the compounds described herein in inhibiting the migration of tumor cells, such as breast tumor cells, prostate tumor cells, and lung tumor cells. Certain tumor cells with fascin expression are listed below.
  • MDA-MB-231 cells (5 10 4 ) or 4T1 Cells (1 10 5 ) were suspended in 100 ⁇ starvation medium and added to the upper chamber of an insert (6.5 mm diameter, 8 ⁇ pore size; Becton Dickson). The insert was placed in a 24-well plate containing 700 starvation medium with or without 10% FBS. When used, inhibitors were added to the lower chamber. Migration assays were performed for 6 h and cells are fixed with 3.7%) formaldehyde. Cells were stained with crystal violet staining solution, and cells on the upper side of the insert were removed with a cotton swab. Three randomly selected fields ( x 10 objectives) on the lower side of the insert were photographed, and the migrated cells were counted. Migration was expressed as average number of migrated cells in a field.
  • Tumor cell migration is essential for tumor metastasis.
  • Representative compounds described herein were investigated their effects on tumor metastasis in an animal
  • Tumor cells (4T1 breast tumor cells) were injected into the mammary fat-pad of mice. The metastasis of these breast tumor cells from the mammary gland to the lung was monitored by the clonogenic assay.
  • Balb/c mice were purchased from Charles River. All animal procedures were approved by the Animal Care and Use Committees of the Weill Cornell Medical College and performed in accordance with institutional polices.
  • 5 x 10 5 4T1 cells were suspended in 100 ⁇ xL PBS and injected subcutaneously into the mammary glands of 6-8 week old female Balb/c mice. Tumor incidence was monitored for 21 days after injection. Tumor size was measured three times a week, and the volume was calculated using the formula length ⁇ width 2 ⁇ 0.5.
  • Compound treatment was initiated 7 days after tumor implantation; animals were administered daily with indicated dose for 2 weeks. On day 28, the mice were sacrificed.
  • lungs were removed from each mouse on day 28, finely minced and digested for 2 h at 37 °C in 5 mL of enzyme cocktail containing PBS and 1 mg/mL collagenase type IV on a rocker. After incubation, samples were filtered through 70- ⁇ nylon cell strainers and washed twice with PBS. Resulting cells were suspended, plated with a series of dilutions in 10-cm tissue culture dishes in RPMI-1640 medium containing 60 ⁇ thioguanine, metastasized tumor cells formed foci after 14 days, at which time they were fixed with methanol and stained with 0.03% methylene blue for counting. Data were expressed as mean ⁇ S.D. and analyzed by Student's t test with significance defined as p ⁇ 0.05.
  • human prostate tumor cells PC-3Luc cells stably transfected with luciferase gene
  • PBS Dulbecco phosphate-buffered saline
  • Ca 2+ and Mg 2+ Dulbecco phosphate-buffered saline
  • mice in group 1 receive daily testing compounds administered intraperitoneally (i.p.) in 0.2 mL of sterile physiological saline beginning 1 week before tumor cell inoculation.
  • group 2 untreated control
  • animals receive a daily 0.2 mL i.p. injection of the vehicle, sterile physiological saline.
  • Mice are serially imaged weekly for 5 weeks using an IVIS system (Xenogen Corp, Alameda, CA), and the results are analyzed using Living Image software (Xenogen).
  • mice are injected with luciferin (40 mg/mL) i.p., and ventral images are acquired 15 minutes after injection under 1.75% isoflurane/air anesthesia.
  • test compounds are useful for treating cancer, in particular, prostate tumor metastasis.
  • mice are divided into two groups, and 2 x 10 6 A549 human lung tumor cells are injected into each mouse via the tail vein.
  • One group is treated with a compound disclosed herein and another group is used as control.
  • the lungs are harvested, fixed, and embedded in paraffin.
  • the number of metastatic lung nodules is counted in serial histological sections stained with H&E.
  • the areas of metastatic lung nodules are measured in scanned images of the H&E-stained tumor sections using Paint.NET software. It is contemplated that the number and area of metastatic lung nodules in the treated animals are smaller than that of the untreated control animals.
  • the test compounds are useful for treating cancer, in particular, lung tumor metastasis.
  • Example 9 Treatment of Tumor Metastasis in Human
  • Human patients having metastatic breast cancer are administered intravenously with a fascin inhibitory compound disclosed herein or placebo in a randomized open-label trial.
  • the patients are separated into 5 groups. Patients in each group are administered a daily dosage of 0 mg (placebo), 100 mg, 200 mg, 500 mg, or 1000 mg of the compound, respectively, in 3 -week cycles.
  • the time to disease progression, overall response rate (OR ), duration of response, and overall survival (OS) rate are measured at the end of each cycle with known techniques. It is contemplated that patients administered with the fascin inhibitory compound have a longer mean or average time to disease progression and/or duration of response, a higher mean or average overall response rate and/or overall survival rate, than patients administered with placebo.
  • test compounds are useful for treating tumor metastasis in human.
  • Rho GTPases biochemistry and biology, Annu Rev Cell Dev Biol 27, 247-269.
  • Fascin an actin- bundling protein associated with cell motility, is upregulated in hormone receptor negative breast cancer, Br J Cancer 83, 870-873.

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Abstract

Provided are compounds, compositions and methods for inhibiting fascin activity or treating a condition or disorder mediated by fascin activity in a subject in need thereof.

Description

COMPOUNDS AND METHODS FOR INHIBITING FASCIN
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional Patent Application No.
61/942,554, filed February 20, 2014, the complete disclosure of which is hereby incorporated by reference.
FIELD
[0002] The present technology relates generally to compounds, compositions and methods for treating or preventing cancer.
BACKGROUND
[0003] In recent years, progress has been made in the treatment of cancer, particularly with the development of targeted therapeutics. However, there is very little advancement in the treatment of tumor metastasis, which remains the major cause of mortality of cancer patients. Tumor metastasis being responsible for -90% of all cancer deaths (1, 2). Metastasis is a multi-step process wherein a primary tumor spreads from its initial site to secondary tissues and organs (3-5). This metastatic process is selective for cells that succeed in cell migration, invasion, embolization, survival in the circulation, arrest in a distant capillary bed, and extravasation into and multiplication within the organ parenchyma. Failure at any of these steps could block the entire metastatic process. Since tumor spreading is responsible for the majority of deaths of cancer patients, there is a demand for the development of therapeutic agents that inhibit tumor metastasis.
[0004] Most current treatments for metastatic cancers are aimed to kill or stop the growth of primary cancer cells (6-8). Although tumor cell migration and invasion are critical steps in the process of tumor metastasis (9-12), inhibitors of tumor cell migration are not presently available to treat metastatic cancer. Therefore, it is desirable to develop small molecule inhibitors targeting tumor cell migration. SUMMARY
[0005] In one aspect, the present technology provides compounds of Formula I, Formula la, Formula lb, Formula Ic, Formula Id, or Formula Ie:
Figure imgf000003_0001
Formula Ic Formula Id Formula Ie or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
L2 is selected from the group consisting of a covalent bond, -NR8-,
-C(0)NR8-, -NR8C(0)-, -C(0)CR82-, -CR8 2C(0)-, -NR8CR8 2-, and -CR8 2NR8-;
R2 is H, lower alkyl, 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONRluR , -NRluCOR\ -NR1UC02R\ -SOR\ -S02R\ -S02NR1UR , and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl), lower haloalkyl, and -CH2OH;
R7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl;
R8 is hydrogen or lower alkyl (such as methyl or ethyl);
each R10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
R11 is hydrogen or R3;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide, and provided that when L2 is a covalent bond, then R2 is not H or lower alkyl.
In some embodiments, the present technology provides a compound selected from 1 or a tautomer, and/or pharmaceutically acceptable salt thereof:
Table 1
Figure imgf000004_0001
Figure imgf000005_0001
Figure imgf000006_0001
Figure imgf000007_0001
Figure imgf000008_0001
Figure imgf000009_0001
Figure imgf000010_0001
Figure imgf000011_0001
Figure imgf000012_0001
Figure imgf000013_0001
Figure imgf000014_0001
Figure imgf000015_0001
Figure imgf000016_0001
Figure imgf000017_0001
Figure imgf000018_0001
Figure imgf000019_0001
Figure imgf000020_0001
Cmpd Structure Name Inhibition* MS
75 N-( 1 -(4-fluorobenzyl)- 1 H- < 10 %
indazol-3-yl)-4- methylthiazole-5 - carboxamide
76 N-( 1 -(4-fluorobenzyl)- 1 H- < 10 %
indazol-3 -yl)pyridazine-3 - carboxamide
77 1 -(4-methylbenzyl) < 10 %
indazol-3 -amine
78 N-( 1 -(4-methylbenzyl)- 1H- < 10 %
indazol-3 -yl)furan-3 - carboxamide
Figure imgf000021_0001
Cmpd Structure Name Inhibition* MS
79 3-methyl-N-(l-(4- < 10 %
methylbenzyl)- 1 H-indazol- 3-yl)isoxazole-4- carboxamide
80 N-(l-(4-methylbenzyl)-lH- 50 %
indazol-3 -yl)isoxazole-5 - carboxamide
81 2-methyl-N-(l-(4- < 10 %
methylbenzyl)- 1 H-indazol- 3 -yl)furan-3 -carboxamide
82 4-methyl-N-(l-(4- < 10 %
methylbenzyl)- 1 H-indazol- 3 -yl)thiazole-5 -carboxamide
Figure imgf000022_0001
Cmpd Structure Name Inhibition* MS
83 N-(l-(4-methylbenzyl)-lH- < 10 %
indazol-3 -yl)pyridazine-3 - carboxamide
84 4-((3 -amino- 1 H-indazol- 1 - < 10 %
yl)methyl)benzonitrile
85 N-( 1 -(4-cyanobenzyl)- 1 H- < 10 %
indazol-3 -yl)furan-3 - carboxamide
86 N-( 1 -(4-cyanobenzyl)- 1 H- < 10 %
indazol-3-yl)-3- methylisoxazole-4- carboxamide
Figure imgf000023_0001
Cmpd Structure Name Inhibition* MS
87 N-( 1 -(4-cyanobenzyl)- 1 H- < 10 %
indazol-3 -yl)isoxazole-5 - carboxamide
88 N-( 1 -(4-cyanobenzyl)- 1 H- < 10 %
indazol-3 -yl)-2-methylfuran- 3 -carboxamide
89 N-( 1 -(4-cyanobenzyl)- 1 H- < 10 %
indazol-3-yl)-4- methylthiazole-5 - carboxamide
90 N-( 1 -(4-cyanobenzyl)- 1 H- < 10 %
indazol-3 -yl)pyridazine-3 - carboxamide
Figure imgf000024_0001
Figure imgf000025_0001
Figure imgf000026_0001
Figure imgf000027_0001
Cmpd Structure Name Inhibition* MS**
106 6-(trifluoromethyl)- 1 -(4- < 10 % 360
(trifluoromethyl)benzyl)- 1 H- indazol-3 -amine
107 N-(6-(trifluoromethyl)- 1 -(4- < 10 % 454
(trifluoromethyl)benzyl)- 1 H- indazol-3 -yl)furan-3 - carboxamide
108 3-methyl-N-(6- < 10 % 469
(trifluoromethyl)- 1 -(4- (trifluoromethyl)benzyl)- 1 H- indazol-3 -yl)isoxazole-4- carboxamide
109 2-methyl-N-(6- < 10 % 468
(trifluoromethyl)- 1 -(4- (trifluoromethyl)benzyl)- 1 H- indazol-3 -yl)furan-3 - carboxamide
Figure imgf000028_0001
110 4-methyl-N-(6- < 10 % 485
(trifluoromethyl)- 1 -(4- (trifluoromethyl)benzyl)- 1 H- indazol-3-yl)thiazole-5- carboxamide
Figure imgf000028_0002
Cmpd Structure Name Inhibition* MS**
111 7-(trifluoromethyl)- 1 -(4- < 10 % 360
(trifluoromethyl)benzyl)- 1 H- indazol-3 -amine
Figure imgf000029_0001
112 0 N-(7-(trifluoromethyl)- 1 -(4- < 10 % 454
(trifluoromethyl)benzyl)- 1 H- indazol-3 -yl)furan-3 - carboxamide
113 3-methyl-N-(7- < 10 % 469
(trifluoromethyl)- 1 -(4- (trifluoromethyl)benzyl)- 1 H- indazol-3 -yl)isoxazole-4- carboxamide
Figure imgf000029_0002
114 0 2-methyl-N-(7- < 10 % 468
(trifluoromethyl)- 1 -(4- ο N, J J (trifluoromethyl)benzyl)- 1 H- indazol-3 -yl)furan-3 -
CF3 carboxamide
115 4-methyl-N-(7- < 10 % 485
(trifluoromethyl)- 1 -(4-
(trifluoromethyl)benzyl)- 1 H- indazol-3-yl)thiazole-5- carboxamide
Figure imgf000029_0003
Figure imgf000030_0001
Figure imgf000031_0001
Figure imgf000032_0001
Figure imgf000033_0001
Figure imgf000034_0001
Cmpd Structure Name Inhibition*
141 N-(4-chloro-l-(4- < 10 %
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3-yl)- 2-methylfuran-3 - carboxamide
142 N-(4-chloro-l-(4- < 10 %
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3-yl)- 3-methylisoxazole-4- carboxamide
143 3-bromo-l-(4- < 10 %
(trifluoromethyl)bi
indazole
144 3-phenyl-l-(4- < 10 %
(trifluoromethyl)bi
indazole
145 3 -(naphthalen- 1 -yl)- 1 -(4- < 10 %
(trifluoromethyl)benzyl)- 1 H- indazole
Figure imgf000035_0001
Cmpd Structure Name Inhibition* MS**
146 3 -(5 -methylfuran-2-yl)- 1 -(4- < 10 % 357
(trifluoromethyl)benzyl)- 1 H-
N indazole
CF3
147 0 3-(furan-3-yl)-l-(4- < 10 % 343
(trifluoromethyl)benzyl)- 1 H- indazole
N
CF3
148 0 3 -(2-methylfuran-3 -yl)- 1 -(4- < 10 % 357
(trifluoromethyl)benzyl)- 1 H- indazole
CF3
149 4-chloro-N-methyl- 1 -(4- < 10 % 341
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- amine
CF3
150 N-(4-chloro-l-(4- < 10 % 369
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)acetamide
Figure imgf000036_0001
Cmpd Structure Name Inhibition* MS**
151 o N-(4-chloro-l-(4- 80 % 383
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)propionamide
CF3
152 N-(4-chloro-l-(4- 100 % 397
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)isobutyramide
Figure imgf000037_0001
153 O N-(4-chloro-l-(4- < 10 % 397
(trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)butyramide
CF3
* measured in terms of the percentage in the reduction of bundle activity in the presence of 50 μΜ of the compound relative to the bundle activity when the compound was not present as described in Example 4 below.
** m/z of (M+H)+ ion obtained by electrospray ionization (ESI) mass spectrometry (MS).
[0007] In another aspect, the present technology provides a pharamceutical composition comprising at least one compound described herein.
[0008] In still another aspect, the present technology provides a method of treating a condition or disorder mediated by fascin activity in a subject in need thereof which method comprises administering to the subject a therapeutically effective amount of at least one compound or a composition described herein. [0009] In another aspect, the present technology provides a method of inhibiting fascin activity, comprising administering an effective amount of a compound or a composition described herein to a cell in need thereof to thereby inhibit fascin activity in the cell.
[0010] In another aspect, the present technology provides a compound or a composition described herein for use in inhibiting fascin activity or in treating a condition or disorder mediated by fascin activity in a subject in need thereof.
