WO2007068474A1 - (2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors - Google Patents
(2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors Download PDFInfo
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- WO2007068474A1 WO2007068474A1 PCT/EP2006/012019 EP2006012019W WO2007068474A1 WO 2007068474 A1 WO2007068474 A1 WO 2007068474A1 EP 2006012019 W EP2006012019 W EP 2006012019W WO 2007068474 A1 WO2007068474 A1 WO 2007068474A1
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- 0 CC(C)(*)C(C)(*)C(C)(C)*C(C)(C)C(C)(*)C(C)(C)C(*)(C(N1C(*)C(NO)=O)=*)N(*)C1=* Chemical compound CC(C)(*)C(C)(*)C(C)(C)*C(C)(C)C(C)(*)C(C)(C)C(*)(C(N1C(*)C(NO)=O)=*)N(*)C1=* 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/72—Two oxygen atoms, e.g. hydantoin
- C07D233/76—Two oxygen atoms, e.g. hydantoin with substituted hydrocarbon radicals attached to the third ring carbon atom
- C07D233/78—Radicals substituted by oxygen atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P11/00—Drugs for disorders of the respiratory system
- A61P11/06—Antiasthmatics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/72—Two oxygen atoms, e.g. hydantoin
- C07D233/76—Two oxygen atoms, e.g. hydantoin with substituted hydrocarbon radicals attached to the third ring carbon atom
Definitions
- This invention relates to novel compounds which are selective inhibitors of matrix met ⁇ lloproteinases, especially metalloproteinase 12 (MMP-12), processes for their preparation, pharmaceutical compositions containing them and their use in therapy.
- MMP-12 matrix met ⁇ lloproteinases
- Metalloproteinases represent a super family of proteinases (enzymes), whose numbers have increased dramatically in recent years. Based on structural and functional considerations, these enzymes have been classified into families and subfamilies N. M. Hooper, FEBS letters 354, 1-6 (1994).
- metalloproteinases examples include the matrix metalloproteinases (MMPs), which is a family of zinc containing endopeptidases, such as the collagens (MMP-1 , MMP-8, MMP-13, MMP-18), the gelatinases (MMP-2, MMP-9), the stromelvsins (MMP-3, MMP-10 1 MMP-11), matrilvsin (MMP-7, MMP-26), metalloelastase (MMP-12) enamelvsin (iyiMP-20), the MT-MMPs (MMP-14, MMP-15, MMP-16, MMP-17, MMP-24, MMP- 25).
- MMPs matrix metalloproteinases
- the MMPs is a family of zinc containing endopeptidases which are capable of cleaving large biomolecules like the collagens, proteoglycans and fibronectins, a process necessary for the growth and remodelling of tissues such as embryonic development and bone formation under normal physiological conditions. Expression is upregulated by pro-inflammatory cytokines and/or growth factors.
- the MMP's are secreted as inactive zymogens which, upon activation, are subject to control by endogenous inhibitors, for example, tissue inhibitor of metalloproteinases (TIMP) and d-macroglobulin. Chapman, KT. et al., J. Med. Chem. 36, 4293-4301 (1993); Beckett, R.P.
- MMPs Over-expression and activation of MMPs have been linked with a wide range of diseases such as cancer, tumour metastasis, rheumatoid arthritis, osteoarthritis, chronic inflammatory disorders such as emphysema, cardiovascular disorders such as atherosclerosis, corneal ulceration, dental diseases such as gingivitis and periodontal disease, and neurological disorders such as multiple sclerosis. Chirivi, R. G. S. et al., Int. J. Cancer, 58, 460-464 (1994); Zucker, S., Cancer Research, 53, 140-144 (1993). In addition, a recent study indicates that MMP-12 is required for the development of smoking-induced emphysema in mice. Science, 277, 2002 (1997).
- MMP-12 also known as macrophage elastase or metalloelastase
- the proMMP-12 consists of a pro-domain, a catalytic domain containing the zinc binding site and a C-terminal hemopexin-like domain.
- Recombinant human MMP-12 can be activated by autocatalysis as described below and reviewed by Shapiro et al " Macrophage Elastase" in Handbook of Proteolytic Enzymes 2004 (Eds A J Barrett et al) pp 540-544 Academic Press, San Diego.
- MMP-12 is preferentially expressed in activated macrophages and its expression in monocytes can be induced by cytokines such as GM-CSF and CD-40 signalling.
- cytokines such as GM-CSF and CD-40 signalling.
- MMP-12 can degrade a broad spectrum of substrates, including type IV collagen, fibronectin, laminin, vitronectin, proteoglycans, chondroitin sulphate, myelin basic protein, alpha-one chymotrypsin and plasminogen. It can also activate MMP-2 and MMP-3.
- MMP-12 is required for macrophage mediated proteolysis and ma rix invasion in mice. MMP-12 is proposed to have a direct role in the pathogenesis of aortic aneurisms and in the development of pulmonary emphysema that results from chronic inhalation of cigarette smoke, wood smoke and urban smogs.
- MMP-12 has been shown to be secreted from alveolar macrophages from smokers Shapiro et al., J. Biological Chemistry, 268, 23824, (1993) as well as in foam cells in atherosclerotic lesions Matsumoto et al., Am. J. Pathol, 153, 109, (1998).
- a mouse model of COPD is based on challenge of mice with cigarette smoke for six months, two cigarettes a day six days a week. Wildtype mice developed pulmonary emphysema after this treatment. When MMP-12 knock-out mice were tested in this model they developed no significant emphysema, strongly indicating that MMP-12 is a key enzyme in the COPD pathogenesis.
- MMPs such as MMP-12 in COPD (emphysema and bronchitis)
- COPD emphysema and bronchitis
- MMPs play an essential role in cell regrowth and turnover in healthy tissue.
- Broad spectrum inhibition of the MMPs in the clinical setting results in musculoskeletal stiffness and pain.
