EP1250324A1 - Composes biaryles, leur preparation et utilisation en therapie - Google Patents

Composes biaryles, leur preparation et utilisation en therapie

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Publication number
EP1250324A1
EP1250324A1 EP01946853A EP01946853A EP1250324A1 EP 1250324 A1 EP1250324 A1 EP 1250324A1 EP 01946853 A EP01946853 A EP 01946853A EP 01946853 A EP01946853 A EP 01946853A EP 1250324 A1 EP1250324 A1 EP 1250324A1
Authority
EP
European Patent Office
Prior art keywords
minutes
retention time
compound according
vacuo
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01946853A
Other languages
German (de)
English (en)
Inventor
Martin James Drysdale
Ian David Starkey
Terry Mark Swarbrick
Andrew John Potter
Justin Fairfield Bower
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vernalis Cambridge Ltd
Original Assignee
Ribotargets Ltd
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Filing date
Publication date
Priority claimed from GB0001926A external-priority patent/GB0001926D0/en
Application filed by Ribotargets Ltd filed Critical Ribotargets Ltd
Publication of EP1250324A1 publication Critical patent/EP1250324A1/fr
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
    • C07D213/30—Oxygen atoms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
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    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C279/00—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C279/04—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of guanidine groups bound to acyclic carbon atoms of a carbon skeleton
    • C07C279/12—Derivatives of guanidine, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups having nitrogen atoms of guanidine groups bound to acyclic carbon atoms of a carbon skeleton being further substituted by nitrogen atoms not being part of nitro or nitroso groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • 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
    • C07D209/08—Indoles; Hydrogenated indoles with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to carbon atoms of the hetero ring
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    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • 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
    • C07D209/10—Indoles; Hydrogenated indoles with substituted hydrocarbon radicals attached to carbon atoms of the hetero ring
    • C07D209/12—Radicals substituted by oxygen atoms
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    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • 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
    • 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
    • C07D209/42—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/56—Ring systems containing three or more rings
    • C07D209/80—[b, c]- or [b, d]-condensed
    • C07D209/82—Carbazoles; Hydrogenated carbazoles
    • C07D209/86—Carbazoles; Hydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D211/08—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms
    • C07D211/18—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D211/26—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hydrocarbon or substituted hydrocarbon radicals directly attached to ring carbon atoms with substituted hydrocarbon radicals attached to ring carbon atoms with hydrocarbon radicals, substituted by nitrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
    • C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
    • C07D215/12—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D215/14—Radicals substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
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    • C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
    • C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
    • C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
    • C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
    • C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
    • C07D239/52—Two oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
    • C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
    • C07D243/08—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 not condensed with other rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D277/22—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C07D277/24—Radicals substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/16—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
    • C07D295/20—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof
    • C07D295/215—Radicals derived from nitrogen analogues of carbonic acid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • C07D307/80—Radicals substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
    • C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans 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 carbon atoms of the hetero ring
    • C07D307/84—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
    • C07D307/85—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen attached in position 2
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C—CHEMISTRY; METALLURGY
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    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/14—Radicals substituted by singly bound hetero atoms other than halogen
    • C07D333/16—Radicals substituted by singly bound hetero atoms other than halogen by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D333/52—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes
    • C07D333/54—Benzo[b]thiophenes; Hydrogenated benzo[b]thiophenes with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • C07D333/56—Radicals substituted by oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • 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
    • C07D403/12—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 linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
    • C07D409/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links

Definitions

  • the present invention relates to a class of chemical compounds, their preparation and their use in therapy, particularly, in the treatment of viral and bacterial infection.
  • the present inventors have discovered a new class of chemical compounds which are particularly useful in the treatment of viral and bacterial infection.
  • Ar is an aryl group
  • X' is selected from O, S. SO. S0 2 and NR. X 2 is selected from 0. S. SO. S0 2 . NR and CR 2 . X 3 is CR 2 .
  • each R is independently selected from H. C 1 - 12 alkyl and C 3 _ ⁇ 2 aryl. or any two R groups may together comprise a C ⁇ - 6 alkylene chain, and pharmaceutically acceptable derivatives thereof.
  • Ar is an aryl group as herein defined.
  • the aryl group is a monocyclic or fused polycyclic (preferably bicyclic such as [6,5], [6,6] and [5,5] systems) aromatic or heteroaromatic group.
  • Aromatic groups include phenyl and naphthyl.
  • Heteroaromatic groups are generally preferred to the corresponding aromatic group.
  • Heteroaromatic groups may comprise one or more heteroatoms.
  • Monocyclic heteroaromatic groups include pyridyl, pyrrolyl, furanyl, thienyl and thiazolyl.
  • Heteroaromatic groups may be bonded to the rest of the molecule either via a ring carbon atom or via a ring heteroatom.
  • fused bicyclic heteroaromatic groups include [6,5] (such as indolyl, indolinyl, benzofuranyl, benzothienyl), [6,6] (such as quinolinyl, isoquinolinyl, quinoxalinyl) and [5,5] fused bicyclic heteroaromatic groups.