[0011] In another aspect, the present technology provides use of a compound or a composition described herein in the preparation of a medicament for treating a condition or disorder mediated by fascin activity in a subject in need thereof or for inhibiting fascin activity.
[0012] In some embodiments, the cell is in an animal. In some embodiments, the cell has been removed from an animal. In some embodiments, the animal is a human. In some embodiments, the human suffers from a disease or condition.
[0013] In some embodiments, the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage. In some embodiments, the condition or disorder is a metastatic cancer.
[0014] In some embodiments, the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer.
[0015] In still another aspect, the present technology provides methods and intermediate compounds for the preparation of compounds of Formula I or tautomer thereof, and/or a pharmaceutically acceptable salt thereof. In some embodiments, the intermediate compounds are of any of the following Formulas
Figure imgf000039_0001
Formula V Formula Va Formula Vb
Formula Via
Figure imgf000039_0002
F rmula Vic F rmula VId Formula Vie
Figure imgf000039_0003
Formula VII Formula Vila Formula Vllb
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
A7 is NH or CH2;
Y is F, CI, Br or I;
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6; R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl) and lower haloalkyl;
R7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl;
R11 is hydrogen or R3; and
each R10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring.
DETAILED DESCRIPTION
[0016] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, similar symbols typically identify similar components, unless context dictates otherwise. The illustrative embodiments described in the detailed description, drawings, and claims are not meant to be limiting.
Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.
[0017] Fascin is an actin-bundling protein. For cell migration to proceed, actin
cytoskeleton must be reorganized by forming polymers and bundles to affect the dynamic changes of cell shapes (13-15). Individual actin filaments are flexible and elongation of individual filaments per se is insufficient for membrane protrusion which is necessary for cell migration. Bundling of actin filaments provides rigidity to actin filaments for protrusions in the form of lamellipodia and filopodia against the compressive force from the plasma membrane (16) (17). As noted, one of the critical actin-bundling proteins is fascin (18-22). Fascin is the primary actin cross-linker in filopodia and shows no sequence homology with other actin-binding proteins (23). It is required to maximally cross-link the actin filaments into straight, compact, and rigid bundles (24).
[0018] Elevated levels of fascin have been found in many types of metastatic tumors (including breast, prostate, ovarian, lung, gastric, esophageal, and others) and are correlated with clinically aggressive phenotypes, poor prognosis, and shorter survival (25-29) (30, 31) (32-34). Fascin inhibitors may target tumor cell migration and invasion, and provide treatments for metastatic cancer.
Definitions
[0019] The technology is described herein using several definitions, as set forth throughout the specification.
[0020] The use of the terms "a" and "an" and "the" and similar referents in the context of describing the elements (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context.
[0021] As used herein, "about" will be understood by persons of ordinary skill in the art and will vary to some extent depending upon the context in which it is used. If there are uses of the term which are not clear to persons of ordinary skill in the art, given the context in which it is used, "about" will mean up to plus or minus 10% of the particular term.
[0022] A dash ("-") that is not between two letters or symbols is used to indicate a point of attachment for a substituent. For example, -CONH2 is attached through the carbon atom.
[0023] By "optional" or "optionally" is meant that the subsequently described event or circumstance may or may not occur, and that the description includes instances where the event or circumstance occurs and instances in which it does not. For example, "optionally substituted alkyl" encompasses both "alkyl" and "substituted alkyl" as defined herein. It will be understood by those skilled in the art, with respect to any group containing one or more substituents, that such groups are not intended to introduce any substitution or substitution patterns that are sterically impractical, synthetically non-feasible and/or inherently unstable.
[0024] "Alkyl" encompasses straight chain and branched chain having the indicated number of carbon atoms, usually from 1 to 20 carbon atoms, for example 1 to 8 carbon atoms, such as 1 to 6 carbon atoms. For example Ci-C6 alkyl encompasses both straight and branched chain alkyl of from 1 to 6 carbon atoms. Examples of alkyl groups include methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, tert-butyl, pentyl, 2-pentyl, isopentyl, neopentyl, hexyl, 2-hexyl, 3-hexyl, 3-methylpentyl, and the like. Alkylene is another subset of alkyl, referring to the same residues as alkyl, but having two points of attachment. Alkylene groups will usually have from 2 to 20 carbon atoms, for example 2 to 8 carbon atoms, such as from 2 to 6 carbon atoms. For example, Co alkylene indicates a covalent bond and Ci alkylene is a methylene group. When an alkyl residue having a specific number of carbons is named, all geometric isomers having that number of carbons are intended to be encompassed; thus, for example, "butyl" is meant to include n-butyl, sec-butyl, isobutyl and t-butyl; "propyl" includes n-propyl and isopropyl. "Lower alkyl" refers to an alkyl group having 1 to 4 carbons.
[0025] "Alkenyl" refers to straight or branched hydrocarbyl groups having the indicated number of carbon atoms, usually from 1 to 8 carbon atoms, for example 2 to 4 carbon atoms, and at least 1 and preferably from 1 to 2 sites of vinyl (>C=C<) unsaturation. Such groups are exemplified, for example, by vinyl, allyl, and but-3-en-l-yl. Included within this term are the cis and trans isomers or mixtures of these isomers. "Lower alkenyl" refers to an alkenyl group having 1 to 4 carbons, which can be indicated by C2-C4 alkenyl.
[0026] "Cycloalkyl" indicates a non-aromatic partially saturated, or fully saturated carbocyclic ring having the indicated number of carbon ring atoms, for example, 3 to 10, or 3 to 8, or 3 to 6 ring carbon atoms. Cycloalkyl groups may be monocyclic or poly eye lie (e.g., bicyclic, tricyclic). Examples of cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclopentenyl and cyclohexyl, as well as bridged and caged ring groups (e.g. , norbornane, bicyclo[2.2.2]octane). In addition, one ring of a polycyclic cycloalkyl group may be aromatic, provided the polycyclic cycloalkyl group is bound to the parent structure via a non-aromatic carbon. For example, a 1,2,3,4-tetrahydronaphthalen-l-yl group (wherein the moiety is bound to the parent structure via a non-aromatic carbon atom) is a cycloalkyl group, while l,2,3,4-tetrahydronaphthalen-5-yl (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is not considered a cycloalkyl group. Examples of polycyclic cycloalkyl groups consisting of a cycloalkyl group fused to an aromatic ring are described below.
[0027] "Aryl" indicates an aromatic carbon ring having the indicated number of carbon atoms, for example, 6 to 12 or 6 to 10 carbon atoms, in the ring. Aryl groups may be monocyclic or polycyclic (e.g., bicyclic, tricyclic). In some instances, both rings of a polycyclic aryl group are aromatic (e.g., naphthyl). In other instances, polycyclic aryl groups may include a non-aromatic ring (e.g., cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl) fused to an aromatic ring, provided the polycyclic aryl group is bound to the parent structure via an atom in the aromatic ring. Thus, a l,2,3,4-tetrahydronaphthalen-5- yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is considered an aryl group, while 1,2,3,4-tetrahydronaphthalen-l-yl (wherein the moiety is bound to the parent structure via a non-aromatic carbon atom) is not considered an aryl group. Similarly, a l,2,3,4-tetrahydroquinolin-8-yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is considered an aryl group, while 1,2,3,4- tetrahydroquinolin-l-yl group (wherein the moiety is bound to the parent structure via a non- aromatic nitrogen atom) is not considered an aryl group. However, the term "aryl" does not encompass or overlap with "heteroaryl", as defined herein, regardless of the point of attachment (e.g., both quinolin-5-yl and quinolin-2-yl are heteroaryl groups). In some instances, aryl is phenyl or naphthyl. In certain instances, aryl is phenyl. Additional examples of aryl groups comprising an aromatic carbon ring fused to a non-aromatic ring are described below.
[0028] "Carboxy" or "carboxyl" refers to -COOH or a salt thereof.
[0029] "Heteroaryl" indicates an aromatic ring containing the indicated number of ring atoms (e.g., 5 to 12, or 5 to 10 membered heteroaryl) made up of one or more heteroatoms (e.g., 1, 2, 3 or 4 heteroatoms) selected from N, O and S and with the remaining ring atoms being carbon. 5 -Membered heteroaryl is a heteroaryl having 5 ring atoms. 6-Membered heteroaryl is a heteroaryl having 6 ring atoms. Heteroaryl groups do not contain adjacent S and O atoms. In some embodiments, the total number of S and O atoms in the heteroaryl group is not more than 2. In some embodiments, the total number of S and O atoms in the heteroaryl group is not more than 1. Unless otherwise indicated, heteroaryl groups may be bound to the parent structure by a carbon or nitrogen atom, as valency permits. For example, "pyridyl" includes 2-pyridyl, 3-pyridyl and 4-pyridyl groups, and "pyrrolyl" includes 1- pyrrolyl, 2-pyrrolyl and 3-pyrrolyl groups. When nitrogen is present in a heteroaryl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., N+-0"). Additionally, when sulfur is present in a heteroaryl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., S+-0" or S02). Heteroaryl groups may be monocyclic or polycyclic (e.g., bicyclic, tricyclic). [0030] In some instances, a heteroaryl group is monocyclic. Examples include pyrrole, pyrazole, imidazole, triazole (e.g., 1 ,2,3-triazole, 1 ,2,4-triazole, 1 ,2,4-triazole), tetrazole, furan, isoxazole, oxazole, oxadiazole (e.g., 1 ,2,3-oxadiazole, 1 ,2,4-oxadiazole, 1 ,3,4- oxadiazole), thiophene, isothiazole, thiazole, thiadiazole (e.g., 1 ,2,3-thiadiazole, 1 ,2,4- thiadiazole, 1 ,3,4-thiadiazole), pyridine, pyridazine, pyrimidine, pyrazine, triazine (e.g., 1 ,2,4-triazine, 1 ,3,5-triazine) and tetrazine.
[0031] In some instances, both rings of a polycyclic heteroaryl group are aromatic.
Examples include indole, isoindole, indazole, benzoimidazole, benzotriazole, benzofuran, benzoxazole, benzoisoxazole, benzoxadiazole, benzothiophene, benzothiazole,
benzoisothiazole, benzothiadiazole, lH-pyrrolo[2,3-b]pyridine, lH-pyrazolo[3,4-b]pyridine, 3H-imidazo[4,5-b]pyridine, 3H-[1 ,2,3]triazolo[4,5-b]pyridine, lH-pyrrolo[3,2-b]pyridine, lH-pyrazolo[4,3-b]pyridine, lH-imidazo[4,5-b]pyridine, lH-[l ,2,3]triazolo[4,5-b]pyridine, lH-pyrrolo[2,3-c]pyridine, lH-pyrazolo[3,4-c]pyridine, 3H-imidazo[4,5-c]pyridine, 3H- [l ,2,3]triazolo[4,5-c]pyridine, lH-pyrrolo[3,2-c]pyridine, lH-pyrazolo[4,3-c]pyridine, 1H- imidazo[4,5-c]pyridine, lH-[l ,2,3]triazolo[4,5-c]pyridine, furo[2,3-b]pyridine, oxazolo[5,4- b] pyridine, isoxazolo[5,4-b]pyridine, [l ,2,3]oxadiazolo[5,4-b]pyridine, furo[3,2-b]pyridine, oxazolo[4,5-b]pyridine, isoxazolo[4,5-b]pyridine, [l ,2,3]oxadiazolo[4,5-b]pyridine, furo[2,3- c] pyridine, oxazolo[5,4-c]pyridine, isoxazolo[5,4-c]pyridine, [l ,2,3]oxadiazolo[5,4- c]pyridine, furo[3,2-c]pyridine, oxazolo[4,5-c]pyridine, isoxazolo[4,5-c]pyridine,
[l ,2,3]oxadiazolo[4,5-c]pyridine, thieno[2,3-b]pyridine, thiazolo[5,4-b]pyridine,
isothiazolo[5,4-b]pyridine, [l ,2,3]thiadiazolo[5,4-b]pyridine, thieno[3,2-b]pyridine, thiazolo[4,5-b]pyridine, isothiazolo[4,5-b]pyridine, [1 ,2,3]thiadiazolo[4,5-b]pyridine, thieno[2,3-c]pyridine, thiazolo[5,4-c]pyridine, isothiazolo[5,4-c]pyridine,
[l ,2,3]thiadiazolo[5,4-c]pyridine, thieno[3,2-c]pyridine, thiazolo[4,5-c]pyridine,
isothiazolo[4,5-c]pyridine, [l ,2,3]thiadiazolo[4,5-c]pyridine, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, phthalazine, naphthyridine (e.g., 1 ,8-naphthyridine, 1 ,7- naphthyridine, 1 ,6-naphthyridine, 1 ,5-naphthyridine, 2,7-naphthyridine, 2,6-naphthyridine), imidazo[l ,2-a]pyridine, lH-pyrazolo[3,4-d]thiazole, lH-pyrazolo[4,3-d]thiazole and imidazo[2, 1 -b]thiazole.
[0032] In other instances, polycyclic heteroaryl groups may include a non-aromatic ring (e.g. , cycloalkyl, cycloalkenyl, heterocycloalkyl, heterocycloalkenyl) fused to a heteroaryl ring, provided the polycyclic heteroaryl group is bound to the parent structure via an atom in the aromatic ring. For example, a 4,5,6,7-tetrahydrobenzo[d]thiazol-2-yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is considered a heteroaryl group, while 4,5,6,7-tetrahydrobenzo[d]thiazol-5-yl (wherein the moiety is bound to the parent structure via a non-aromatic carbon atom) is not considered a heteroaryl group. Examples of polycyclic heteroaryl groups consisting of a heteroaryl ring fused to a non- aromatic ring are described below.
[0033] "Heterocycloalkyl" indicates a non-aromatic partially saturated, or fully saturated ring having the indicated number of ring atoms (e.g., 3 to 10, or 3 to 7, membered
heterocycloalkyl) made up of one or more heteroatoms (e.g., 1, 2, 3 or 4 heteroatoms) selected from N, O and S and with the remaining ring atoms being carbon. 5 -Membered heterocycloalkyl is a heterocycloalkyl having 5 ring atoms. 6-Membered heterocycloalkyl is a heterocycloalkyl having 6 ring atoms. Heterocycloalkyl groups may be monocyclic or polycyclic (e.g., bicyclic, tricyclic). Examples of heterocycloalkyl groups include oxiranyl, aziridinyl, azetidinyl, pyrrolidinyl, imidazolidinyl, pyrazolidinyl, piperidinyl, piperazinyl, morpholinyl and thiomorpholinyl. When nitrogen is present in a heterocycloalkyl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., N+-0"). Examples include piperidinyl N-oxide and morpholinyl-N-oxide. Additionally, when sulfur is present in a heterocycloalkyl ring, it may, where the nature of the adjacent atoms and groups permits, exist in an oxidized state (i.e., S+-0" or -S02-). Examples include thiomorpholine S-oxide and thiomorpholine S,S-dioxide. In addition, one ring of a polycyclic heterocycloalkyl group may be aromatic (e.g., aryl or heteroaryl), provided the polycyclic heterocycloalkyl group is bound to the parent structure via a non-aromatic carbon or nitrogen atom. For example, a 1,2,3,4-tetrahydroquinolin-l-yl group (wherein the moiety is bound to the parent structure via a non-aromatic nitrogen atom) is considered a
heterocycloalkyl group, while l,2,3,4-tetrahydroquinolin-8-yl group (wherein the moiety is bound to the parent structure via an aromatic carbon atom) is not considered a
heterocycloalkyl group. Examples of polycyclic heterocycloalkyl groups consisting of a heterocycloalkyl group fused to an aromatic ring are described below.