- This side effect and others associated with broad spectrum inhibition may be enhanced in chronic administration.
- MMP-12 inhibition is considered to contribute to the improvement and prevention of the above discussed diseases caused by or related to the activity of MMP-12. Therefore, the development of MMP-12 inhibitors has been desired.
- an effective MMP inhibitor requires a zinc binding group, i.e. a functional group capable of chelating the active site zinc(ll) ion, at least one functional group which provides a hydrogen bond interaction with the enzyme backbone, and one or more side chain which undergo effective van der Waals interactions with the enzyme subsites.
- Zinc binding groups in known MMP inhibitors include carboxylic acid groups, hydroxamic acid groups, su fhydryl groups or mercapto groups.
- hydroxamic acid inhibitors demonstrate a considerable degree of specificity within the MMP family: a potent inhibitor of one member of the MMP family, may have only minimal potency against another MMP family member. This exhibited specificity typically relies on the identity of the other parts of the inhibitors, e.g. the P1 , P2, P3 and P4 units.
- PDF peptide deformylase
- N-fprmyl methionine which characterises the nascent bacterial polypeptide chain.
- SAR structure activity relationship
- An endopeptidase cleaves within a peptide chain, and therefore the protease typically recognises a number of amino acid residues around the intended cleavage site.
- PDF is intended to cleave a terminal group on the first amino acid of bacterial proteins of very different sequence. Accordingly the selectivity of PDF is predicated on recognition of the N-formyl. methionine terminal residue rather than the identity of the adjacent amino acids.
- US 3003/0134827 discloses compounds having a hydroxyacetamide moiety linked to a broad range of cyclic amides as inhibitors of MMPs in particular MMP-3, aggrecanase and TNF- ⁇ -converting enzyme (TACE).
- TACE TNF- ⁇ -converting enzyme
- US 6,462,063 discloses substituted hydantoin hydroxamates capable of inhibiting C- proteinase.
- the compounds of US 6,462,063 have a hydroxamic acid linked to a carbon atom of the hydantoin ring via a chain comprising, apart from the acid function, at least three atoms.
- W002/074750 discloses a new class of compounds that act as MMP inhibitors wherein the zinc binding group of the inhibitor is constituted of a five membered ring structure such as a hydantoin group.
- the zinc binding ring structure is attached to one or more functional groups or side chains which are disposed at an appropriate angle and distance to recognise the characteristic sequence around the appropriate MMP12 cleavage site.
- the mode of binding to the enzyme of this class of zinc- binding inhibitors will thus differ substantially from that of compounds having other zinc binding groups, such as hydroxamic acid adjacent a hydantoin core, in that coordination of the hydroxamate zinc binding group will displace the hydantoin away from the structural zinc.
- US 2005/0171096 discloses hydantoin derivatives alleged to be inhibitors ofj matrix metalloproteinases and TACE although no guidance as to the specificity of the inhibitors is given.
- the compounds of US 2005/0171096 do not bear a hydroxamic acid or conventional zinc-binding group. This suggests that that the hydantoin is the zinc binding group and hence the SAR exhibited by the P1 , P2 and P3 units of these compounds is different from that of an inhibitor based on a hydantoin substituted with a hydroxamic acid carrying side chain.
- hydroxamic hydantoins that are inhibitors of metalloproteinases and are of particular interest in selectively inhibiting MMPs such as MMP-12 and have desirable activity profiles.
- the compounds of this invention have beneficial potency, selectivity and/or pharmacokinetic properties.
- R 1 is Ci-C 6 alkyl, C 0 -C 3 alkandiylcarbocyclyl, C 0 -C 3 alkandiylheterocyclyl,
- R 2 is carbocyclyl or heterocyclyl
- R 3 is H or Ci-C 4 alkyl
- R 4 is H or Ci-C 4 alkyl; each R 5 and R 5 is independently H, Ci-C 4 alkyl or halo; or
- R 4 and an adjacent R 5 together define a double bond; each R 6 and R 6 is independently H, CrC 4 alkyl or halo; or
- R 5 and an adjacent R 6 together define a double bond
- R 5 , R 5 and an adjacent R 6 and R 6 together define a triple bond; n is 1-3, m is 0-3;
- D is absent, or D is an ether, thioether, amine, amide, carbamate, urea or sulphonamide linkage; whereby the group (CR 5 R 5 ) n -D-(CR 6 R 6 ) m has at least 2 chain atoms;
- CsAlkdiylheterocyclyl; or Ra and Rb together with an adjacent N atom define pyrrolidine, piperidine, morpholine, piperazine or N-methyl piperazine;
- Rc is H or d-C 4 alkyl; or Rc and Ra together with an adjacent N atom define pyrrolidine, piperidine, i morpholine, piperazine or N-methyl piperazine
- R 1 thus include 1-methylpropyl, 1 ,1-dimethylpropyl, 1-ethyl- 1-methylpropyl, 1 ,1dimethylbutyl, 1 ,1-diethylpropyl, 1-ethylpropyl, 1-methylbutyl, 1 ,2- dimethylpropyl.
- preferred values of R 1 include i-propyl, sec.butyl and tert.butyl.
- a moiety such as an optionally substituted carbocyclyl or an optionally substituted heierocyclyl distanced 1-5 atoms from the backbone of the inhibitor at the position of R 1 can be used to alter the lipophilicity of the compounds of the invention. It is be ieved that an appropriate choice of this moiety will confer any lipophilic/hydrophilic characteristics to the inhibitors required to improve certain properties, i.a. their DMPK properties.
- R 1* Ci-C 5 alkyl substituted with carbocyclyl or d- C 5 alkyl substituted with heterocyclyl wherein said carbocyclyl and heterocyclyl are optionally substituted 1-4 times with substituents selected from CrC 3 alkyl, oxo and halo.
- Preferred structures for R 1 thus include:
- n 0, 2, 3 or 4.