  • Particularly preferred fused bicyclic heteroaromatic groups comprise groups of the structure:
  • Bicyclic heteroaromatic groups of this structure may be bonded to the rest of the molecule via any position, bonding via the 2. 3. 5 or 6 position being preferred.
  • the group Ar may be substituted as herein defined. Where substituted, there are preferably one to three substituents. more prefereably one substituent.
  • X 1 mav be O. S. SO. SO ⁇ or NR.
  • X 1 is O.
  • X may be O. S. SO. SO : . NR or CR : .
  • X " is NR. more preferably NH.
  • X J is CR 2 .
  • X" is CH ; .
  • Y and Y " are independently selected from C
  • Y 1 comprises a direct chain of 1 to 5 carbon atoms linking X 1 and A.
  • Y 1 is an ethylene or ⁇ -phenylene group
  • the direct chain linking X and A has two carbon atoms.
  • Y 1 comprises a C 1 - 5 alkylene group.
  • Y " comprises a direct chain of 1 to 5 carbon atoms linking X " and B.
  • Y " comprises a C 1 - 5 alkylene group.
  • hvdroxylamine -NHOR).
  • hydroxamic acid (-CONROR), hydrazine (-NRNR 2 ).
  • a and B are independently selected from groups comprising a group selected from amine, amidine, guanidine, and aromatic and non-aromatic nitrogen heterocyclic groups.
  • the aromatic and non-aromatic nitrogen heterocyclic groups may be monocyclic (preferably 5 or 6 membered rings) or polycyclic (preferably fused bicyclic. more preferably [6,5], [6.6] and [5.5] systems) and may comprise one or more nitrogen atom.
  • aromatic nitrogen heterocyclic groups examples include pyrrolyl. pyridinyl. 2-.3- and
  • non-aromatic nitrogen heterocyclic groups include pyrrolidinyl. pyrrolidinone. piperidinyl. morpholin> l and piperazinyl groups.
  • the aromatic and non-aromatic nitrogen heterocv project groups may be substituted or unsubstituted.
  • Preferred substituents include amino groups ( -NR;).
  • the aromatic and non- aromatic nitrogen heterocyclic group may be bonded to the rest of the molecule via a ring carbon atom or via a ring nitrogen atom or via a substituent.
  • aromatic and non-aromatic nitrogen heterocyclic groups are cyclic groups which mimic amidine or guanidine groups of the general formulae
  • 2-aminopyridine 2-aminopyrimidine and 2-pyrimidine groups:
  • Each R is independently selected from H, C ⁇ - ⁇ 2 alkyl and C 3 - ⁇ 2 aryl, or any two R groups may together comprise a C ⁇ . 6 alkylene chain.
  • an R group in X " may be combined with an R group in B such that together with Y ⁇ a cyclic link is formed between X 2 and B.
  • alkyl means a branched or unbranched, cyclic or acyclic. saturated or unsaturated (e.g. alkenyl or alkynyl) hydrocarbyl radical.
  • the alkyl group is preferably a C 1 - 12 . more preferably C
  • the alkyl chain or ring may include ( i.e. be optionally interrupted with and/or terminate with) one or more heteroatoms. such as oxygen, sulphur or nitrogen.
  • alkylene means a branched or unbranched. cyclic or acylic. saturated or unsaturated divalent hydrocarbyl radical.
  • the alkylene group is preferably a C " 1 - 1 - more preferably C 1 - chain.
  • the alkylene group is preferably a C 3 - ⁇ 2 . more preferably C . ⁇ 0 . more preferably comprises a C . C 6 or C 7 ring.
  • the alkylene chain or ring may include (i.e. be interrupted and/or terminate with) one or more heteroatoms such as oxygen, sulfur or nitrogen.
  • aryl means a C 3 . 2 6, preferably C3. 1 2 . aromatic group, such as phenyl or naphthyl. or a heteroaromatic group containing one or more, preferably one. heteroatom.
  • aromatic group such as phenyl or naphthyl. or a heteroaromatic group containing one or more, preferably one. heteroatom.
  • pyridyl pyrrolyl. furanyl. thienyl, thiazolyl. indolyl, indolinyl. benzofuranyl, benzothienyl, quinolinyl. isoquinolinyl, quinoxalinyl. 2-, 3- or 4- pyrimidinyl, benzodiazolyl. benzotriazolyl. imidazolyl, triazolyl and thiazolyl groups.
  • arylene means a divalent hydrocarbyl radical comprising a C3. 12 aromatic group (such as 0-, m- or ;?-phenylene) or heteroaromatic group containing one or more, preferably one, heteroatom (such as a pyridine-2.3-diyl group).
  • aralkylene means a divalent hydrocarbyl radical comprising both alkylene and arylene groups (such as -CH 2 -(o-phenylene)-CH 2 -).
  • alkyl, aryl, alkylene, arylene and aralkv lene groups Ar, Y , Y " and R. and the groups A and B. may be further substituted or unsubstituted.
  • a Ci (methyl) group may be further substituted with a phenyl group to give a benzyl group.