[0034] By "alkoxy" is meant an alkyl group of the indicated number of carbon atoms attached through an oxygen bridge such as, for example, methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, sec-butoxy, tert-butoxy, pentoxy, 2-pentyloxy, isopentoxy,
neopentoxy, hexoxy, 2-hexoxy, 3-hexoxy, 3-methylpentoxy, and the like. An alkoxy group is further meant to encompass a cycloalkyl group, as defined above, that is likewise attached through an oxygen bridge. Alkoxy groups will usually have from 1 to 6 carbon atoms attached through the oxygen bridge. "Lower alkoxy" refers to an alkoxy group having 1 to 4 carbons.
[0035] The term "halo" includes fluoro, chloro, bromo, and iodo, and the term "halogen" includes fluorine, chlorine, bromine, and iodine.
[0036] The term "substituted", as used herein, means that any one or more hydrogens on the designated atom or group is replaced with a selection from the indicated group, provided that the designated atom's normal valence is not exceeded. When a substituent is oxo (i.e., =0) then 2 hydrogens on the atom are replaced. Combinations of substituents and/or variables are permissible only if such combinations result in stable compounds or useful synthetic intermediates. A stable compound or stable structure is meant to imply a compound that is sufficiently robust to survive isolation from a reaction mixture, and subsequent formulation as an agent having at least practical utility. Unless otherwise specified, substituents are named into the core structure. For example, it is to be understood that when (cycloalkyl)alkyl is listed as a possible substituent, the point of attachment of this substituent to the core structure is in the alkyl portion.
[0037] "Haloalkyl" refers to alkyl groups substituted with 1 to 5, 1 to 3, or 1 to 2 halo groups, wherein alkyl and halo are as defined herein. Lower haloalkyl refers to a C1-C4 alkyl substituted with 1 to 5, 1 to 3, or 1 to 2 halo groups.
[0038] "Lower alkylphenyl" refers to C1-C4 alkyl-phenyl.
[0039] "Isomers" are different compounds that have the same molecular formula.
"Stereoisomers" are isomers that differ only in the way the atoms are arranged in space.
"Enantiomers" are stereoisomers that are non-superimposable mirror images of each other. A 1 : 1 mixture of a pair of enantiomers is a "racemic" mixture. The symbol "(±)" may be used to designate a racemic mixture where appropriate. "Diastereoisomers" are stereoisomers that have at least two asymmetric atoms, but which are not mirror-images of each other. A "meso compound" or "meso isomer" is a non-optically active member of a set of stereoisomers. Meso isomers contain two or more stereocenters but are not chiral (i.e., a plane of symmetry exists within the molecule). The absolute stereochemistry is specified according to the Cahn- Ingold-Prelog R-S system. When a compound is a pure enantiomer the stereochemistry at each chiral carbon can be specified by either R or S. Resolved compounds whose absolute configuration is unknown can be designated (+) or (-) depending on the direction (dextro- or levorotatory) which they rotate plane polarized light at the wavelength of the sodium D line. Certain of the compounds disclosed and/or described herein contain one or more asymmetric centers and can thus give rise to enantiomers, diastereomers, meso isomers and other stereoisomeric forms. Unless otherwise indicated, compounds disclosed and/or described herein include all such possible enantiomers, diastereomers, meso isomers and other stereoisomeric forms, including racemic mixtures, optically pure forms and intermediate mixtures. Enantiomers, diastereomers, meso isomers and other stereoisomeric forms can be prepared using chiral synthons or chiral reagents, or resolved using conventional techniques. Unless specified otherwise, when the compounds disclosed and/or described herein contain olefmic double bonds or other centers of geometric asymmetry, it is intended that the compounds include both E and Z isomers.
[0040] "Tautomers" are structurally distinct isomers that interconvert by tautomerization. Tautomerization is a form of isomerization and includes prototropic or proton-shift tautomerization, which is considered a subset of acid-base chemistry. Prototropic tautomerization or proton-shift tautomerization involves the migration of a proton
accompanied by changes in bond order, often the interchange of a single bond with an adjacent double bond. Where tautomerization is possible (e.g. in solution), a chemical equilibrium of tautomers can be reached. An example of tautomerization is keto-enol tautomerization. A specific example of keto-enol tautomerization is the interconverision of pentane-2,4-dione and 4-hydroxypent-3-en-2-one tautomers. Another example of tautomerization is phenol-keto tautomerization. A specific example of phenol-keto tautomerization is the interconversion of pyridin-4-ol and pyridin-4(lH)-one tautomers. When the compounds described herein contain moieties capable of tautomerization, and unless specified otherwise, it is intended that the compounds include all possible tautomers.
[0041] Pharmaceutically acceptable forms of the compounds recited herein include pharmaceutically acceptable salts, and mixtures thereof.
[0042] "Pharmaceutically acceptable salts" include, but are not limited to salts with inorganic acids, such as hydrochlorate, phosphate, diphosphate, hydrobromate, sulfate, sulfmate, nitrate, and like salts; as well as salts with an organic acid, such as malate, maleate, fumarate, tartrate, succinate, citrate, acetate, lactate, methanesulfonate, p-toluenesulfonate, 2- hydroxyethylsulfonate, benzoate, salicylate, stearate, and alkanoate such as acetate, HOOC- (CH2)n-COOH where n is 0-4, and like salts. Similarly, pharmaceutically acceptable cations include, but are not limited to sodium, potassium, calcium, aluminum, lithium, and ammonium. [0043] In addition, if the compounds described herein are obtained as an acid addition salt, the free base can be obtained by basifying a solution of the acid salt. Conversely, if the product is a free base, an addition salt, particularly a pharmaceutically acceptable addition salt, may be produced by dissolving the free base in a suitable organic solvent and treating the solution with an acid, in accordance with conventional procedures for preparing acid addition salts from base compounds. Those skilled in the art will recognize various synthetic methodologies that may be used to prepare non-toxic pharmaceutically acceptable addition salts.
[0044] The compounds disclosed and/or described herein can be enriched isotopic forms, e.g., enriched in the content of 2H, 3H, UC, 13C and/or 14C. In one embodiment, the compound contains at least one deuterium atom. Such deuterated forms can be made, for example, by the procedure described in U.S. Patent Nos. 5,846,514 and 6,334,997. Such deuterated compounds may improve the efficacy and increase the duration of action of compounds disclosed and/or described herein. Deuterium substituted compounds can be synthesized using various methods, such as those described in: Dean, D., Recent Advances in the Synthesis and Applications of Radiolabeled Compounds for Drug Discovery and
Development, Curr. Pharm. Des., 2000; 6(10); Kabalka, G. et al, The Synthesis of
Radiolabeled Compounds via Organometallic Intermediates, Tetrahedron, 1989, 45(21), 6601-21; and Evans, E., Synthesis of radiolabeled compounds, J. Radioanal. Chem., 1981, 64(1-2), 9-32.
[0045] As used herein the terms "group", "radical" or "fragment" are synonymous and are intended to indicate functional groups or fragments of molecules attachable to a bond or other fragments of molecules.
[0046] The term "active agent" is used to indicate a substance which has biological activity. In some embodiments, an "active agent" is a substance having pharmaceutical utility. For example an active agent may be an anti-metastasis therapeutic.
[0047] The term "therapeutically effective amount" or "effective amount" means an amount effective, when administered to a human or non-human subject, to provide a therapeutic benefit such as amelioration of symptoms, slowing of disease progression, or prevention of disease, or to inhibit fascin activity in vitro or in vivo, e.g., a therapeutically effective amount may be an amount sufficient to decrease the symptoms of a disease responsive to inhibition of fascin activity. [0048] "Inhibition of fascin activity" refers to a decrease in fascin activity as a direct or indirect response to the presence of at least one compound, or pharmaceutically acceptable salt thereof, described herein, relative to the activity of fascin in the absence of the at least one compound, or pharmaceutically acceptable salt thereof, described herein. The decrease in activity may be due to the direct interaction of the at least one compound, or
pharmaceutically acceptable salt thereof, described herein with fascin or with one or more other factors that in turn affect fascin activity.
[0049] In some embodiments, the compound, or pharmaceutically acceptable salt thereof, described herein has an IC50 (the concentration that inhibits 50 % of fascin acitivity) value of about 500 micromolar, about 100 micromolar, about 10 micromolar, about 1 micromolar, about 500 nanomolar, about 400 nanomolar, about 300 nanomolar, about 200 nanomolar, about 100 nanomolar, about 50 nanomolar, about 10 nanomolar, of less than about 10 nanomolar, or a range between and including any two of these values.
[0050] A "disease responsive to inhibition of fascin activity" is a disease in which inhibiting fascin provides a therapeutic benefit such as an amelioration of symptoms, decrease in disease progression, prevention or delay of disease onset, prevention or amelioration of an inflammatory response, or inhibition of aberrant activity and/or death of certain cell-types (such as cancer cells).
[0051] "Treatment" or "treating" means any treatment of a disease in a patient, including: a) preventing the disease, that is, causing the clinical symptoms of the disease not to develop;
b) inhibiting the progression of the disease;
c) slowing or arresting the development of clinical symptoms; and/or
d) relieving the disease, that is, causing the regression of clinical symptoms.
[0052] "Subject" or "patient' refers to an animal, such as a mammal, that has been or will be the object of treatment, observation or experiment. The methods described herein may be useful in both human therapy and veterinary applications. In some embodiments, the subject is a mammal; and in some embodiments the subject is human.
[0053] As used herein, the term "cancer" includes solid mammalian tumors as well as hematological malignancies. The terms "tumor cell(s)" and "cancer cell(s)" are used interchangeably herein. [0054] "Solid mammalian tumors" include cancers of the head and neck, lung,
mesothelioma, mediastinum, esophagus, stomach, pancreas, hepatobiliary system, small intestine, colon, colorectal, rectum, anus, kidney, urethra, bladder, prostate, urethra, penis, testis, gynecological organs, ovaries, breast, endocrine system, skin, central nervous system; sarcomas of the soft tissue and bone; and melanoma of cutaneous and intraocular origin.
[0055] The term "hematological malignancies" includes childhood leukemia and lymphomas, Hodgkin's disease, lymphomas of lymphocytic and cutaneous origin, acute and chronic leukemia, plasma cell neoplasm and cancers associated with AIDS.
[0056] Also, in these examples and elsewhere, abbreviations have the following meanings:
°C = degree Celsius
= microliter
μΜ = micromolar
DDT = dithiothreitol
DMSO = dimethyl sulfoxide
g = gram
kg = kilogram
hr or h = hour
L = liter
M = molar
nM = nanomolar
mg = milligram
MHz = mega Hertz
min = minute
mL = milliliter
mm = millimeter
mM = millimolar
mmol = millimole
mol = mole
PMSF = phenylmethylsulfonyl fluoride
N = normal
EDTA = ethylenediaminetetraacetic acid
μιη = micrometer
r.p.m = round per minute standard deviation
volume/volume
weight
Compounds
[0057] The present technology provides compounds of Formula I, la or lb:
Figure imgf000051_0001
Formula I Formula la or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
L2 is selected from the group consisting of -NR8-, -C(0)NR8-, -NR8C(0)- , -C(0)CR82-, -CR8 2C(0)-, -NR8CR82-, and -CR8 2NR8-;
R2 is hydrogen, lower alkyl, 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R', -CONRluR , -OCOR', -OC02R', -OCONRluR , -NR1UC0R\ -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl), lower haloalkyl, and -CH2OH;
R7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl;
R8 is hydrogen or lower alkyl (such as methyl or ethyl);
each R10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
R11 is hydrogen or R3;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
[0058] The present technology provides compounds of Formula I, la or lb:
Figure imgf000052_0001
Formula I Formula la Formula lb or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
L2 is selected from the group consisting of -C(0)NR8-, -NR8C(0)- , -C(0)CR8 2-,
-CR8 2C(0)-, -NR8CR82-, and -CR8 2NR8-; R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl), lower haloalkyl, and -CH2OH;
R7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl;
R8 is hydrogen or lower alkyl (such as methyl or ethyl);
each R10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
R11 is hydrogen or R3;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
[0059] In some embodiments, R8 is hydrogen. In some embodiments, q is 1.
[0060] In some embodiments, provided is a compound of Formula II
Figure imgf000053_0001
Formula II,
or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
L2 is selected from the group consisting of -C(0)NH-, -NHC(O)-, -C(0)CH2- , -CH2C(0)-, -NHCH2-, and -CH2NH-;
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR10, -NR10CO2R10, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
n is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of halo, cyano, lower alkyl (preferably methyl or ethyl) and lower haloalkyl;
R7 is lower alkyl (preferably methyl or ethyl) or lower haloalkyl; and each R10 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide. [0061] In some embodiments, provided is a compound of Formula Ilia, Illb, IIIc or Hid
Figure imgf000055_0001
Formula Ilia Formula Illb Formula IIIc Formula Hid or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
n is 0, 1, 2 or 3;
each R6 is independently selected from the group consisting of halo, cyano, lower alkyl (preferably methyl or ethyl) and lower haloalkyl;
R7 is lower alkyl (preferably methyl or ethyl); and
each R10 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring; provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
[0062] In some embodiments, provided is a compound of Formula IVa, IVb, IVc or IVd:
Figure imgf000056_0001
Formula IVe Formula IVf Formula IVg Formula IVh or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR10, -NR10CO2R10, -SOR7, -S02R7, -SO2NR10R10, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), and -NR10SO2R7; each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R', -CONRluR , -OCOR', -OC02R', -OCONRluR , -NRluCOR , -NR10CO2R10, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
R is lower alkyl (preferably methyl or ethyl); and
each R is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
[0063] In another aspect, the present technology provides intermediate compounds for the preparation of compounds of Formula I or tautomer thereof, and/or a pharmaceutically acceptable salt thereof. In some embodiments, the intermediate compounds are of any o of the following Formulas
Figure imgf000057_0001
Formula V Formula Va Formula Vb
Figure imgf000057_0002
Formula VI Formula Via Formula VIb
Figure imgf000057_0003
Formula Vic Formula VId
Figure imgf000058_0001
Formula VII Formula Vila Formula Vllb wherein
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
A7 is NH or CH2;
Y is F, CI, Br or I;
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl (such as methyl or ethyl) and lower haloalkyl;
R7 is lower alkyl (such as methyl or ethyl) or lower haloalkyl;
R11 is hydrogen or R3; and
each R10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring. [0064] The present technology provides compounds of Formula VIII, Villa or Vlllb:
Figure imgf000059_0001
Formula Villa Formula Vlllb Formula VIIIc or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
L2 is selected from the group consisting of -NR8-, -C(0)NR8-, -NR8C(0)-, -C(0)CR82-, -CR8 2C(0)-, -NR8CR82-, and -CR8 2NR8-;
R2a is hydrogen, or -NHC(0)R2, wherein R2 is lower alkyl, 6-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10- membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7; and
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7.
[0065] In some embodiments, L2 is -C(0)NH-, -C(0)CH2-, or -CH2NH-.
[0066] In some embodiments, A1 is N and A2, A3, A4, A5 and A6 are independently CH or CR3. In some embodiments, A2 is N and A1, A3, A4, A5 and A6 are independently CH or CR3.
3 1 2 4 5 6 3
In some embodiments, A is N and A , A , A , A and A are independently CH or CR . In
4 1 2 3 5 6 3 some embodiments, A is N and A , A , A , A and A are independently CH or CR . In some
5 1 2 3 4 6 3 embodiments, A is N and A , A , A , A , and A are independently CH or CR . In some embodiments, A6 is N and A1, A2, A3, A4, and A5 are independently CH or CR3. [0067] In some embodiments, A1 and A2 are N. In some embodiments, A3, A4, A5 and A6 are independently CH or CR3. In some embodiments, A3 is N, and A4, A5 and A6 are independently CH or CR3. In some embodiments, A4 is N and A3, A5 and A6 are independently CH or CR3. In some embodiments, A5 is N, and A3, A4 and A6 are independently CH or CR3. In some embodiments, A6 is N, and A3, A4, and A5 are independently CH or CR3. In some embodiments, A3 and A4 are N, and A5 and A6 are independently CH or CR3. In some embodiments, A3 and A5 are N, and A4 and A6 are independently CH or CR3. In some embodiments, A3 and A6 are N, and A4 and A5 are independently CH or CR3. In some embodiments, A4 and A5 are N, and A3 and A6 are independently CH or CR3. In some embodiments, A4 and A6 are N, and A3 and A5 are independently CH or CR3. In some embodiments, A5 and A6 are N, and A3 and A4 are independently CH or CR3.