- the Co-C 3 alkandiylcarbocyclyl as R 1 has methylene as the C 0 -C 3 alkandiyl component and a C 5 or Ce monocyclic ring as the carbocyclyl component.
- Representative values of R 1 in this embodiment thus include (optionally substituted): benzyl, cyclohexylmethyl-, 1-methylcyclohexylmethyl-, cyclopentylmethyl-, 1-methylcyclopentylmethyl, where the optional substituents are as outlined above.
- the Co-C 3 alkandiylcarbocyclyl as R 1 has a bond as the Co-C 3 alkandiyl component and a C 5 or Ce monocyclic ring as the carbocyclyl component.
- Representative values of R 1 in this embodiment thus include (optionally substituted): phenyl, or preferably cyclohexyl or cyclopentyl, where the optional substituents are as outlined above.
- the Co-C 3 alkandiylheterocyclyl as R has methylene as the C 0 -C 3 alkandiyl component and a 5 or 6 membered aromatic, partially saturated, or unsaturated monocyclic ring as the heterocyclyl component.
- Representative values of R 1 in this embodiment thus include (optionally substituted): pyrrolylmethyl-, pyrrolinylmethyl-, pyrrolidinylmethyl-, thiazolylmethyl, pyridylmethyl-, pyrimidinylmethyl-, piperidylmethyl-, piperazinylmethyl- or morpholinylmethyl, where the optional substituents are as outlined above.
- the C 0 -C 3 alkandiylheterocyclyl as R 1 has a bond as the Co-C 3 alkandiyl component and a 5 or 6 membered aromatic, partially saturated, or unsaturated monocyclic ring as the heterocyclyl component.
- Representative values of R 1 in this embodiment thus include (optionally substituted):
- D will typically be absent, m will be 1 or 2 and each R 6 /R 6 is H.
- the stereochemistry at the chiral center to which R 1 is attached and at the chiral center to which the -(CR 5 R 5' ) n -D-(CR 6 R 6' ) m -R 2 group is atta'ched have the R and S stereochemistries respectively.
- D include O, i.e. an ether linkage or D is absent (i.e. the (CR 5 R 5l )n-D-(CR 6 R 6 ') m function is a CrC 6 alkandiyl chain.
- the -(CR 5 R 5 ) n -D-(CR 6 R 6' ) m - group has in total 2 or 3 chain atoms, especially:
- n and m are each 1 and D is absent, i.e. the
- (CR 6 R 6 ) m - group is -CH 2 CH 2 -.
- each R 5 , R 5 and each R 6 R 6 are H, but the invention extends to branched or substituted structures, such as those wherein R 5 and/or R 5 on any one carbon atom is, for example methyl, i-propyl, t-butyl or f uoro. To avoid asymmetric centers it can be advantageous that both R 5 and R 5 and/or R 6 and R 6 on any one carbon atom are the same, typically, H, F or Me.
- D is absent and adjacent R 5 and R 6 together define a cis or trans double bond:
- D is absent and adjacent R 5 , R 5 ' R 6 and R 6 ' together define a triple bond:
- R 2 as carbocyclyl is an optionally substituted aromatic ring structure, such as naphthyl or indanyl and especially phenyl.
- R as heterocyclyl is an optionally substituted, aromatic ring structure, such as a monocyclic ring selected from pyrrole, furan, thiophene, pyrazole, pyrazoline, imidazole, oxazole, isooxazole, thiazole, isothiazole, triazole, oxadiazole, furazan, thiadiazole, tetrazole, pyridine, pyridazine, pyfimidine, pyrazine, thiazine, triazine; or a bicyclic ring selected from thienobifuran, indole, isoindole, benzofuran, isobenzofuran, indoline, isoindoline, benzothiophene, isobenzothiophene, indazole, benzimidazole, benzthiazole, purine, quinoline, isoquinoline, chromane
- R 2 is an optionally substituted, aromatic monocyclic ring, especially optionally substituted: pyrrolyl, thiazolyl, pyridyl or pyrimidinyl, and particularly optionally substituted phenyl.
- an optional substituent to R 2 is located at the para, ortho or meta position relative to the -(CR 5 R 5 VD-(CR 6 R 6 ) m - linkage.
- a preferred structure for R 2 is phenyl substituted with fluoro in the ortho position which phenyl is optionally further substituted in the meta or preferably para position.
- Ci-C 4 alkoxy groups such as methoxy, ethoxy, n- propoxy, isopropoxy directly bonded (i.e. C 0 ) or through an intermediate methylene, ethanediyl, 1 ,3-propanediyl or 1 ,2-propanediyl chain.
- 'Amino' is meant to include NH 2 , and mono- and dialkylamino such as NHCi-C 6 alkyl and N(CrC 6 alkyl) 2 groups especially NHCrC 3 alkyl and N(Ci-C 3 alkyl) 2 , or the two alky groups of dialkylamino together form a saturated cyclic amine such as pyrrolidinyl, piperidinyl, piperazinyl, N-methylpiperazinyl and morpholinyl.
- mono- and dialkylamino such as NHCi-C 6 alkyl and N(CrC 6 alkyl) 2 groups especially NHCrC 3 alkyl and N(Ci-C 3 alkyl) 2 , or the two alky groups of dialkylamino together form a saturated cyclic amine such as pyrrolidinyl, piperidinyl, piperazinyl, N-methylpiperazinyl and morpholinyl.
- a saturated cyclic amine such as pyrrolidinyl, piperidinyl, piperazinyl and morpholniyl.
- 'Hallo' or halogen as applied herein is meant to include F, Cl, Br, I, particularly chloro and preferably fluoro.
- Hal ⁇ alkyl as applied herein means an alkyl in which 1-3 hydrogen atoms per carbon have been replaced with halo, preferably fluoro.
- Representative examples include difluoromethyl and 2,2-diflouroethyl, 2,2,2-trifluoroethyl and 2-fluoroethyl.
- Preferred examples include trifluoromethyl and fluoromethyl.
- Co-C 3 alkanediylaryl' as applied herein is meant to include a phenyl, naphthyl or phenyl fused to C 3 -C 7 cycloalkyl such as indanyl, which aryl is directly bonded (i.e. C 0 ) or through an intermediate methylene, ethanediyl, 1 ,3-propanediyl or 1 ,2-propanediyl group as defined for Co-C 3 alkaneyl above.
- the aryl and/or its fused cycloalkyl moiety is optionally substituted with 1-3 substituents selected from halo, hydroxy, nitro, cyano, carboxy, CrC 6 alkyl, CrC 4 alkoxy, Co-CsalkanediylCr C 4 alkoxy, CrC 4 alkanoyl, amino, amido, carbamoyl, azido, oxo, mercapto, C 0 - C 3 aikanediylcarbocyclyl, C 0 -C 3 alkanediylheterocyclyl, it being understood that when I
- Optionally substituted Co-C 3 alkanediylcarbocyclyl' and Optionally substituted Co-C 3 alkanediylheterocyclyl' refers preferably to substitution of the carbocyclic or heterocyclic ring.
- heterocyclyl and carbocyclyl groups are thus a monocyclic ring with 5 or especially 6 ring atoms, or a bicyclic ring structure comprising a 6 membered ring fused to a 4, 5 or 6 membered ring.
- Typical such groups include C 3 -C 8 cycloalkyl, phenyl, benzyl, tetrahydronaphthyl, indenyl, indanyl, heterocyclyl such as from azepanyl, azocanyl, pyrrolidinyl, piperidinyl, morpholinyl, thiomorpholinyl, piperazinyl, indolinyl, pyranyl, tetrahydropyranyl, tetrahydrothiopyranyl, thiopyranyl, furanyl, tetrahydrofuranyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, imidazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, tetrazolyl, pyrazolyl, indolyl, benzofuranyl, be
- the saturated heterocycle thus includes radicals such as pyrrolinyl, pyrrolidinyl, pyrazolinyl, pyrazolidinyl, piperidinyl, morpholinyl, thiomorpholinyl, pyranyl, thiopyranyl, piperazinyl, indolinyl, azetidinyl, tetrahydropyranyl, tetrahydrothiopyranyl, tetrahydrofuranyl, hexahydropyrimidinyl, hexahydropyridazinyl, 1 ,4,5,6- tetrahydropyrimidinylamine, dihydro-oxazolyl, 1 ,2-thiazinanyl-1 ,1 -dioxide, 1 ,2,6- thiadiazinanyl-1 ,1 -dioxide, isothiazolidinyl-1 ,1 -dioxide and imidazolidinyl-2,4
- heterocycle may be condensed with a phenyl or carbocyclyl ring to form a bicyclic ring system.
- radical positions on any molecular moiety used in the defi iitions may be anywhere on such a moiety as long as it is chemically stable.
- Radicals used in the definitions of the variables include all possible isomers unless otherwise indicated.
- pyridyl includes 2-pyridyl, 3-pyridyl and 4-pyridyl
- pen :yl includes 1-pentyl, 2-pentyl and 3-pentyl.
- each definition is independent.
- the invention relates to the compounds of formula (I) perse, the prodrugs, ⁇ /-oxides, addition salts, quaternary amines, metal complexes, and stereochemical ⁇ isomeric forms thereof.
- the invention further relates to methods for the preparation of the compounds of formula (I), the prodrugs, ⁇ /-oxides, addition salts, quaternary amines, metal complexes, and stereochemical ⁇ isomeric forms thereof, its intermediates, and the use of the intermediates in the preparation of the compounds of formula (I).
- the compounds according to the invention may contain one or more asymmetrically substituted carbon atoms.
- the presence of one or more of these asymmetric centres (chiral centres) in compounds according to the invention can give rise to stereoisomers, and in each case the invention is to be understood to extend to all such stereoisomers, including enantiomers and diastereomers, and mixtures including racemic mixtures thereof. Racemates may be separated into individual optically active forms using known procedures (cf. Advanced Organic Chemistry: 3rd Edition: author J March, pp 104-107) including for example the formation of diastereomeric derivatives having convenient optically active auxiliary species followed by separation and then cleavage of the auxiliary species.
- optically active centres exist in the compounds of the invention, we disclose all individual optically active forms and combinations of these as individual specific embodiments of the invention, as well as their corresponding racemates.
- the compounds of the invention may be provided as pharmaceutically acceptable salts, solvates, prodrugs, ⁇ /-oxides, quaternary amines, metal complexes, or stereochemical ⁇ isomeric forms.
- pharmaceutically acceptable salts such as hydrochloride, hydrobromide, citrate, tosylate and maleate salts and salts formed with phosphoric and sulphuric acid.
- suitable salts are base salts such as an alkali metal salt for example sodium or potassium, an alkaline earth metal salt for example calcium or magnesium, or organic amine salt for example triethylamine.
- solvates include hydrates.
- the compounds of formula (I) have activity as pharmaceuticals.
- the compounds of the invention are metalloproteinase inhibitors, in particular they are inhibitors of MMP-12 and may be used in the treatment of diseases or conditions mediated by MMP-12 such as asthma, rhinitis, chronic obstructive pulmonary diseases (COPD) 1 arthritis (such as rheumatoid arthritis and osteoarthritis), atherosclerosis and restenosis, cancer, invasion and metastasis, diseases involving tissue destruction, loosening of hip joint replacements, periodontal dise'ase, fibrotic disease, infarction and heart disease, liver and renal fibrosis, endometriosis, diseases related to the weakening of the extracellular matrix, heart failure, aortic aneurysms, CNS related diseases such as Alzheimer's disease and Multiple Sclerosis (MS), psoriasis and hematological disorders.