[0068] In some embodiments, A1 and A3 are N. In some embodiments, A2, A4, A5 and A6 are independently CH or CR3. In some embodiments, A4 is N, and A2, A5 and A6 are independently CH or CR3. In some embodiments, A5 is N and A2, A4 and A6 are independently CH or CR3. In some embodiments, A6 is N, and A2, A4 and A5 are independently CH or CR3. In some embodiments, A2 and A4 are N, and A5 and A6 are independently CH or CR3. In some embodiments, A2 and A5 are N, and A4 and A6 are independently CH or CR3. In some embodiments, A2 and A6 are N, and A4 and A5 are independently CH or CR3. In some embodiments, A4 and A5 are N, and A2 and A6 are independently CH or CR3. In some embodiments, A4 and A6 are N, and A2 and A5 are independently CH or CR3. In some embodiments, A5 and A6 are N, and A2 and A4 are independently CH or CR3.
[0069] In some embodiments, A1 and A4 are N. In some embodiments, A2, A3, A5 and A6 are independently CH or CR3. In some embodiments, A3 is N, and A2, A5 and A6 are independently CH or CR3. In some embodiments, A5 is N and A2, A3 and A6 are independently CH or CR3. In some embodiments, A6 is N, and A2, A3 and A5 are independently CH or CR3. In some embodiments, A2 and A3 are N, and A5 and A6 are independently CH or CR3. In some embodiments, A2 and A5 are N, and A3 and A6 are independently CH or CR3. In some embodiments, A2 and A6 are N, and A3 and A5 are independently CH or CR3. In some embodiments, A3 and A5 are N, and A2 and A6 are independently CH or CR3. In some embodiments, A3 and A6 are N, and A2 and A5 are independently CH or CR3. In some embodiments, A5 and A6 are N, and A2 and A3 are independently CH or CR3.
[0070] In some embodiments, A1 and A5 are N. In some embodiments, A2, A4, A3 and A6 are independently CH or CR3. In some embodiments, A4 is N, and A2, A3 and A6 are independently CH or CR3. In some embodiments, A3 is N and A2, A4 and A6 are
independently CH or CR3. In some embodiments, A6 is N, and A2, A4 and A3 are independently CH or CR3. In some embodiments, A2 and A4 are N, and A3 and A6 are independently CH or CR3. In some embodiments, A2 and A3 are N, and A4 and A6 are independently CH or CR3. In some embodiments, A2 and A6 are N, and A4 and A3 are independently CH or CR3. In some embodiments, A4 and A3 are N, and A2 and A6 are independently CH or CR3. In some embodiments, A4 and A6 are N, and A2 and A3 are independently CH or CR3. In some embodiments, A3 and A6 are N, and A2 and A4 are independently CH or CR3.
[0071] In some embodiments, A1 and A6 are N. In some embodiments, A2, A4, A5 and A3 are independently CH or CR3. In some embodiments, A4 is N, and A2, A5 and A3 are independently CH or CR3. In some embodiments, A5 is N and A2, A4 and A3 are
independently CH or CR3. In some embodiments, A3 is N, and A2, A4 and A5 are independently CH or CR3. In some embodiments, A2 and A4 are N, and A5 and A3 are independently CH or CR3. In some embodiments, A2 and A5 are N, and A4 and A3 are independently CH or CR3. In some embodiments, A2 and A3 are N, and A4 and A5 are independently CH or CR3. In some embodiments, A4 and A5 are N, and A2 and A3 are independently CH or CR3. In some embodiments, A4 and A3 are N, and A2 and A5 are independently CH or CR3. In some embodiments, A5 and A3 are N, and A2 and A4 are independently CH or CR3.
[0072] In some embodiments, A2 is N. In some embodiments, A1 is CH or CR3. In some embodiments, A3, A4, A5 and A6 are independently CH or CR3. In some embodiments, A3 is N, and A4, A5 and A6 are independently CH or CR3. In some embodiments, A4 is N and A3, A5 and A6 are independently CH or CR3. In some embodiments, A5 is N, and A3, A4 and A6 are independently CH or CR3. In some embodiments, A6 is N, and A3, A4, and A5 are independently CH or CR3. In some embodiments, A3 and A4 are N, and A5 and A6 are independently CH or CR3. In some embodiments, A3 and A5 are N, and A4 and A6 are independently CH or CR3. In some embodiments, A3 and A6 are N, and A4 and A5 are independently CH or CR3. In some embodiments, A4 and A5 are N, and A3 and A6 are independently CH or CR3. In some embodiments, A4 and A6 are N, and A3 and A5 are independently CH or CR3. In some embodiments, A5 and A6 are N, and A3 and A4 are independently CH or CR3.
[0073] In some embodiments, R1 is phenyl. In some embodiments, R1 is
trifluoromethylphenyl. In some embodiments, R1 is 4-trifluoromethylphenyl. In some embodiments, R1 is 4-fluorophenyl. In some embodiments, R1 is 4-chlorophenyl. In some embodiments, R1 is 4-methylphenyl. In some embodiments, R1 is pyridyl optionally substituted with 1 to 3 R6.
[0074] In some embodiments, R2 is phenyl optionally substituted with 1 to 4 R4. In some embodiments, R2 is 5-membered heteroaryl optionally substituted with 1 to 4 R4. In some embodiments, R2 is 6-membered heteroaryl optionally substituted with 1 to 4 R4. In some embodiments, R2 is phenyl substituted with 2 R4. In some embodiments, R2 is 5-membered heteroaryl substituted with 2 R4. In some embodiments, R2 is 6-membered heteroaryl substituted with 2 R4. In some embodiments, R2 is phenyl substituted with 1 R4. In some embodiments, R2 is 5-membered heteroaryl substituted with 1 R4. In some embodiments, R2 is 6-membered heteroaryl substituted with 1 R4.
[0075] In some embodiments, R2 is phenyl, chlorophenyl, methyl furan, In some embodiments, R2 is selected from the group consisting of thiophene, thiazole, isoxazole, oxazole, 1,2,5-oxadiazole, pyrazole, pyrimidine and pyridazine, which are optionally substituted with methyl. , In some embodiments, R2 is pyridazine, isoxazole or oxazole.
[0076] In some embodiments, R2 is 5- or 6-membered heteroaryl optionally substituted with 1 to 4 R4, wherein the heteroaryl comprises two heteroatoms selected from N, O and S. In some embodiments, R2 is 5- or 6-membered heteroaryl optionally substituted with 1 to 4 R4, wherein the heteroaryl comprises two heteroatoms selected from N and S.
[0077] In some embodiments, R2 is phenyl.
[0078] In some embodiments, R2 is selected from the group consisting of:
Figure imgf000063_0001
[0080] In some embodiments, R2 is 3 , < Ό" ^ or { N J.
[0081] In some embodiments of Formula Villa, VHIb or VIIIc, R2 is ethyl or isopropyl.
In some embodiments of Formula Villa, VHIb or VIIIc, R is
Figure imgf000063_0002
[0082] In some embodiments, R2 is R5 optionally substituted with 1 to 4 R4, wherein R5 is selected from the group consisting of furan, benzofuran, pyridine, pyridazine, pyrimidine, pyrazine, thiophene, thiazole, isothiazole, oxazole, isoxazole, oxadiazole, imidazole, pyrrole, and pyrazole. In some embodiments, R2 is R5 substituted with 1 R4. In some embodiments,
2 5 4 2 5 4
R is R substituted with 2 R . In some embodiments, R is R substituted with 3 R . In some embodiments, R2 is R5 substituted with 4 R4.
[0083] In some embodiments, R4 is selected from the group consisting of lower alkyl (such as methyl), halo, lower haloalkyl, -OH, -OR7, cyano and phenyl optionally substituted methyl, wherein R7 is lower alkyl or lower haloalkyl.
[0084] In some embodiments, m is 0. In some embodiments, m is 1. In some embodiments, R3 is halo. In some embodiments, R3 is lower alkyl.
[0085] In some embodiments, n is 1. [0086] In some embodiments, R6 is trifluoromethyl. In some embodiments, R6 is fluoro. In some embodiments, R6 is chloro. In some embodiments, R6 is methyl. In some embodiments R6 is cyano. In some embodiments, R6 is 4-trifiuoromethyl. In some embodiments, R6 is 4- fiuoro. In some embodiments, R6 is 4-chloro. In some embodiments, R6 is 4-methyl. In some embodiments, R6 is 4-cyano.
[0087 In some embodiments the compound is selected from
Figure imgf000064_0001
Figure imgf000065_0001
64
Figure imgf000066_0001
65
Figure imgf000067_0001
or a tautomer, and/or pharmaceutically acceptable salt thereof.
[0088] In so ds is
replaced with
Figure imgf000067_0002
[0089] In some embodiments, the compound is selected from
Figure imgf000068_0001
Figure imgf000069_0001

Figure imgf000070_0001

Figure imgf000071_0001
Figure imgf000072_0001
[0090] In some embodiments, the group
Figure imgf000073_0001
any of the above compounds
replaced with
Figure imgf000073_0002
[0091] In some embodiments, the present technology provides a compound selected from Table 2 or a tautomer, and/or pharmaceutically acceptable salt thereof:
Table 2
Figure imgf000073_0003
Figure imgf000074_0001
Figure imgf000075_0001
Figure imgf000076_0001
Figure imgf000077_0001
Figure imgf000078_0001
Compound Structure Name
80 N-(l -(4-methylbenzyl)-lH- indazol-3 -yl)isoxazole-5 - carboxamide
Figure imgf000079_0001
137 H2N CI 4-chloro-l-(4-
·¾>. (trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3-amine
Figure imgf000079_0002
138 N-(4-chloro-l-(4- (trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3-yl)-4- methylthiazole-5 -carboxamide
CF3
139 N-(4-chloro-l-(4- (trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)pyridazine-3 -carboxamide
151 N-(4-chloro-l-(4- (trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)propionamide
Figure imgf000079_0003
Compound Structure Name
152 0 N-(4-chloro-l-(4- i γ (trifluoromethyl)benzyl)- 1 H- pyrazolo[3,4-c]pyridin-3- yl)isobutyramide
In one aspect, the compound is not a compound of Formula I-j :
Figure imgf000080_0001
or a tautomer thereof, and/or a pharmaceutically acceptable salt thereof, wherein
R21 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R16;
L11 is selected from the group consisting -(C(R18)2)j-,
-(C(R18)2)q-C(0)-(C(R18)2)r-, -(C(R18)2)q-C(0)N(R18)-(C(R18)2)r-,
-(C(R18)2)q-N(R18)C(0)-(C(R8)2)r-, -(C(R18)2)q-N(R18)S(0)2-(C(R18)2)r-,
-(CH2)q-S(0)2N(R18)-(CH2)r-, -S-, -O- and -NR18-;
q is 0 or 1 ;
r is 0 or 1 ;
L12 is selected from the group consisting a covalent bond, -C(0)N(R18)-, -N(R18)C(0)-, -N(R18)S(0)2-, and -S(0)2N(R18)-;
R15 is phenyl, 5-membered heteroaryl, 6-membered heteroaryl, 5-membered heterocycloalkyl or 6-membered heterocycloalkyl; wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 4 R12, wherein each R12 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR17, -SH, -SR17, -NR20R20, halo, cyano, nitro, -COH, -COR17, -C02H, -C02R17, -CONR20R20, -OCOR17, -OC02R17, -OCONR20R20, -NR20COR20, -NR20CO2R20, -SOR17, -S02R17, -SO2NR20R20, and -NR20SO2R17; each R is independently selected from the group consisting of halo and lower alkyl (preferably methyl or ethyl) optionally substituted with 1-3 halo; or two adjacent R16 on a phenyl ring form a 5- or 6-membered cycloalkyl or heterocycloalkyl fused with the phenyl ring;
R17 is lower alkyl (preferably methyl or ethyl);
R18 is hydrogen or lower alkyl (preferably methyl or ethyl); and
each R20 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R20 together with the atom(s) attached thereto form a 4- to 6-membered heterocycloalkyl ring. In one aspect, the compound is not a compound of Formula I-j:
Figure imgf000081_0001
or a tautomer thereof, and/or a pharmaceutically acceptable salt thereof, wherein
R21 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R16;
L11 is selected from the group consisting -C(R18)2-, -S-, -O- and -NR18-;
L12 is selected from the group consisting a covalent bond, -C(0)N(R18)-, -N(R18)C(0)-, -N(R18)S(0)2-, and -S(0)2N(R18)-;
R15 is phenyl, 5-membered heteroaryl, 6-membered heteroaryl, 5-membered heterocycloalkyl or 6-membered heterocycloalkyl; wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 4 R12, wherein each R12 is independently selected from the group consisting of lower alkyl, lower haloalkyl, OH, OR17, SH, SR17, NR20R20, halo, cyano, nitro, COH, COR17, C02H, -C02R17, CONR20R20, OCOR17, OC02R17, OCONR20R20, NR20COR20, -NR20CO2R20, -SOR17, S02R17, -SO2NR20R20, and NR20SO2R17;
each R16 is independently selected from the group consisting of halo and lower alkyl (preferably methyl or ethyl) optionally substituted with 1-3 halo;
R , 17 i ·s lower alkyl (preferably methyl or ethyl); R18 is hydrogen or lower alkyl (preferably methyl or ethyl); and each R20 is independently hydrogen or lower alkyl (preferably methyl or ethyl), or two R20 together with the atom(s) attached thereto form a 4- to 6-membered ring.
Methods of Treatment
[0094] In one aspect, the present technology provides a method of treating a condition or disorder mediated by fascin activity in a subject in need thereof which method comprises administering to the subject a therapeutically effective amount of a compound described herein.
[0095] In one embodiment the present technology provides a method of inhibiting fascin activity, comprising administering an effective amount of a fascin inhibitor to a cell to thereby inhibit fascin activity in the cell, wherein the fascin inhibitor is a compound described herein. In some embodiments, the fascin inhibitor has a fascin inhibition IC50 of no more than 100 μΜ. In some embodiments, the fascin inhibitor has a fascin inhibition IC50 of no more than 50 μΜ. In some embodiments, the fascin inhibitor has a fascin inhibition IC50 of no more than 20 μΜ. In some embodiments, the fascin inhibitor has a fascin inhibition IC50 of no more than 8 μΜ.
[0096] In some embodiments, the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage.
[0097] In some embodiments, the condition or disorder is a metastatic cancer.
[0098] In some embodiments, the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer. In some embodiments, the cancer is lung cancer, breast cancer or prostate cancer.
[0099] In another aspect, the present technology provides is a method of inhibiting fascin activity, comprising administering an effective amount of a fascin inhibitor to a cell to thereby inhibit fascin activity in the cell, wherein the fascin inhibitor is a compound described herein. [0100] In some embodiments, the cell is in an animal. In some embodiments, the cell has been removed from an animal. In some embodiments, the animal is a human. In some embodiments, the human suffers from a disease or condition.
[0101] In some embodiments, the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage. In some embodiments, the condition or disorder is a metastatic cancer.
[0102] In some embodiments, the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer. In some embodiments, the cancer is lung cancer, breast cancer, or prostate cancer.