- MMP-12 chronic obstructive pulmonary diseases
- COPD chronic obstructive
- the compounds of the invention typically show a favourable selectivity profile. Whilst we do not wish to be bound by theoretical considerations, the compounds of the invention are believed to show selective inhibition for any one of the above indications relative to any MMP-1 inhibitory activity, by way of non-limiting example they may show in excess of 100 fold selectivity over any MMP-1 inhibitory activity.
- the present invention provides a compound of formula (I), or a pharmaceutically acceptable salt, a solvate, prodrug, ⁇ /-oxide, quaternary amine, metal complex, or stereochemically isomeric form thereof, as hereinbefore defined for use in therapy.
- the invention provides the use of a compound of formula (I), or a pharmaceutically acceptable salt, a solvate, prodrug, ⁇ /-oxide, quaternary amine, metal complex, or stereochemically isomeric form thereof, as here inbefore defined in the manufacture of a medicament for use in therapy.
- the term “therapy” also includes “prophylaxis” unless there are specific indications to the contrary.
- the terms “therapeutic” and as “therapeutically” should be construed accordingly.
- the invention further provides a method of treating a disease or condition mediated by MMP-12 which comprises administering to a patient a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt, a solvate, prodrug, ⁇ /-oxide, quaternary amine, metal complex, or stereochemical ⁇ isomeric form thereof, as hereinbefore defined.
- the invention also provides a method of treating an obstructive airways disease (e.g. asthma or COPD) which comprises administering to a patient a therapeutically effective amount of a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof as hereinbefore defined.
- an obstructive airways disease e.g. asthma or COPD
- the dosage administered will, of course, vary with the compound employed, the mode of administration, the treatment desired and the disorder indicated.
- the daily dosage of the compound of formula l/sa t/solvate (active ingredient) may be in the range from 0.001 mg/kg to 75 mg/kg, in particular from 0.5 mg/kg to 30 mg/kg. This daily dose may be given in divided doses as necessary.
- unit dosage forms will contain about 1 mg to 500 mg of a compound of this invention.
- the compounds of formula (I) and pharmaceutically acceptable salts, solvates, prodrugs, ⁇ /-oxides, quaternary amines, metal complexes, or stereochemical ⁇ isomeric forms thereof may be used on their own but will generally be administered in the form of a pharmaceutical composition in which the formula (I) compound/salt/solvate (active ingredient) is in association with a pharmaceutically acceptable adjuvant, diluent or carrier.
- the pharmaceutical composition will preferably comprise from 0.05 to 99 %w (per cent by weight), more preferably from 0.10 to 70 %w, of active ingredient, and, from 1 to 99.95 %w, more preferably from 30 to 99.90 %w, of a pharmaceutically acceptable adjuvant, diluent or carrier, all percentages by weight being based on total composition.
- a representative tablet within the scope of the pharmaceutical composition of the invention could have a mass of 500 - 1500 mg with a loading of active ingredient in the range 35 - 75%, with the balance being excipients, such as binders, disintegrants, antioxidants and the like.
- the present invention also provides a pharmaceutical composition
- a pharmaceutical composition comprising a compound of formula (I) or a pharmaceutically acceptable salt or solvate thereof as hereinbefore defined in association with a pharmaceutically acceptable adjuvant, diluent or carrier.
- the invention further provides a process for the preparation of a pharmaceutical composition of the invention which comprises mixing a compound of formula (I) or a pharmaceutically acceptable salt or, a solvate, prodrug, ⁇ /-oxide, quaternary amine, metal complex, or stereochemical ⁇ isomeric form, thereof as hereinbefore defined with a pharmaceutically acceptable adjuvant, diluent or carrier.
- compositions of this invention may be administered in standard manner for the disease or condition that it is desired to treat, for example by oral, topical, parenteral, buccal, nasal, vaginal or rectal administration or by inhalation.
- the compounds of this invention may be formulated by means known in the art into the form of, for example, tablets, capsules, aqueous or oily solutions, suspensions, emulsions, creams, ointments, gels, nasal sprays, suppositories, finely divided powders or is aerosols for inhalation, and for parenteral use (including intravenous, intramuscular or infusion) sterile aqueous or oily solutions or suspensions or sterile emulsions.
- the inhaled (including aerosol & nebulised) route is convenient, especially for compounds of formula I with a rapid metabolism.
- a large number of appropriate devices able to dose and entrain the pharmaceutical active and deliver it to the lungs of the patient are now available, even for COPD patients with a reduced respiratory capacity. See for example Byron's review in Proc. Am. Thorac. Soc. 2004: 1(4) 321- 328 or Caprioti's review in Medsurg. Nurs.2005: 14(3) 185-194.
- the oral delivery route, particularly capsules or tablets is favoured, especially for advanced COPD patients with severely compromised respiratory capacity.
- composition of this invention may also contain, or be co- administered (simultaneously or sequentially) with, one or more pharmacological agents of value in treating one or more diseases or conditions referred to hereinabove.
- a representative example is inhaled steroids such as are conventionally used in asthma, for example budesonide and "Symbicort" (trade mark).
- Ether derivatives (2d) can alternatively be achieved by alkylation of the hydroxy group of the alcohol (2a) by a displacement reaction with a suitable alkylating agent R 2 -Lg, where Lg is a leaving group such as a trichloroimidate, a halide like a chloride, bromide or iodide, or a derivative of sulphonic acid such as a mesylate, triflate, tosylate or the like, in the presence of a base such as sodium hydride, Ag 2 O, t.BuOK or the like in a solvent like DMF or THF or the like.
- a base such as sodium hydride, Ag 2 O, t.BuOK or the like in a solvent like DMF or THF or the like.
- compounds carrying a carbamate containing side chain can be prepared by reacting the hydroxy group of the amino acid (2a) with a formylating agent such phosgene or a suitable chlorocarbamate in the presence of a base like sodium hydrogen carbonate in a solvent like dichloromethane or toluene, followed by reaction with a desired amine R 2 -(CH 2 ) m NH 2 .