[0103] Agents that modulate the activity of fascin can be used to treat a variety of diseases and conditions. For example, as illustrated herein, fascin promotes actin bundling and plays a key role in cell migration and metastasis of cancer cells. Hence, modulators and inhibitors of fascin can be used to treat and inhibit metastatic cancer.
[0104] However, fascin also plays a role in other diseases and conditions. For example, neurite shape and trajectory is modulated by fascin (Kraft et al, Phenotypes of Drosophila brain neurons in primary culture reveal a role for fascin in neurite shape and trajectory, J. Neurosci, 26(34):8734-47 (2006)). Fascin is also involved in neuronal degeneration (Fulga et al, Abnormal bundling and accumulation of F-actin mediates tau-induced neuronal degeneration in vivo Nat Cell Biol. 9(2): 139-48 (2007)). In addition, fascin plays a role in Hodgkin's disease (Pinkus et al, Fascin, a sensitive new marker for Reed-Sternberg cells of Hodgkin's disease, Am J Pathol. 150(2):543-562 (1997)). Fascin also plays a role in processing and presenting antigens, for example, on antigen presenting cells (Mosialos et al, Circulating human dendritic cells differentially express high levels of a 55-kd actin-bundling protein. Am. J. Pathol. 148(2):593-600 (1996); Said et al The role of follicular and inter digitating dendritic cells in HIV-related lymphoid hyperplasia: localization of fascin. Mod Pathol. 10(5):421-27 (1997)). Moreover, fascin also plays a role in ischemic injury (Meller et al, Ubiquitin proteasome-mediated synaptic reorganization: a novel mechanism underlying rapid ischemic tolerance, J Neurosci. 28(l):50-9 (2008)). [0105] Provided herein are agents that modulate fascin activity and that can be used for methods of treating and inhibiting metastatic cancer, neuronal disorders, neuronal degeneration, inflammatory conditions, viral infections, bacterial infections, lymphoid hyperplasia, Hodgkin's disease, and ischemia-related tissue damage.
[0106] Tumor metastasis is the major cause of death of cancer patients (Weiss 2000, Fidler 2003). Thus, inhibition or prevention of tumor metastasis will significantly increase the survival rate of cancer patients, allow more moderate radiation or chemotherapy with less side-effects, and control the progression of solid tumors.
[0107] Tumor cell migration and invasion are critical steps in the process of tumor metastasis (Partin et al. 1989, Aznavoorian et al. 1993, Condeelis et al. 2005). For cell migration to proceed, the actin cytoskeleton must be reorganized by forming polymers and bundles to affect the dynamic changes of cell shapes (Jaffe et al. 2005, Matsudaira 1994, Otto 1994). Individual actin filaments are flexible and elongation of individual filaments per se is insufficient for membrane protrusion which is necessary for cell migration. Bundling of actin filaments provides rigidity to actin filaments for protrusion against the compressive force from the plasma membrane (Mogilner et al. 2005).
[0108] One of the critical actin-bundling proteins is fascin. Fascin is the primary actin cross-linker in filopodia, which are membrane protrusions critical for the migration and metastasis of cancer cells. Fascin is required to maximally cross-link the actin filaments into straight, compact, and rigid bundles. Elevated expressions of fascin m NA and protein in cancer cells have been correlated with aggressive clinical course, poor prognosis and shorter survival. Accordingly, metastatic cancer can be treated, prevented and/or inhibited by administering fascin inhibitors as described herein.
[0109] In addition, a cancer at any stage of progression can be treated by the method of the present technology, such as primary, metastatic, and recurrent cancers. In some
embodiments, cancers are treated before metastasis is detected, for example, to inhibit metastatic cancer from developing. In other embodiments, cancers are treated when metastasis is detected, for example, to inhibit further metastasis and progression of the cancer.
[0110] Compounds described herein, or pharmaceutically acceptable salts thereof, can also be used to treat autoimmune deficiency syndrome-associated Kaposi's sarcoma, cancer of the adrenal cortex, cancer of the cervix, cancer of the endometrium, cancer of the esophagus, cancer of the head and neck, cancer of the liver, cancer of the pancreas, cancer of the prostate, cancer of the thymus, carcinoid tumors, chronic lymphocytic leukemia, Ewing's sarcoma, gestational trophoblastic tumors, hepatoblastoma, multiple myeloma, non-small cell lung cancer, retinoblastoma, or tumors in the ovaries. A cancer at any stage of progression can be treated or detected, such as primary, metastatic, and recurrent cancers. Information regarding numerous types of cancer can be found, e.g., from the American Cancer Society (www.cancer.org), or from, e.g., Wilson et al. (1991) Harrison's Principles of Internal Medicine, 12th Edition, McGraw-Hill, Inc.
[0111] In some embodiments, method are provided for treating or inhibiting metastatic cancer in an animal, for example, for human and veterinary uses, which include administering to a subject animal {e.g., a human), a therapeutically effective amount of a compound described herein, or pharmaceutically acceptable salt thereof. In some embodiments, the cell has been removed from an animal.
[0112] Treatment of, or treating, a disease or condition {e.g., cancer) is intended to include the alleviation of or diminishment of at least one symptom typically associated with the disease or condition. The treatment also includes alleviation or diminishment of more than one symptom of the disease or condition. The treatment may cure the disease or condition, for example, by eliminating the symptoms and/or the source of the disease or condition. For example, treatment can cure the cancer by substantially inhibiting metastasis of the cancer cells so that removal or killing of the primary tumor or cancer cell(s) substantially eliminates the cancer. Treatment can also arrest or inhibit the metastasis of the cancer and/or tumor cells without directly killing or promoting the apoptosis of cancer cells.
[0113] Fascin functions in a variety of cellular functions that play critical roles in modulating the growth, movement and interaction of cells. However the actin bundling function of fascin is directly involved in tumor metastasis and invasive growth.
[0114] The anti-metastatic activity of fascin {e.g., in the presence of various test agents or therapeutic agents like those described herein) can be evaluated against varieties of cancers using methods described herein and available to one of skill in the art. Anti-cancer activity, for example, can be determined by identifying the dose that inhibits 50% cancer cell metastasis (IC50) of a compound or composition as described herein.
[0115] Also provided is a method for evaluating a therapeutically effective dosage for treating a cancer {e.g. , inhibiting metastasis) with a compound described herein, or pharmaceutically acceptable salt thereof, that includes determining the IC50 of the agent in vitro. Such a method permits calculation of the approximate amount of agent needed per volume to inhibit cancer cell migration. Such amounts can be determined, for example, by standard microdilution methods. In some embodiments, the compound or composition as described herein can be administered in multiple doses over an extended period of time, or intermittently.
Compositions
[0116] The compounds {e.g., fascin inhibitors) as described herein can be formulated as pharmaceutical compositions and administered to a mammalian host, such as a human patient in a variety of forms adapted to the chosen route of administration, i.e., orally or parenterally, by intravenous, intramuscular, topical, transdermally, intrathecally, ocularly, intranasally, intraperitoneally or subcutaneous routes.
[0117] The compounds {e.g., fascin inhibitors) described herein may be systemically administered, e.g., orally, in combination with a pharmaceutically acceptable vehicle such as an inert diluent or an assimilable edible carrier. They may be enclosed in hard or soft shell gelatin capsules, may be compressed into tablets, or may be incorporated directly with the food of the patient's diet. For oral therapeutic administration, the active compound may be combined with one or more excipients and used in the form of ingestible tablets, buccal tablets, troches, capsules, elixirs, suspensions, syrups, wafers, and the like. Such
compositions and preparations should contain at least 0.1% of active compound. The percentage of the compositions and preparations may, of course, be varied and may conveniently be between about 2 to about 60% of the weight of a given unit dosage form. The amount of active compound in such therapeutically useful compositions is such that an effective dosage level will be obtained.
[0118] The tablets, troches, pills, capsules, and the like may also contain the following: binders such as gum tragacanth, acacia, corn starch or gelatin; excipients such as dicalcium phosphate; a disintegrating agent such as corn starch, potato starch, alginic acid and the like; a lubricant such as magnesium stearate; and a sweetening agent such as sucrose, fructose, lactose or aspartame or a flavoring agent such as peppermint, oil of wintergreen, or cherry flavoring may be added. When the unit dosage form is a capsule, it may contain, in addition to materials of the above type, a liquid carrier, such as a vegetable oil or a polyethylene glycol. Various other materials may be present as coatings or to otherwise modify the physical form of the solid unit dosage form. For instance, tablets, pills, or capsules may be coated with gelatin, wax, shellac or sugar and the like. A syrup or elixir may contain the active compound, sucrose or fructose as a sweetening agent, methyl and propylparabens as preservatives, a dye and flavoring such as cherry or orange flavor. A material used in preparing any unit dosage form should be pharmaceutically acceptable and substantially nontoxic in the amounts employed. In addition, the active compound may be incorporated into sustained-release preparations and devices.
[0119] The active compounds described herein may also be administered intravenously or intraperitoneally by infusion or injection. Solutions of the active compound or its salts can be prepared in water, optionally mixed with a nontoxic surfactant. Dispersions can also be prepared in glycerol, liquid polyethylene glycols, triacetin, and mixtures thereof and in oils. Under ordinary conditions of storage and use, these preparations contain a preservative to prevent the growth of microorganisms.
[0120] The pharmaceutical dosage forms suitable for injection or infusion can include sterile aqueous solutions or dispersions or sterile powders comprising the active ingredient which are adapted for the extemporaneous preparation of sterile injectable or infusible solutions or dispersions, optionally encapsulated in liposomes. In all cases, the ultimate dosage form should be sterile, fluid and stable under the conditions of manufacture and storage. The liquid carrier or vehicle can be a solvent or liquid dispersion medium
comprising, for example, water, ethanol, a polyol (for example, glycerol, propylene glycol, liquid polyethylene glycols, and the like), vegetable oils, nontoxic glyceryl esters, and suitable mixtures thereof. The proper fluidity can be maintained, for example, by the formation of liposomes, by the maintenance of the required particle size in the case of dispersions or by the use of surfactants. The prevention of the action of microorganisms can be brought about by various antibacterial and antifungal agents, for example, parabens, chlorobutanol, phenol, sorbic acid, thimerosal, and the like. In many cases, it will be preferable to include isotonic agents, for example, sugars, buffers or sodium chloride.
Prolonged absorption of the injectable compositions can be brought about by the use in the compositions of agents delaying absorption, for example, aluminum monostearate and gelatin.
[0121] Sterile injectable solutions are prepared by incorporating the active compound in the required amount in the appropriate solvent with several of the other ingredients enumerated above, as required, followed by filter sterilization. In the case of sterile powders for the preparation of sterile injectable solutions, the preferred methods of preparation are vacuum drying and the freeze drying techniques, which yield a powder of the active ingredient plus any additional desired ingredient present in the previously sterile-filtered solutions.
[0122] For topical administration, the present compounds may be applied in pure form, i.e., when they are liquids. However, it will generally be desirable to administer them to the skin as compositions or formulations, in combination with a dermatologically acceptable carrier, which may be a solid or a liquid.
[0123] Useful solid carriers include finely divided solids such as talc, clay, microcrystalline cellulose, silica, alumina and the like. Useful liquid carriers include water, alcohols or glycols or water-alcohol/glycol blends, in which the present compounds can be dissolved or dispersed at effective levels, optionally with the aid of non-toxic surfactants. Adjuvants such as fragrances and additional antimicrobial agents can be added to optimize the properties for a given use. The resultant liquid compositions can be applied from absorbent pads, used to impregnate bandages and other dressings, or sprayed onto the affected area using pump-type or aerosol sprayers.
[0124] Thickeners such as synthetic polymers, fatty acids, fatty acid salts and esters, fatty alcohols, modified celluloses or modified mineral materials can also be employed with liquid carriers to form spreadable pastes, gels, ointments, soaps, and the like, for application directly to the skin of the user.
[0125] Examples of useful dermatological compositions which can be used to deliver the compounds described herein, or pharmaceutically acceptable salts thereof, to the skin are known to the art; for example, see Jacquet et al. (U.S. Pat. No. 4,608,392), Geria (U.S. Pat. No. 4,992,478), Smith et al. (U.S. Pat. No. 4,559,157) and Wortzman (U.S. Pat. No.
4,820,508).
[0126] Useful dosages of the compounds described herein, or pharmaceutically acceptable salts thereof, can be determined by comparing their in vitro activity, and in vivo activity in animal models. Methods for the extrapolation of effective dosages in mice, and other animals, to humans are known to the art; for example, see U.S. Pat. No. 4,938,949.
[0127] Generally, the concentration of the compounds described herein, or
pharmaceutically acceptable salts thereof, in a liquid composition, such as a lotion, will be about 0.01 wt%, about 0.1 wt%, about 1.0 wt%, about 2.0 wt%, about 3.0 wt%, about 4.0 wt%, about 5.0 wt%, about 10.0 wt%, about 25.0 wt%, or a range between and including any two of these values. The concentration in a semi-solid or solid composition such as a gel or a powder will be about 0.01 wt%, about 0.1 wt%, about 1.0 wt%, about 2.0 wt%, about 3.0 wt%, about 4.0 wt%, about 5.0 wt%, about 10.0 wt%, about 25.0 wt%, or a range between and including any two of these values.
[0128] The amount of the compound, or an active salt or derivative thereof, required for use in treatment will vary not only with the particular salt selected but also with the route of administration, the nature of the condition being treated and the age and condition of the patient and will be ultimately at the discretion of the attendant physician or clinician. In general, however, a suitable dose will be in the range of from about 1.0 to about 200 mg/kg, e.g., from about 1 to about 100 mg/kg of body weight per day, such as about 2.0 to about 100 mg/kg of body weight per day, such as about 3.0 to about 50 mg per kilogram body weight of the recipient per day, or in the range of about 5 to 20 mg/kg/day. Alternatively, the compositions can be administered five times a week on five consecutive days with a two day rest, or four times a week on four consecutive days with a three day rest, or every other day.
[0129] Methods for extrapolating effective dosages in mice and other animals, to humans are known in the art (See, for example, U.S. Patent No.: 4,938,949). For example, in some embodiments, compounds described herein, or pharmaceutically acceptable salts thereof, (for example those useful for the treatment of colon and/or ovarian cancer) may be administered at dosage levels of about 0.01 mg/kg to about 300 mg/kg, from about 0.1 mg/kg to about 250 mg/kg, from about 1 mg/kg to about 200 mg/kg, from about 1 mg/kg to about 150 mg/kg, from about 1 mg/kg to about 100 mg/kg, from about 1 mg/kg to about 90 mg/kg, from about 1 mg/kg to about 80 mg/kg, from about 1 mg/kg to about 70 mg/kg, from about 1 mg/kg to about 60 mg/kg, from about 1 mg/kg to about 50 mg/kg, from about 1 mg/kg to about 40 mg/kg, from about 1 mg/kg to about 30 mg/kg, from about 1 mg/kg to about 20 mg/kg, from about 5 mg/kg to about 100 mg/kg, from about 5 mg/kg to about 90 mg/kg, from about 5 mg/kg to about 80 mg/kg, from about 5 mg/kg to about 70 mg/kg, from about 5 mg/kg to about 60 mg/kg, from about 5 mg/kg to about 50 mg/kg, from about 5 mg/kg to about 40 mg/kg, from about 5 mg/kg to about 30 mg/kg, from about 5 mg/kg to about 20 mg/kg, from about 10 mg/kg to about 100 mg/kg, from about 10 mg/kg to about 90 mg/kg, from about 10 mg/kg to about 80 mg/kg, from about 10 mg/kg to about 70 mg/kg, from about 10 mg/kg to about 60 mg/kg, from about 10 mg/kg to about 50 mg/kg, from about 10 mg/kg to about 40 mg/kg, from about 10 mg/kg to about 30 mg/kg, from about 10 mg/kg to about 20 mg/kg, from about 20 mg/kg to about 100 mg/kg, from about 20 mg/kg to about 90 mg/kg, from about 20 mg/kg to about 80 mg/kg, from about 20 mg/kg to about 70 mg/kg, from about 20 mg/kg to about 60 mg/kg, from about 20 mg/kg to about 50 mg/kg, from about 20 mg/kg to about 40 mg/kg, from about 20 mg/kg to about 30 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect. In some embodiments, compounds may be administered at a dosage of about 1 mg/kg or greater, 5 mg/kg or greater; 10 mg/kg or greater, 15 mg/kg or greater, 20 mg/kg or greater, 25 mg/kg or greater, 30 mg/kg or greater, 35 mg/kg or greater, 40 mg/kg or greater, 45 mg/kg or greater, 50 mg/kg or greater, 60 mg/kg or greater, 70 mg/kg or greater, of body weight. It will also be appreciated that dosages smaller than 0.01 mg/kg or greater than 70 mg/kg (for example 70-200 mg/kg) can be administered to a subject.
[0130] In some embodiments, the compounds described herein may be used in
chemotherapy (i.e., to inhibit metastasis) and may be administered at higher dosage. For example, compounds to be used in chemotherapy may be administered from about 100 mg/kg to about 300 mg/kg, from about 120 mg/kg to about 280 mg/kg, from about 140 mg/kg to about 260 mg/kg, from about 150 mg/kg to about 250 mg/kg, from about 160 mg/kg to about 240 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect.
[0131] In certain other embodiments, the compounds described herein may be used in supportive therapy (e.g., as an adjuvant to surgery or irradiation in a range of common types of tumor) and may be administered at lower dosage. For example, compounds to be used in supportive therapy may be administered from about 1 mg/kg to about 30 mg/kg, from about 1 mg/kg to about 25 mg/kg, from about 5 mg/kg to about 20 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect.
[0132] In certain other embodiments, the compounds described herein may be used for treating metastatic cancer (e.g., ovarian and/or colon cancer) and may be administered at an intermediate dosage. For example, compounds to be used in supportive therapy may be administered from about 1 mg/kg to about 100 mg/kg, from about 1 mg/kg to about 80 mg/kg, from about 5 mg/kg to about 70 mg/kg, from about 10 mg/kg to about 70 mg/kg, from about 10 mg/kg to about 60 mg/kg, from about 20 mg/kg to about 70 mg/kg, from about 20 mg/kg to about 60 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect. [0133] The compound is conveniently administered in unit dosage form; for example, containing 45 to 3000 mg, conveniently 90 to 2250 mg, most conveniently, 450 to 1500 mg of active ingredient per unit dosage form. In some embodiments, the compound is administered at dosages of about 1 to about 100 mg/kg.
[0134] Ideally, the active ingredient should be administered to achieve peak plasma concentrations of the active compound of from about 0.5 nM to about 10 μΜ, or about 1 nM to 1 μΜ, or about 10 nM to about 0.5 μΜ. This may be achieved, for example, by the intravenous injection of a 0.05 to 5% solution of the active ingredient, optionally in saline, or orally administered as a bolus containing about 20-2000 mg of the active ingredient.
Desirable blood levels may be maintained by continuous infusion to provide about 0.2 to 1.0 mg/kg/hr or by intermittent infusions containing about 0.4 to 20 mg/kg of the active ingredient(s). The desired dose may conveniently be presented in a single dose or as divided doses administered at appropriate intervals, for example, as two, three, four or more sub- doses per day. The sub-dose itself may be further divided, e.g., into a number of discrete loosely spaced administrations; such as multiple inhalations from an insufflator or by application of a plurality of drops into the eye.
[0135] Compounds described herein, or pharmaceutically acceptable salts thereof, are useful as therapeutic agents administered for inhibition of cell migration and treatment of metastatic cancer. Such cancers include but are not limited to, e.g., cancers involving the animal's head, neck, lung, mesothelioma, mediastinum, esophagus, stomach, pancreas, hepatobiliary system, small intestine, colon, colorectal, rectum, anus, kidney, ureter, bladder, prostate, urethra, penis, testis, gynecological organs, ovaries, breast, endocrine system, skin, or central nervous system. Thus, for example, the cancer can be a breast cancer, a leukemia, a lung cancer, a colon cancer, a central nervous system cancer, a melanoma, an ovarian cancer, a renal cancer, or a prostate cancer.
[0136] Additionally, compounds described herein, or pharmaceutically acceptable salts thereof, such as the exemplary salts described herein, may be useful as pharmacological tools for the further investigation of the inhibition of cell migration.
[0137] The compounds described herein, or pharmaceutically acceptable salts thereof, can also be administered in combination with other therapeutic agents that are effective for treating or controlling the spread of cancerous cells or tumor cells. [0138] Moreover, the compounds described herein, or pharmaceutically acceptable salts thereof, can be tested in appropriate animal models. For example, the compounds described herein, or pharmaceutically acceptable salts thereof, can be tested in animals with known tumors, or animals that have been injected with tumor cells into a localized area. The degree or number of secondary tumors that form over time is a measure of metastasis and the ability of the compounds to inhibit such metastasis can be evaluated relative to control animals that have the primary tumor but receive no test compounds.
[0139] The compounds described herein, or pharmaceutically acceptable salts thereof, will also find use in treatment of brain disorders (Kraft et al, J. Neurosci. 2006 Aug
23;26(34):8734-47); Hodgkin's disease (Pinkus et al, Am J Pathol. 1997 Feb;150(2):543- 62); virus infection (Mosialos et al, Am J Pathol. 1996 Feb;148(2):593-600); neuronal degeneration (Fulga et al, Nat Cell Biol. 2007 Feb:9(2): 139-48); lymphoid hyperplasia (Said et al, Mod Pathol. 1997 May;10(5):421-7); and ischemia (Meller et al, J Neurosci. 2008 Jan 2;28(l):50-9.)
General Synthetic Methods
[0140] The compounds described herein are commercially available or can be prepared from readily available starting materials using the following general methods and procedures. It will be appreciated that where typical or preferred process conditions (i.e., reaction temperatures, times, mole ratios of reactants, solvents, pressures, etc) are given, other process conditions can also be used unless otherwise stated. Optimum reaction conditions may vary with the particular reactants or solvent used, but such conditions can be determined by one skilled in the art by routine optimization procedures.
[0141] Additionally, as will be apparent to those skilled in the art, conventional protecting groups may be necessary to prevent certain functional groups from undergoing undesired reactions. Suitable protecting groups for various functional groups as well as suitable conditions for protecting and deprotecting particular functional groups are well known in the art. For example, numerous protecting groups are described in T. W. Greene and G. M. Wuts, Protecting Groups in Organic Synthesis, Third Edition, Wiley, New York, 1999, and references cited therein.
[0142] Furthermore, the compounds described herein may contain one or more chiral centers. Accordingly, if desired, such compounds can be prepared or isolated as pure stereoisomers, i.e., as individual enantiomers or diastereomers, or as stereoisomer-enriched mixtures. All such stereoisomers (and enriched mixtures) are included within the scope of this invention, unless otherwise indicated. Pure stereoisomers (or enriched mixtures) may be prepared using, for example, optically active starting materials or stereoselective reagents well-known in the art. Alternatively, racemic mixtures of such compounds can be separated using, for example, chiral column chromatography, chiral resolving agents and the like.
[0143] The starting materials for the following reactions are generally known compounds or can be prepared by known procedures or obvious modifications thereof. For example, many of the starting materials are available from commercial suppliers such as Aldrich Chemical Co. (Milwaukee, Wisconsin, USA), Bachem (Torrance, California, USA),
Emka-Chemce or Sigma (St. Louis, Missouri, USA). Others may be prepared by procedures, or obvious modifications thereof, described in standard reference texts such as Fieser and Fieser's Reagents for Organic Synthesis, Volumes 1-15 (John Wiley and Sons, 1991), Rodd's Chemistry of Carbon Compounds, Volumes 1-5 and Supplemental (Elsevier Science Publishers, 1989), Organic Reactions, Volumes 1-40 (John Wiley and Sons, 1991), March's Advanced Organic Chemistry, (John Wiley and Sons, 4th Edition), and Larock's
Comprehensive Organic Transformations (VCH Publishers Inc., 1989).
[0144] The various starting materials, intermediates, and compounds described herein may be isolated and purified where appropriate using conventional techniques such as
precipitation, filtration, crystallization, evaporation, distillation, and chromatography.
Characterization of these compounds may be performed using conventional methods such as by melting point, mass spectrum, nuclear magnetic resonance, and various other
spectroscopic analyses.
[0145] Amide coupling reagents are known in the art and may include, but are not limited to, amininum and phosphonium based reagents. Aminium salts include N-[(dimethylamino)- 1H- 1 ,2,3-triazolo[4,5-b]pyridine- 1 -ylmethylene]-N-methylmethanaminium
hexafluorophosphate N-oxide (HATU), N-[(lH-benzotriazol-l- yl)(dimethylamino)methylene] -N-methylmethanaminium hexafluorophosphate N-oxide (HBTU), N- [( 1 H-6-chlorobenzotriazol- 1 -yl)(dimethylamino)methylene] -N- methylmethanaminium hexafluorophosphate N-oxide (HCTU), N-[(lH-benzotriazol-l- yl)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate N-oxide (TBTU), and N-[(lH-6-chlorobenzotriazol-l-yl)(dimethylamino)methylene]-N-methylmethanaminium tetrafluoroborate N-oxide (TCTU). Phosphonium salts include 7-azabenzotriazol-l-yl-N- oxy-tris(pyrrolidino)phosphonium hexafluorophosphate (PyAOP) and benzotriazol-l-yl-N- oxy-tris(pyrrolidino)phosphonium hexafluorophosphate (PyBOP). Amide formation step may be conducted in a polar solvent such as dimethylformamide (DMF) and may also include an organic base such as diisopropylethylamine (DIEA) or dimethylaminopyridine (DMAP).
[0146] Cross-coupling reactions are well known in the art and, for example, are reported in Anna Roglans, et al. Diazonium Salts as Substrates in Palladium-Catalyzed Cross-Coupling Reactions, Chem. Rev., 2006, 106 (11):4622-4643; Brad M. Rosen, et al, Nickel-Catalyzed Cross-Couplings Involving Carbon-Oxygen Bonds, Percec Chem. Rev., 2011, 111 (3): 1346- 1416; Jean-Pierre Corbet, et al, Selected Patented Cross-Coupling Reaction Technologies, Chem. Rev., 2006, 106 (7):2651-2710; Gwilherm Evano et al, Copper-Mediated Coupling Reactions and Their Applications in Natural Products and Designed Biomolecules Synthesis, Chem. Rev., 2008, 108 (8):3054— 3131; Benny Bogoslavsky, et al, Formation of a Carbon- Carbon Triple Bond by Coupling Reactions In Aqueous Solution, Science 308 (5719): 234- 235 (2005); and M. Lafrance, et al., Catalytic Intermolecular Direct Arylation of
Perfiuorobenzenes, J. Am. Chem. Soc. 128 (27): 8754-8756 (2006); Norio Miyaura, et al, "A new stereospecific cross-coupling by the palladium-catalyzed reaction of 1- alkenylboranes with 1-alkenyl or 1-alkynyl halides," Tetrahedron Letters, 1979, 20(36):
3437-3440; P.E. Fanta, "The UUmann Synthesis of Biaryls", Synthesis, 1974,1974: 9-21; M. Gomberg, and W. E. Bachmann, J. Am. Chem. Soc, 1924, 42(10):2339-2343; R. J. P. Corriu and Masse, J. P. "Activation of Grignard reagents by transition-metal complexes. A new and simple synthesis of trans-stilbenes and polyphenyls," Journal of the Chemical Society,
Chemical Communications, 1972, (3): 144a.
[0147] In some aspects, compounds of Formula I can be prepared according to Scheme 1 or other methods described herein.
Scheme 1
Figure imgf000094_0001
Formula I wherein L2 is -CONH- [0148] In some aspects, compounds of Formula Ilia wherein R3 is hydrogen (Compound 2- 3) can be prepared from lH-indazol-3 -amine (Compound 2-1, availabe from e.g., Enamine LLC) according to Scheme 2 or other methods described herein.
Scheme 2
Figure imgf000095_0001
2-2 2-3
[0149] In some aspects, compounds of Formula Villa wherein R3 is 4-chloro (Compound 3-2 or 3-3) from 4-chloro-lH-pyrazolo[3,4-c]pyridin-3-amine (Compound 3-1, available from, e.g., Novasyn Organics PVT. Ltd.) can be prepared according to Scheme 3 or other methods described herein. Compounds of formula 2-4 are generally available from commercial sources or can prepared by methods known in the art. For example, 4- (bromomethyl)benzonitrile, 3-(bromomethyl)benzonitrile, 2-fluorobenzyl bromide, 3- fluorobenzyl bromide, 3-chlorobenzyl bromide, 4-chlorobenzyl bromide, 4-fluorobenzyl bromide, 4-methylbenzyl bromide, 3,4-difluorobenzyl bromide and 2,3-difluoro-4- methylbenzyl bromide, etc., are available from Sigma-Aldrich Co. LLC.
Scheme 3
Figure imgf000095_0002
3-2 3-3
[0150] All publications, patent applications, issued patents, and other documents referred to in this specification are herein incorporated by reference as if each individual publication, patent application, issued patent, or other document was specifically and individually indicated to be incorporated by reference in its entirety. Definitions that are contained in text incorporated by reference are excluded to the extent that they contradict definitions in this disclosure.
[0151] The present technology, thus generally described, will be understood more readily by reference to the following Examples, which is provided by way of illustration and is not intended to be limiting of the present technology. Other compounds were or may be prepared similarly or by methods known in the art.
EXAMPLES
Example 1: Compound Preparation A.
Figure imgf000096_0001
Intermediate 1 Compound 1
Preparation of Intermediate 1: l-(4-(trifluoromethyl)benzyl)-lH-indazol-3-amine
[0152] A mixture of KOH (6.95 g, 124 mmol) in DMSO (165 mL) was stirred at room temperature for 5 min. lH-indazol-3 -amine (8.25 g, 62.0 mmol) was then added in one portion. The resulting mixture was stirred at room temperature for 5 min. A solution of 4- trifluoromethylbenzyl bromide (15.6 g, 65.1 mmol) in DMSO (83 ml) was then added dropwise over 30 min. When the addition was complete, the resulting mixture was stirred at room temperature for an additional 1 h. The mixture was quenched by the addition of water (200 mL). The mixture was then extracted with CH2CI2 (3 X 100 mL). The combined extracts were washed with H20 (2 X 100 mL), brine (1 X 100 mL), then dried over MgS04, filtered and concentrated in vacuo. Purification by flash chromatography (Silica, 200 g, 10 - 100% EtOAc/Hexanes) gave l-(trifluoromethylbenzyl)-lH-indazol-3 -amine (21.79 g, 56.6 mmol, 91.3 % yield) as an off-white crystalline solid. MS (ESI) m/z: 292 (M+H)+ Preparation of Compound 1: 4,5-dimethyl-N-(l-(4-(trifluoromethyl)benzyl)-lH-indazol-3- yl)furan-2-carboxamide
[0153] To a solution of intermediate 1 (29.2 mg, 0.10 mmol), 4,5-dimethylfuran-2- carboxylic acid (15.4 mg, 0.11 mmol), and triethylamine (45.2 μΐ^, 0.30 mmol) in
dichloromethane (2 mL) was added 2,4,6-tripropyl-l,3,5,2,4,6-trioxatriphosphinane 2,4,6- trioxide (118.6 μί, 0.20 mmol). The resulting reaction mixture was stirred at room temp for 3h and then the solvent was removed.