- Derivatives substituted with the groups R 4 , R 5 , R 5' , R 6 and/or R 6' can be prepared according to the above described method by using the appropriately substituted amino acids and alkylating agents.
- Amino acids carrying an amide, carbamate, urea or sulponamide containing side chain, i.e. D is an amide, carbamate urea or sulpnonamide linkage respectively in compound (1b), can be prepared from ⁇ -aminoalkyl amino acids as illustrated in scheme 3.
- ⁇ -Aminoalkyl amino acids are commercially available or they can be prepared from the corresponding ⁇ -hydroxyalkyl amino acids according to literature procedures.
- the acid (3Aa) which is available commercially or in the literature, can be reduced to the corresponding alcohol (3Ab) by any suitable method known in the field of synthetic organic chemistry, for example the acid can be transformed to a suitable ester or acid halide like the N-hydroxysuccinimide followed by treatment with a reducing agent such as LiBH 4 .
- a reducing agent such as LiBH 4 .
- the afforded alcohol (3Ab) can then be further reacted with iodine in the presence of triphenylphosphine and imidazole to provide the iodo derivative (3Ac).
- 3Bb 3Bc q is O, 1, 2, 3, 4 or 5
- Dehydration effected for instance by acidic treatment provides the unsaturated compound (3Bb) which subsequently can be treated as described in scheme 1 to give the desired hydantoin derivative (3Bc).
- the same strategy can also be applied in order to obtain compounds with other side chains such as alternative position of the olefinic bond or heteroatom containing side chains by choosing the appropriate hydroxyalkyl substituted amino acid and Grignard reagent.
- elongation of the hydroxyalkyl side chain in order to obtain a thioether, amine, ether or carbamate containing side chain can be performed as illustrated in scheme 5. or in the literature.
- An alternative method to obtain amine derivatives, i.e. D' is NH is to oxidize the hydroxy group of the alcohol (4d) to the corresponding aldehyde, effected for example by treatment with Dess-Martin periodinane or by any other suitable oxidation reagent, followed by a reductive amination with the desired amino derivative R 2 (CH 2 ) m NH 2 .
- D' is O
- a suitable alkylating agent R 2 -Lg where Lg is a leaving group such as a trichloroimidate or a halide like a chloride, bromide or iodide, or a derivative of sulphonic acid such as a mesylate, triflate, tosylate or the like, in the presence of a base such as sodium hydride, Ag 2 O t.BuOK or the like in a solvent like DMF or THF or the like.
- compounds carrying a carbamate containing side chain can be prepared by reacting the hydroxy group of the hydantoin (4d) with a formylating agent such phosgene in the presence of a base like sodium hydrogen carbonate in a solvent like dichloromethane or toluene, followed by reaction with a desired amine R 2 (CH 2 )mNH 2 .
- Hydantoins carrying an amide, carbamate, urea or sulphonamide containing side chain, i.e. D is an amide, carbamate, urea or sulphonamide linkage respectively in I amino linkage in general formula I 1 may also be prepared from the primary amine
- the 1 amino thioacid (7a) can be achieved from the corresponding amino acid (2b, 2c, 2d or 2e) by activation of the amino acid with isobutylchloroformate and N- methylmorpholine in a solvent like THF followed by treatment with hbS and subsequent acidifying with for instance HCI.
- Coupling of the afforded amino thioacid with a natural or unnatural amino acid (7b) under standard peptide coupling conditions such as using a coupling reagent like BOP-CI or PyBOP or the like in the presence of a base such as DIEA or the like in a solvent like THF provides the thiodipeptide (7c).
- the thiodipeptide (7c) can be achieved from the amino acid (2b, 2c, 2d or 2e) by converting the acid function to a nitrile by using for instance a reagent like trimethylsilanecarbonitrile in the presence of a Lewsis acid such as BF 3 -OEt 2 followed by treatment as described by C. H. Williams et al. in J. Chem. Soc. Perkin Trans. I, 1988, p. 1051-1055 and finally coupling of the second amino acid (7b) as described above.
- a Lewsis acid such as BF 3 -OEt 2
- a further alternative to the thiodipeptide (7c) is by conversion of the dipeptide (1c) by using the thionation reagent 2,4-bis(4-methoxyphenyl)-1 ,2,3,4-dithiadiphosphetane 2,4i-disulfide described by K. Clausen et al. in Tetrahedron, Vol. 37, 1981 , p. 3635- 3639.
- Amino thioacids substituted with the groups R 4 , R 5 , R 5 , R 6 and/or R 6 can be prepared according to the above described methods by starting from the appropriately substituted compounds corresponding to amino acids (2b-2e) carrying the desired substituents.
- step e To a solution of the compound obtained in step e above (109 mg, 0.36 mmol) in DMF (1.8 mL) was added BOP (190 mg, 0.43 mmol) at 0 °C. After stirring for 30 min, HOrJH 2 XHCI (50mg, 11.38 mmol) and ⁇ /-methylmorpholine (0.16 mL, 1.44 mmol) were added. The mixture was warmed to room temperature and stirred overnight.
- step a (24a) above The compound obtained in step a (24a) above (764 mg, 1.626 mmol) was stirred in TFA (10 mL) at 0 0 C for 5 h, then concentrated under vacuum. The residue was diluted with CH 2 CI 2 , washed with saturated NaHCO 3 and brine, dried over anhydrous Na 2 SO 4 and concentrated which gave the crude product.
- the obtained crude product was stirred in dioxane (9 mL) and water (1 mL) at 0 0 C, DIEA (629 mg, 4.878 mmol) and phenyl chloroformate (382 mg, 2.43 mmol) were added, and the mixture was stirred for 2 h.
- a typical MMP-12 enzyme assay employs recombinant human MMP-12 catalytic domain expressed and purified as described by Parkar A.A. et al, (2000), Protein Expression and Purification, 20:152.