The crude product was puified by Prep. HPLC (sunfire 5μ 100 mm column, MeOH/H20 as solvents). 26 mg of 4,5-dimethyl-N-(l-(4-(trifluoromethyl) benzyl)- lH-indazol-3 -yl)furan-2- carboxamide obtained as a solid. MS (ESI) m/z: 414 (M+H)+
Preparation of Compounds 2 to 47 and 49 to 56 in Table 1
[0154] These compounds were prepared by following procedures similar to that described above in a similar yield.
B:
Figure imgf000097_0001
Intermediate 2 Compound 48
Preparation of Intermediate 2: N-(lH-indazol-3-yl)furan-3-carboxamide
[0155] To a solution of lH-indazol-3 -amine (1.33 g, 10 mmol), furan-2-carboxylic acid (1.23 g, 11 mmol), and triethylamine (452 μΐ^, 30 mmol) in dichloromethane (20 mL) was added 2,4,6-tripropyl-l,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide (1.12 mL, 20 mmol). The resulting reaction mixture was stirred at room temp for 3h and then the solvent was removed. The crude product was puified by flash chromatography (Silica, lOOg, 10 - 100% EtOAc/DCM) gave N-(lH-indazol-3-yl)furan-3-carboxamide (1.27 g, 5.6 mmol, 56 % yield) as a white crystalline solid. MS (ESI) m/z: 228 (M+H)+
C:
Preparation of Compound 48: N-(l-(3-(trifluoromethyl)benzyl)-lH-indazol-3-yl)furan-3- carboxamide [0156] A mixture of KOH (11.2 mg, 0.20 mmol) in DMSO (1 mL) was stirred at room temperature for 5 min. intermediate 2 (22.7 mg, 0.10 mmol) was then added in one portion. The resulting mixture was stirred at room temperature for 5 min. A solution of 3- trifluoromethylbenzyl bromide (23.9 mg, 0.10 mmol) in DMSO (1 mL) was then added dropwise. The resulting reaction mixture was stirred at room temperature overnight. The crude product was puified by Prep. HPLC (sunfire 5μ 100mm column, MeOH/H20 as solvents). 12 mg of N-(l-(3-(trifluoromethyl)benzyl)-lH-indazol-3-yl)furan-3-carboxamide obtained as a solid. MS (ESI) m/z: 386 (M+H)+
D: Preparation of Compounds 57 and 58
[0157] Compounds 57 and 58 were prepared by following procedures similar to that described for making compound 48 in a similar yield.
E : Preparation of Compound 91: l-(( 6-(trifluoromethyl)pyridine-3-yl)methyl)-lH-indazol-3- amine
Figure imgf000098_0001
Example 91 Example 92
[0158] A mixture of KOH (6.95 g, 124 mmol) in DMSO (165 mL) was stirred at room temperature for 5 min. lH-indazol-3 -amine (8.25 g, 62.0 mmol) was then added in one portion. The resulting mixture was stirred at room temperature for 5 min. A solution of 5- (chloromethyl)-2-(trifluoromethyl)pyridine (12.7 g, 65.1 mmol) in DMSO (83 mL) was then added dropwise over 30 min. When the addition was complete, the resulting mixture was stirred at room temperature for an additional 1 h. The mixture was quenched by the addition of water (200 mL). The mixture was then extracted with CH2C12 (3 X 100 mL). The combined extracts were washed with H2O (2 X 100 mL), brine (1 X 100 mL), then dried over MgS04, filtered and concentrated in vacuo. Purification by flash chromatography
(Silica, 200g, 10 - 100% EtOAc/Hexanes) gave l-((6-(trifluoromethyl)pyridine-3-yl)methyl)- lH-indazol-3 -amine (14.9 g, 50.9 mmol, 82 % yield) as an off-white crystalline solid. MS (ESI) m/z: 293 (Μ+Η)+·
F: Preparation of Compound 92: N-(l-((6-(trifluoromethyl)pyridine-3-yl)methyl)-lH- indazol-3-yl)furan-3-carboxamide
[0159] To a solution of example 91 (29.3 mg, 0.10 mmol), furan-3-carboxylic acid (15.4 mg, 0.11 mmol), and triethylamine (45.2 μΐ, 0.30 mmol) in Dichloromethane (2 mL) was added 2,4,6-tripropyl-l,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide (118.6 μΐ, 0.20 mmol). The resulting reaction mixture was stirred at room temp for 3h and then the solvent was removed. The crude product was puified by Prep. HPLC (sunfire 5u 100mm column, MeOH/H20 as solvents). 26 mg of N-(l-((6-(trifluoromethyl)pyridine-3-yl)methyl)-lH- indazol-3-yl)furan-3-carboxamide was obtained as a solid. MS (ESI) m/z: 387 (Μ+Η)+·
G: Preparation of Compounds 93-142
Figure imgf000099_0001
Example 137 Example 149
[0160] Additional examples (93 to 142) were prepared by procedures similar to that described for making Example 91 and 92 in a similar yield.
H: Preparation of Compound 149: l-(4-(trifluoromethyl)benzyl)-4-chloro-lH-pyrazolo(3,4- c)pyridine-3-methylamine
[0161] To a solution of example 137 (32.6 g, 0.10 mmol) in THF (2 mL) was added iodomethane (42.6 mg, 0.30 mmol), and triethylamine (30.5 mgl, 0.30 mmol). The resulting reaction mixture was sealed and heated at 100 degree for 3 days and then the solvent was removed. The crude product was purified by Prep. HPLC (sunfire 5u 100mm column, MeOH/H20 as solvents) to yield l-(4-(trifluoromethyl)benzyl)-4-chloro-lH-pyrazolo(3,4- c)pyridine-3-methylamine (16 mg, 0.047 mmol, 47 % yield) as a gum. MS (ESI) m/z: 341
(Μ+Η)+· I: Preparation of Compound 150: N-(l-(4-(trifluoromethyl)benzyl)-4-chloro-lH- pyrazolo(3, 4-c)pyridyl)-3-acetamide
Figure imgf000100_0001
Example 137 Example 150
[0162] To a solution of example 137 (32.6 g, 0.10 mmol) in THF (2 mL) was added acetyl chloride (15.6 mg, 0.20 mmol), and triethylamine (30.5 mgl, 0.30 mmol). The resulting reaction mixture was stirred at room temperature for 5 hours and then the solvent was removed. The crude product was purified by Prep. HPLC (sunfire 5u 100 mm column, MeOH/H20 as solvents) to yield N-(l-(4-(trifluoromethyl)benzyl)-4-chloro-lH-pyrazolo(3,4- c)pyridyl)-3-acetamide (23 mg, 0.0625 mmol, 62.5 % yield) as a white solid MS (ESI) m/z: 369 (M+H)+.
J: Preparation of Compounds 151 to 153
[0163] The examples 151 to 153 were prepared by procedures similar to that described for making Example 150 in a similar yield.
K: Preparation of Compound 143: 3-Bromo-l-(4-(trifluoromethyl)benzyl)-lH-indazole
Figure imgf000100_0002
Example 143 Example 144
[0164] A mixture of KOH (1.12 g, 20 mmol) in DMSO (50 mL) was stirred at room temperature for 5 min. 3-bromo-lH-indazole (1.97 g, 10 mmol) was then added in one portion. The resulting mixture was stirred at room temperature for 5 min. A solution of 1- (bromomethyl)-4-(trifluoromethyl)benzene (3.6 g, 15 mmol) in DMSO (5 mL) was then added dropwise over 10 min. When the addition was complete, the resulting mixture was stirred at room temperature for an additional 1 h. The mixture was quenched by the addition of water (200 mL). The mixture was then extracted with CH2C12 (3 X 100 mL). The combined extracts were washed with ¾() (2 X 100 mL), brine (1 X 100 mL), then dried over MgS0 , filtered and concentrated in vacuo. Purification by flash chromatography
(Silica, 200g, 10 - 100% EtOAc/Hexanes) gave 3-Bromo-l-(4-(trifluoromethyl)benzyl)-lH- indazole (3.1 g, 8.7 mmol, 87 % yield) as an off-white crystalline solid. MS (ESI) m/z:
355and 357 (Μ+Η)+·
L: Preparation of Compound 144: 3-Phenyl-l-(4-(trifluoromethyl)benzyl)-lH-indazole
[0165] Cesium carbonate (65 mg, 0.20 mmol), 3-Bromo-l-(4-(trifluoromethyl)benzyl)-lH- indazole (35.6 mg, 0.10 mmol), phenylboronic acid (18.2 mg, 0.15 mmol)and PdCL^dppf) (7.2 mg, 0.01 mmol)were suspened in dioxane (5 mL) and degassed with argon for 5 minutes. The reaction was sealed and heated at 90 degree overnight. The crude product was puified by Prep. HPLC (sunfire 5u 100mm column, MeOH/H20 as solvents). 23 mg of 3 -Phenyl- 1 -(4- (trifluoromethyl)benzyl)-lH-indazole was obtained as a solid. MS (ESI) m/z: 353 (Μ+Η)+·
M: Preparation of Compounds 145-148
[0166] The examples 145 to 148 were prepared by procedures similar to that described for making Example 144 in a similar yield.
Example 2: Human Fascin-1 Expression and Purification
[0167] Recombinant human fascin 1 was expressed as a GST fusion protein in
BL21 Escherichia coli. One liter of 2YT medium with ampicillin was inoculated overnight with 3 mL of BL21/DE3 culture transformed with pGEX4T-fascin 1 plasmid and grown at 37°C until attenuance at 600nm (D6oo) reached about 0.8. The culture was then transferred to 18°C and induced by the addition of 0.1 mM isopropyl β-d-thiogalactoside (IPTG) for 12h. Bacteria were harvested by centrifugation at 5,000 r.p.m. for 10 min. The pellets were suspended in 30 mL of PBS supplemented with 0.2 mM PMSF, 1 mM DTT, 1 % (v/v) Triton X-100 and 1 mM EDTA. After sonication, the suspension was centrifuged at 15,000 r.p.m. for 30 min to remove the cell debris. The supernatant was then incubated for 2 h with 4 mL of glutathione beads (Sigma) at 4°C. After extensive washing with PBS, the beads were resuspended in 10 mL of thrombin cleavage buffer (20 mM Tris-HCl pH 8.0, 150 mM NaCl, 2 mM CaCl2, 1 mM DTT). Fascin was released from the beads by incubation overnight with 40-100 U of thrombin at 4°C. After centrifugation, 0.2 mM PMSF was added to the supernatant to inactivate the remnant thrombin activity. The fascin protein was further concentrated with a Centricon® (Boca Raton, FL) filter to about 50 mg/mL.
Example 3: Quantification of Fascin Expression Levels
[0168] The levels of fascin mRNA and protein can be determined by real-time PCR and Western blot, respectively. For quantitative real-time PCR, samples from cancer patients were used for RNA isolation. Oligonucleotide primers specific for fascin mRNA were used for PCR reactions. For Western blots, samples from cancer patients were assessed with anti- fascin antibody. The intensity of the bands representing fascin proteins was quantified by image documentation and quantification software.
Example 4: Compound Analysis
[0169] Representative compounds described herein were tested for fascin inhibition activity. Purified fascin protein (15 μΐ. of 0.5 μΜ) in buffer (100 mM KC1, 20 mM Tris/HCl, pH 7.5, 2 mM MgCl2) was added into each well of a clear 384-well flat-bottom plate
(Corning) using Thermo Multidrop Combi (Fisher). Compound solutions (5 mM stock, 180 nL) were pin transferred from stock 384-well plates into the 384-well assay plates and incubated for 30 min. Then 15 of 0.5 μΜ polymerized actin (in 100 mM KC1, 20 mM Tris/HCl, pH 7.5, 2 mM MgCl2, 1 mM DTT, 1 mM ATP) (Cytoskeleton Inc.) was added, resulting in 30 μΜ final concentration for chemical compounds. After another 30 min, 10 μί of Alexa Fluro 488 Phalloidin (25 times dilution from stocks in 100% methanol, Invitrogen) was added to stain F-actin and was incubated in the dark for one hour. Mixed solution (25 μί) was then transferred to one well in a black 384-well plate coated with poly-D-lysine, and stained actin bundles or F-actin would stick onto the poly-D-lysine plates. After the plates were thoroughly washed with 1 χ PBS for 3 times, the plate was imaged using an
ImageXpress Micro High Content Screening System (Molecular devices). The images were processed and analyzed using MetaMorph software. The raw image data for each well was background-corrected by subtraction of the median intensities across all wells on the plate. The background-corrected data was used to compute the bundle length for each well. The negative control wells were employed for quality control: multiple DMSO-only control wells (16 wells/plate) were present on each assay plate. [0170] In confirmative screening of the compounds, a control with another actin-bundling protein, fimbrin, can used to eliminate compounds that are not specific to fascin. Also in confirmative screening, each compound can be tested in duplicate on the same plate.
[0171] The % inhibition values of certain compounds are shown in Table 1 above. Example 5: Boy den-Chamber Cell Migration Assay
[0172] Boy den chamber assays for cell migration can be used to show the activity of the compounds described herein in inhibiting the migration of tumor cells, such as breast tumor cells, prostate tumor cells, and lung tumor cells. Certain tumor cells with fascin expression are listed below.
4T1 breast tumor cells
MDA-MB-231 breast tumor cells
DU145 prostate tumor cells
PC-3 prostate tumor cells
LLC lung tumor cells
[0173] Exemplifying procedure: MDA-MB-231 cells (5 104) or 4T1 Cells (1 105) were suspended in 100 μΐ starvation medium and added to the upper chamber of an insert (6.5 mm diameter, 8 μιη pore size; Becton Dickson). The insert was placed in a 24-well plate containing 700 starvation medium with or without 10% FBS. When used, inhibitors were added to the lower chamber. Migration assays were performed for 6 h and cells are fixed with 3.7%) formaldehyde. Cells were stained with crystal violet staining solution, and cells on the upper side of the insert were removed with a cotton swab. Three randomly selected fields ( x 10 objectives) on the lower side of the insert were photographed, and the migrated cells were counted. Migration was expressed as average number of migrated cells in a field.
[0174] The following are the IC50 data of selected compounds when tested using MDA- MB-231 human breast tumor cells.
Compound 10: 31 μΜ
Compound 25: 54 μΜ
Compound 35: 18 μΜ
Compound 43: 12 μΜ
Compound 49: 13 μΜ
Compound 65 : 64 μΜ Compound 66: 161 μΜ
[0175] In vitro data obtained in such assays are known to correlate with results obtained from in vivo models. See, e.g., Shan, D., et al., Synthetic analogues of migrastatin that inhibit mammary tumor metastasis in mice, Proc. Nat. Acad. Sci. 102: 3772-3776 (2005).
Example 6: Tumor Metastasis in Mouse Models
[0176] Tumor cell migration is essential for tumor metastasis. Representative compounds described herein were investigated their effects on tumor metastasis in an animal
model. Tumor cells (4T1 breast tumor cells) were injected into the mammary fat-pad of mice. The metastasis of these breast tumor cells from the mammary gland to the lung was monitored by the clonogenic assay.