- the purified enzyme can be used to monitor inhibitors of activity as follows: MMP-12 (50 ng/ml final concentration) is incubated for 60 minutes at room temperature with the synthetic substrate Mac-Pro-Cha-Gly-Nva- His-Ala-Dpa-NH 2 in assay buffer (0.1 M "Tris-HCI” (trade mark) buffer, pH 7.3 containing O.1 M NaCI, 2OmM CaCI 2 , 0.020 mM ZnCI and 0.05% (w/v) "Brij 35" (trade mark) detergent) in the presence (5 concentrations) or absence of inhibitors.
- assay buffer 0.1 M "Tris-HCI” (trade mark) buffer, pH 7.3 containing O.1 M NaCI, 2OmM CaCI 2 , 0.020 mM
- % Inhibition is equal to the (Fluorescence p/uS inhi b itor - Fluorescenc ⁇ bac/cground); divided by the (Fluorescence minus inhibitor - Fluorescencefcacfcgroond);
- a favoured assay employs full length recombinant human MMP-12, amino acid residues 1 to 470 (Shapiro et al 1993, J Biol Chem 268:23824-23829) expressed in mouse myeloma cell line NS-40.
- the purified rhMMP-12 typically has the N terminal sequence L 17 PLNSSTSLE and an SDS-PAGE apparent molecular mass of approx. 56 kDa.
- Such proteins are available from R&D Systems, USA as a lyophilised 0.2 um filtered solution of 25mM MES, 0.15M NaCI, 10 mMCaCI 2 , 0.15% Brij 35, pH 5.5.
- Auto-activation of the rhMMP-12 can be achieved by dilution to 0.05 mg/ml into TCNB buffer (50 mMTris, 1OmM CaCI 2 , 0.15M NaCI, 0.05% Brij 35, pH 7) and incubation at 37 degrees for 30 hours.
- a preferred buffer for MMP work is 50 mM Tris.HCI, pH 7.5, 200 mM Ca acetate.
- Suitable FRET substrates include (7-methoxycoumarin-4-yl)acetyl-Pro-Leu-Gly-Leu- (3-(2,4-dinitrophenoyl)-L-2,3-diaminopropionyl)-Ala-Arg-NH 2 , commercially available from R&D Systems, USA. Typical specific activities are >500 picomol/min/ug, with rhMMP-12 measured with 1OuM of this substrate, 20 ng activated enzyme in 100 ul TCNB buffer at room temperature.
- An alternative general MMP substrate is Dnp-PLGLWA D -R-NH 2 . nM:
- Enzyme exhibited by the compounds, an assay wherein a FRET substrate was utilized to generate a spectroscopic response to peptidase cleavage. The activity was measured by a continuous detection of increased fluorescence intensity during
- the substrate consisted of a peptide with a fluorescent donor 7- methoxycoumarin (Mca) and a quenching acceptor 2,4-dinitrophenyl group (Dpa), typically Mca-P-L-A-Q-A-V-Dpa-R-S-S-R-NH 2 (R&D Systems, ES003).
- Dpa 2,4-dinitrophenyl group
- the cleavage site by TACE is the peptide bond between Ala and VaI.
- the compounds were tested at a range of concentrations while the enzyme and substrate concentrations were fixed.
- the enzyme concentration (TACE) used was 100 ng/ml
- the substrate was prepared at a 100 ⁇ M stock solution in DMSO and a 96-well polypropylene plate was used for the reaction mixtures.
- Assay buffer 90,0 ⁇ l, enzyme (TACE) 0,09 ⁇ l and inhibitor 1 ⁇ l was added to each well of the plate.
- the reactions were started by addition of substrate 10 ⁇ l/well, giving a substrate concentration of 10 ⁇ M and a total volume of 100 ⁇ l/well.
- the total concentration of DMSO was not above 1 %.
- the assay was performed at ambient temperature.
- Product fluorescence (emission filter 320 nM, excitation filter 405 nM) was monitored with a Thermo Labsystems Fluoroskan Ascent plate reader.
- the Ki was determined by Prism Software.
- MMP-3 Human Matrix Metalloproteinase
- an assay wherein FRET was utilized to generate a spectroscopic response to peptidase cleavage was used. The activity was measured by a continuous detection of increased fluorescence intensity during 12 min.
- the substrate consisted of a peptide with a fluorescent donor 7-methoxycoumarin (Mca) and a quenching acceptor 2,4-dinitrophenyl group (Dpa), typically Mca-Arg-Pro-Lys-
- MMP-3 Pro-Val-Glu-Nval-Trp-Arg-Lys(Dnp)-NH 2
- the cleavage site by MMP-3 is the peptide bond between GIu and Nval.
- the compounds were tested at a range of concentrations, the enzyme concentration (MMP-3) was fixed at 400 ng/ml and the substrate concentrations was 10 ⁇ M.
- the MMP-3 enzyme was preactivated by dilution to 0.119 mg/ml into 1 mM APMA (p-aminophenylmercuric acetate) followed by incubation at 37 0 C for 24 hours.
- the substrate was prepared at a 100 ⁇ M stock solution in DMSO and a 96-well polypropylene plate was used for the reaction mixtures.
- assay buffer 90.0 ⁇ l enzyme (MMP-3) 0.3 ⁇ l and inhibitor 1 ⁇ l.
- the reactions were started by addition of substrate, 10 ⁇ l/well, to a total volume of 100 ⁇ l/well.
- the total concentration of DMSO was not above 1 %.
- the assay was performed at ambient temperature.
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AU2006326256A AU2006326256B2 (en) | 2005-12-14 | 2006-12-13 | (2,5-dioxoimidazolidin-I-yl)-N-hydroxy-acetamides as metalloproteinase inhibitors |
JP2008544873A JP5186384B2 (en) | 2005-12-14 | 2006-12-13 | (2,5-Dioxoimidazolidin-1-yl) -N-hydroxy-acetamide as a metalloproteinase inhibitor |
CN2006800325666A CN101258132B (en) | 2005-12-14 | 2006-12-13 | (2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors |
US12/097,192 US8022092B2 (en) | 2005-12-14 | 2006-12-13 | (2,5-dioxoimidazolidin-1-yl)-N-hydroxy-acetamides as metalloproteinase inhibitors |
CA002628159A CA2628159A1 (en) | 2005-12-14 | 2006-12-13 | (2,5-dioxoimidazolidin-1-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors |
EP06840975A EP1966153A1 (en) | 2005-12-14 | 2006-12-13 | (2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors |
BRPI0619848-1A BRPI0619848A2 (en) | 2005-12-14 | 2006-12-13 | (2,5-dioxoimidazolidin-1-yl) -n-hydroxyacetamides as metalloproteinase inhibitors |
HK08111653.7A HK1115878A1 (en) | 2005-12-14 | 2008-10-23 | (2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors |
US13/222,883 US8338471B2 (en) | 2005-12-14 | 2011-08-31 | (2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors |
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US13/222,883 Division US8338471B2 (en) | 2005-12-14 | 2011-08-31 | (2,5-dioxoimidazolidin-i-yl)-n-hydroxy-acetamides as metalloproteinase inhibitors |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2139850A1 (en) * | 2007-04-09 | 2010-01-06 | Methylgene, Inc. | Inhibitors of histone deacetylase |
WO2012005229A1 (en) | 2010-07-08 | 2012-01-12 | 科研製薬株式会社 | N-hydroxyformamide derivative and pharmaceutical containing same |
EP2907512A1 (en) | 2014-02-14 | 2015-08-19 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Inhibitors of MMP-12 as antiviral Agents |
US10023610B2 (en) * | 2014-01-17 | 2018-07-17 | Alphabeta Ab | Ligands for prevention of neurotoxicity of the alzheimer's disease related amyloid-beta peptide |
US10087221B2 (en) | 2013-03-21 | 2018-10-02 | Sanofi-Aventis Deutschland Gmbh | Synthesis of hydantoin containing peptide products |
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BRPI0716539A2 (en) | 2006-09-07 | 2016-11-01 | Emisphere Tech Inc | methods for synthesizing n- (8- [2-hydroxybenzoyl] amino) caprylic acid and sodium salt thereof |
CN106366168B (en) * | 2016-08-26 | 2020-09-15 | 上海交通大学 | Preparation method of lanthionine antibacterial peptide and dehydrogenated derivative thereof |
CN112358414B (en) * | 2019-07-25 | 2022-03-22 | 中国科学院上海药物研究所 | Unnatural amino acids and their use in protein site-directed modification and protein interactions |
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WO2002028829A2 (en) * | 2000-09-25 | 2002-04-11 | Questcor Pharmaceuticals, Inc. | Peptide deformylase inhibitors |
US20030134827A1 (en) * | 1997-10-03 | 2003-07-17 | Jingwu Duan | Novel lactam metalloprotease inhibitors |
US20050171096A1 (en) * | 2001-05-25 | 2005-08-04 | Sheppeck James E. | Hydantoins and related heterocycles as inhibitors of matrix metalloproteinases and/or TNF-alpha converting enzyme (TACE) |
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US6462063B1 (en) | 2000-02-04 | 2002-10-08 | Fibrogen, Inc. | C-proteinase inhibitors |
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US20030134827A1 (en) * | 1997-10-03 | 2003-07-17 | Jingwu Duan | Novel lactam metalloprotease inhibitors |
WO2002028829A2 (en) * | 2000-09-25 | 2002-04-11 | Questcor Pharmaceuticals, Inc. | Peptide deformylase inhibitors |
US20050171096A1 (en) * | 2001-05-25 | 2005-08-04 | Sheppeck James E. | Hydantoins and related heterocycles as inhibitors of matrix metalloproteinases and/or TNF-alpha converting enzyme (TACE) |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2139850A1 (en) * | 2007-04-09 | 2010-01-06 | Methylgene, Inc. | Inhibitors of histone deacetylase |
EP2139850A4 (en) * | 2007-04-09 | 2011-07-20 | Methylgene Inc | Inhibitors of histone deacetylase |
US9096565B2 (en) | 2007-04-09 | 2015-08-04 | Methylgene Inc. | Inhibitors of histone deacetylase |
WO2012005229A1 (en) | 2010-07-08 | 2012-01-12 | 科研製薬株式会社 | N-hydroxyformamide derivative and pharmaceutical containing same |
US10087221B2 (en) | 2013-03-21 | 2018-10-02 | Sanofi-Aventis Deutschland Gmbh | Synthesis of hydantoin containing peptide products |
US10023610B2 (en) * | 2014-01-17 | 2018-07-17 | Alphabeta Ab | Ligands for prevention of neurotoxicity of the alzheimer's disease related amyloid-beta peptide |
EP2907512A1 (en) | 2014-02-14 | 2015-08-19 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Inhibitors of MMP-12 as antiviral Agents |
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US8338471B2 (en) | 2012-12-25 |
JP2009519281A (en) | 2009-05-14 |
US20090215846A1 (en) | 2009-08-27 |
AU2006326256A1 (en) | 2007-06-21 |
US8022092B2 (en) | 2011-09-20 |
TW200825056A (en) | 2008-06-16 |
BRPI0619848A2 (en) | 2011-10-18 |
CN101258132B (en) | 2012-04-25 |
US20120015994A1 (en) | 2012-01-19 |
EP1966153A1 (en) | 2008-09-10 |
CA2628159A1 (en) | 2007-06-21 |
CN101258132A (en) | 2008-09-03 |
HK1115878A1 (en) | 2008-12-12 |
JP5186384B2 (en) | 2013-04-17 |
AU2006326256B2 (en) | 2011-11-03 |
TWI361186B (en) | 2012-04-01 |
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