[0177] Balb/c mice were purchased from Charles River. All animal procedures were approved by the Animal Care and Use Committees of the Weill Cornell Medical College and performed in accordance with institutional polices. For xenograft tumor metastasis studies, 5 x 105 4T1 cells were suspended in 100 \xL PBS and injected subcutaneously into the mammary glands of 6-8 week old female Balb/c mice. Tumor incidence was monitored for 21 days after injection. Tumor size was measured three times a week, and the volume was calculated using the formula length χ width2 χ 0.5. Compound treatment was initiated 7 days after tumor implantation; animals were administered daily with indicated dose for 2 weeks. On day 28, the mice were sacrificed. Numbers of metastatic 4T1 cells in lungs were determined by the clonogenic assay. In brief, lungs were removed from each mouse on day 28, finely minced and digested for 2 h at 37 °C in 5 mL of enzyme cocktail containing PBS and 1 mg/mL collagenase type IV on a rocker. After incubation, samples were filtered through 70-μιη nylon cell strainers and washed twice with PBS. Resulting cells were suspended, plated with a series of dilutions in 10-cm tissue culture dishes in RPMI-1640 medium containing 60 μΜ thioguanine, metastasized tumor cells formed foci after 14 days, at which time they were fixed with methanol and stained with 0.03% methylene blue for counting. Data were expressed as mean ± S.D. and analyzed by Student's t test with significance defined as p < 0.05.
[0178] When tested in this animal model at 100 mg/kg, Compounds 10 and 43 showed more than 90 % inhibition of tumor metastasis. The compounds described herein are contemplated to be useful for treating a condition or disorder mediated by fascin activity and/or tumor metastasis.
Example 7: In Vivo Mouse Model for Prostate Tumor Metastasis
[0179] 5- to 6-week-old male severe combined immunodeficient mice (n = 20) purchased from Charles River (Wilmington, MA) are randomly divided into two groups (n = 10 animals per group). In both two groups, human prostate tumor cells PC-3Luc cells (stably transfected with luciferase gene) (2 x 105 cells in 100 μΐ of Dulbecco phosphate-buffered saline [PBS] lacking Ca2+ and Mg2+) are introduced into animals by intracardiac injection under 1.75% isoflurane/air anesthesia. Throughout the duration of the experiment, animals in group 1 receive daily testing compounds administered intraperitoneally (i.p.) in 0.2 mL of sterile physiological saline beginning 1 week before tumor cell inoculation. In group 2 (untreated control), animals receive a daily 0.2 mL i.p. injection of the vehicle, sterile physiological saline. Mice are serially imaged weekly for 5 weeks using an IVIS system (Xenogen Corp, Alameda, CA), and the results are analyzed using Living Image software (Xenogen). For imaging, mice are injected with luciferin (40 mg/mL) i.p., and ventral images are acquired 15 minutes after injection under 1.75% isoflurane/air anesthesia. At the end of the experiments, animals are killed, and tissue is collected for histopathologic confirmation of bone metastasis. It is contemplated that less bone metastasis is found in group 1 animals treated with a fascin inhibitory compound disclosed herein as compared with that found in group 2 animals. As such the test compounds are useful for treating cancer, in particular, prostate tumor metastasis.
Example 8: In Vivo Mouse Model for Lung Tumor Metastasis
[0180] 20 mice are divided into two groups, and 2 x 106 A549 human lung tumor cells are injected into each mouse via the tail vein. One group is treated with a compound disclosed herein and another group is used as control. After 8 weeks, the lungs are harvested, fixed, and embedded in paraffin. The number of metastatic lung nodules is counted in serial histological sections stained with H&E. The areas of metastatic lung nodules are measured in scanned images of the H&E-stained tumor sections using Paint.NET software. It is contemplated that the number and area of metastatic lung nodules in the treated animals are smaller than that of the untreated control animals. As such the test compounds are useful for treating cancer, in particular, lung tumor metastasis. Example 9: Treatment of Tumor Metastasis in Human
[0181] Human patients having metastatic breast cancer are administered intravenously with a fascin inhibitory compound disclosed herein or placebo in a randomized open-label trial. The patients are separated into 5 groups. Patients in each group are administered a daily dosage of 0 mg (placebo), 100 mg, 200 mg, 500 mg, or 1000 mg of the compound, respectively, in 3 -week cycles. The time to disease progression, overall response rate (OR ), duration of response, and overall survival (OS) rate are measured at the end of each cycle with known techniques. It is contemplated that patients administered with the fascin inhibitory compound have a longer mean or average time to disease progression and/or duration of response, a higher mean or average overall response rate and/or overall survival rate, than patients administered with placebo. Fewer new tumors distant from the original tumor site are developed in patients administered with fascin inhibitory compound than in patients administered with placebo. In a preferred embodiment, one or more of the results are dose-responsive. Side effects are monitored and recorded. As such the test compounds are useful for treating tumor metastasis in human.
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Maitra, A., Iacobuzio-Donahue, C, Rahman, A., Sohn, T. A., Argani, P., Meyer, R., Yeo, C. J., Cameron, J. L., Goggins, M., Kern, S. E., Ashfaq, R., Hruban, R. H., and Wilentz, R. E. (2002) Immunohistochemical validation of a novel epithelial and a novel stromal marker of pancreatic ductal adenocarcinoma identified by global expression microarrays: sea urchin fascin homolog and heat shock protein 47, Am J Clin Pathol 118, 52-59. 33. Yoder, B. J., Tso, E., Skacel, M., Pettay, J., Tarr, S., Budd, T., Tubbs, R. R., Adams, J. C, and Hicks, D. G. (2005) The expression of fascin, an actin-bundling motility protein, correlates with hormone receptor-negative breast cancer and a more aggressive clinical course, Clin Cancer Res 11, 186-192.
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EQUIVALENTS
[0182] The embodiments, illustratively described herein may suitably be practiced in the absence of any element or elements, limitation or limitations, not specifically disclosed herein. Thus, for example, the terms 'comprising,' 'including,' 'containing,' etc. shall be read expansively and without limitation. Additionally, the terms and expressions employed herein have been used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the claimed technology. Additionally, the phrase 'consisting essentially of will be understood to include those elements specifically recited and those additional elements that do not materially affect the basic and novel characteristics of the claimed technology. The phrase 'consisting of excludes any element not specified.
[0183] The present disclosure is not to be limited in terms of the particular embodiments described in this application, which are intended as illustrations of various aspects. Many modifications and variations can be made without departing from its spirit and scope, as will be apparent to those skilled in the art. Functionally equivalent compositions, apparatuses, and methods within the scope of the disclosure, in addition to those enumerated herein, will be apparent to those skilled in the art from the foregoing descriptions. Such modifications and variations are intended to fall within the scope of the appended claims. The present disclosure is to be limited only by the terms of the appended claims, along with the full scope of equivalents to which such claims are entitled. It is to be understood that this disclosure is not limited to particular methods, reagents, compounds compositions or biological systems, which can, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting. [0184] In addition, where features or aspects of the disclosure are described in terms of Markush groups, those skilled in the art will recognize that the disclosure is also thereby described in terms of any individual member or subgroup of members of the Markush group.
[0185] As will be understood by one skilled in the art, for any and all purposes, particularly in terms of providing a written description, all ranges disclosed herein also encompass any and all possible subranges and combinations of subranges thereof. Any listed range can be easily recognized as sufficiently describing and enabling the same range being broken down into at least equal halves, thirds, quarters, fifths, tenths, etc. As a non-limiting example, each range discussed herein can be readily broken down into a lower third, middle third and upper third, etc. As will also be understood by one skilled in the art all language such as 'up to,' 'at least,' 'greater than,' 'less than,' and the like, include the number recited and refer to ranges which can be subsequently broken down into subranges as discussed above. Finally, as will be understood by one skilled in the art, a range includes each individual member.
[0186] While certain embodiments have been illustrated and described, it should be understood that changes and modifications can be made therein in accordance with ordinary skill in the art without departing from the technology in its broader aspects as defined in the following claims.

Claims

WHAT IS CLAIMED:
1. A compound of Formula I, la, lb, Ic, Id, or Ie,
Figure imgf000111_0001
Formula Ic Formula Id Formula Ie or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
L2 is selected from the group consisting of a covalent bond, -NR8-,
-C(0)NR8-, -NR8C(0)-, -C(0)CR82-, -CR8 2C(0)-, -NR8CR8 2-, and -CR8 2NR8-;
R2 is H, lower alkyl, 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7,
-OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and
-NR10SO2R7; each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl, lower haloalkyl, and -CH2OH;
R7 is lower alkyl or lower haloalkyl;
R8 is hydrogen or lower alkyl;
each R10 is independently hydrogen or lower alkyl, or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring; and
R11 is hydrogen or R3;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
2. A compound of claim 1 wherein R8 is hydrogen.
3. A compound of Formula II
Figure imgf000112_0001
Formula II,
or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
L2 is selected from the group consisting of -C(0)NH-, -NHC(O)-, -C(0)CH2-, -CH2C(0)-, -NHCH2-, and -CH2NH-;
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR10, -NR10CO2R10, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
n is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of halo, cyano, lower alkyl and lower haloalkyl;
R7 is lower alkyl or lower haloalkyl; and
each R10 is independently hydrogen or lower alkyl, or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
4. A compound of Formula Ilia, Illb, IIIc or Hid:
Figure imgf000113_0001
Formula Ilia Formula Illb Formula IIIc Formula Hid or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR', -C02H, -C02R', -CONRluR , -OCOR', -OC02R', -OCONRluR ,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
n is 0, 1, 2 or 3;
each R6 is independently selected from the group consisting of halo, cyano, lower alkyl and lower haloalkyl;
R7 is lower alkyl; and
each R10 is independently hydrogen or lower alkyl, or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
Figure imgf000114_0001
Formula IVa Formula IVb Formula IVc Formula IVd or tautomer thereof, and/or a pharmaceutically acceptable salt thereof;
wherein
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NRluCOR , -NR1UC02R , -SOR , -S02R\ -S02NR1UR , phenyl (optionally substituted with lower alkyl, halo or lower haloalkyl, or -OH), and -NR10SO2R7; each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR10, -NR10CO2R10, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
R7 is lower alkyl; and
each R10 is independently hydrogen or lower alkyl, or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring;
provided that the compound is not N-(l-(4-(trifluoromethyl)benzyl)-lH- indazol-3-yl)furan-2-carboxamide.
6. A compound selected from:
Figure imgf000115_0001
Formula VII Formula Vila Formula Vllb wherein
A1, A2, A3, A4, A5 and A6 are independently CH, CR3 or N, provided that no more than four of A1, A2, A3, A4, A5 and A6 are N;
A7 is NH or CH2; R1 is phenyl, 5-membered heteroaryl or 6-membered heteroaryl, wherein the phenyl, 5-membered heteroaryl or 6-membered heteroaryl is optionally substituted with 1 to 3 R6;
R2 is 6- to 10-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10-membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10,
-NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7;
m is 0, 1, 2 or 3;
q is 1, 2 or 3;
each R6 is independently selected from the group consisting of cyano, halo, lower alkyl and lower haloalkyl;
R7 is lower alkyl or lower haloalkyl;
R11 is hydrogen or R3; and
each R10 is independently hydrogen or lower alkyl (such as methyl or ethyl), or two R10 together with the atom(s) attached thereto form a 4- to 6-membered ring.
7. A compound selected from:
Figure imgf000116_0001
Formula Villa Formula Vlllb Formula VIIIc or tautomer thereof, and/or a pharmaceutically acceptable salt thereof; wherein
L2 is selected from the group consisting of -NR8-, -C(0)NR8-, -NR8C(0)-, -C(0)CR82-, -CR8 2C(0)-, -NR8CR82-, and -CR8 2NR8-;
R2a is hydrogen, or -NHC(0)R2, wherein R2 is lower alkyl, 6-membered aryl or 5- to 10-membered heteroaryl; wherein the 6- to 10-membered aryl or 5- to 10- membered heteroaryl is optionally substituted with 1 to 4 R4, wherein each R4 is independently selected from the group consisting of lower alkyl, lower haloalkyl, phenyl (optionally substituted with lower alkyl, halo, lower haloalkyl, or -OH), -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7; and
each R3 is independently selected from the group consisting of lower alkyl, lower haloalkyl, -OH, -OR7, -SH, -SR7, -NR10R10, halo, cyano, nitro, -COH, -COR7, -C02H, -C02R7, -CONR10R10, -OCOR7, -OC02R7, -OCONR10R10, -NR10COR7, -NR10CO2R7, -SOR7, -S02R7, -SO2NR10R10, and -NR10SO2R7.
8. A compound of any one of claims 1-3 and 6, wherein R1 is phenyl optionally substituted with 1 to 3 R6.
9. A compound of any one of claims 1-3 and 6, wherein R1 is 4-trifluoromethyl, 4- fluorophenyl, 4-chlorophenyl or 4-methylphenyl.
10. A compound of any one of claims 1-9, wherein R2 is phenyl optionally substituted with 1 to 4 R4.
11. A compound of any one of claims 1-9, wherein R2 is 5- or 6-membered heteroaryl optionally substituted with 1 to 4 R4, wherein the heteroaryl comprises two heteroatoms selected from N, O and S.
12. A compound of any one of claims 1-9, wherein R2 is phenyl optionally substituted with 1 to 4 R4.
13. A compound of any one of claims 1-9, wherein R2 is R5 optionally substituted with 1 to 4 R4, wherein R5 is selected from the group consisting of furan, benzofuran, pyridine, pyridazine, pyrimidine, pyrazine, thiophene, thiazole, isothiazole, oxazole, isoxazole, oxadiazole, imidazole, pyrrole, and pyrazole.
14. A compound of any one of claims 1-9, wherein R2 is phenyl, chlorophenyl, methyl furan.
15. A compound of any one of claims 1-9, wherein R2 is selected from the group consisting of thiophene, thiazole, isoxazole, oxazole, 1,2,5-oxadiazole, pyrazole, pyrimidine and pyridazine, which are optionally substituted with methyl.
16. A compound of any one of claims 1-9, wherein R2 is pyridazine, isoxazole or oxazole.
17. A compound of any one of claims 1-9, wherein R2 is selected from the group consisting of
Figure imgf000118_0001
18. A compound of any one of claims 1-9, wherein or
19. A compound of any one of claims 1-13, wherein R4 is selected from the group consisting of lower alkyl, halo, lower haloalkyl, -OH, -OR7, cyano and phenyl optionally substituted methyl, and wherein R7 is lower alkyl or lower haloalkyl.
20. A compound of any one of claims 1-19, wherein m is 0.
21. A compound selected from Table 1 or tautomer thereof, and/or a pharmaceutically acceptable salt thereof.
22. A compound selected from Table 2 or tautomer thereof, and/or a pharmaceutically acceptable salt thereof.
23. A pharmaceutical composition comprising a compound of any one of claims 1-22.
24. A method of treating a condition or disorder mediated by fascin activity in a subject in need thereof, which method comprises administering to the subject a therapeutically effective amount of at least one compound of any one of claims 1-22.
25. The method of claim 24 wherein the condition or disorder is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage.
26. The method of claim 25, wherein the condition or disorder is a metastatic cancer.
27. The method of claim 26, wherein the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer.
28. A method of inhibiting fascin expression and/or activity, comprising administering an effective amount of a fascin inhibitor to a cell to thereby inhibit fascin expression or activity in the cell, wherein the fascin inhibitor is a compound of any one of claims 1- 22.
29. The method of claim 28, wherein the cell is in an animal or the cell has been removed from an animal.
30. The method of claim 29, wherein the animal is a human.
31. The method of claim 30, wherein the human suffers from a disease or condition.
32. The method of claim 31 , wherein the disease or condition is a metastatic cancer, a neuronal disorder, neuronal degeneration, an inflammatory condition, a viral infection, a bacterial infection, lymphoid hyperplasia, Hodgkin's disease or ischemia-related tissue damage.
33. The method of claim 31 , wherein the disease or condition is a metastatic cancer.
34. The method of claim 33, wherein the cancer is a carcinoma, lymphoma, sarcoma, melanoma, astrocytoma, mesothelioma cells, ovarian carcinoma, colon carcinoma, pancreatic carcinoma, esophageal carcinoma, stomach carcinoma, lung carcinoma, urinary carcinoma, bladder carcinoma, breast cancer, gastric cancer, leukemia, lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer or prostate cancer.
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