  • Substituents may include carbon containing groups such as alkyl. aryl, aralkyl (e.g. substituted and unsubstituted phenyl, substituted and unsubstituted benzyl); halogen atoms (e.g. F, Cl.
  • haloalkyl e.g.trifluoromethyl
  • oxygen containing groups such as alcohols (e.g. hydroxy, hydroxyalkyl, aryl(hydroxy)alkyl).
  • ethers e.g alkoxy. alkoxyalkyl. arvloxyalkyl).
  • aldehydes e.g. carboxaldehyde
  • ketones e.g alkylcarbonyl. alkylcarbonylalkyl. arylcarbonyl. arylalkylcarbonyl. arylcarbonylalkyl
  • acids e.g. carboxy, carboxyalkyl
  • acid derivatives such as esters (e.g.
  • mono- or dialkylaminocarbonylamino or arylaminocarbonv lamino nitrogen containing groups such as amines (e.g. amino, mono- or dialkylamino. aminoalkyl, mono- or dialkylaminoalkv l). azides. nitriles (e.g. cyano. cyanoalkyl). nitro: sulfur containing groups such as thiols. thioethers. sulfoxides, and sulfones (e.g. alkylthio, alkylsulfinyl. alkylsulfonyl. alkylthioalkyl, alkylsulfinylalkyl.
  • heteroatom e.g. thienyl, furanyl, pyrrolyl, imidazolyl, pyrazo 1. thiazolyl. isothiazolyl. oxazolyl. oxadiazolyl. thiadiazolyl, pyrrol
  • alkoxy means alkyl-O- and "alkanoyl” means alkyl-CO.
  • Alkyl substituent groups or alkyl-containing substituent groups may comprise one or more further substituents.
  • aryloxy * ' means aryl -O- and '"aryloyl " means aryl -CO.
  • Aryl substituent groups or aryl-containing substituent groups may comprise one or more further substituents.
  • halogen means a fluorine, chlorine, bromine or iodine radical. preferably a fluorine or chlorine radical.
  • a pharmaceutically acceptable derivative is meant any pharmaceutically acceptable salt, addition compound, or any other compound which upon administration to a recipient is capable of providing (directly or indirectly) a compound of the present invention or a pharmaceutically acceptable metabolite.
  • pharmaceutically acceptable metabolite is meant a metabolite or residue of a compound of the present invention which gives rise to a biological activity exhibited by the present compounds.
  • a "patient” is a mammal (e.g.. such as a human being or other non-human mammal) to whom a compound according to the invention is administered.
  • the term “patient” does not imply that the individual has ever been hospitalized for medical treatment.
  • microorganism refers to a bacterial, viral, prokaryotic or eukaryotic organism which can be viewed microscopically.
  • microorganism as used herein encompasses both bacteria and viruses.
  • anti-microbial properties or “anti-bacterial properties '” or “anti-viral properties” refer to the ability of the compounds according to the invention to inhibit microbial. bacterial, viral growth.
  • inhibiting growth refers to an inhibition in the translation of microbial proteins, which in turn results in an inhibition in microbial replication (and therefore transcription of microbial mRNAs) which in turn results in an inhibition of infection. Any one of these processes (e.g.. translation, replication, transcription, infection) may be assayed to determine the effectiveness of the compounds according to the invention (e.g., defined as the ability of the compound to inhibit growth).
  • inhibiting microbial grow ⁇ Y' refers to an at least two-fold decrease in any of the parameters discussed above (e.g., translation of microbial proteins, replication of microorganisms, transcription of microbial mRNAs, and/or infection by microorganisms). Inhibition can also refer to an at least two fold decrease in an immune response associated with a microbial infection (e.g., such as the accumulation of anti-microbial antibodies or cytokines and/or pyrogens associated with microbial infection). In one embodiment, inhibition is at least 2-fold, at least 10-fold, at least 20- fold, at least 30-fold, at least 40-fold, at least 50-fold, or at least 100-fold.
  • the compound inhibits translation of a bacterial and/or viral transcript. In still a more preferred embodiment, the compound inhibits translation of a bacterial and/or viral transcript while not inhibiting translation of a mammalian transcript. In one embodiment of the invention, translation is inhibited at least 2-fold. at least 5-fold, at least 10-fold, at least 20-fold, at least 30-fold, at least 40-fold, at least 50-fold, or at least 100-fold compared to translation of bacterial and/or viral transcripts in a mammalian organism which has not been treated with the compounds according to the invention. In a further embodiment, the compound inhibits bacterial and/or viral replication. According to a further aspect of the present invention there is provided a compound according to the present invention for use in a method of treatment, preferablv in the prophylaxis or treatment of viral infection or bacterial infection.
  • a compound according to the present invention in the manufacture of a medicament for the prophylaxis or treatment of viral infection or bacterial infection.
  • a method of prophylaxis or treatment of viral infection or bacterial infection comprising administration to a patient in need of such treatment an effective dose of a compound according to the present invention.
  • the effective dose of the compound according to the invention is a dose effective to decrease the titer of infectious microorganisms in a patient ' s body.
  • the titer of infectious microorganisms is measured by culturing a bodily sample and counting the number of microorganisms in the sample.
  • the titer of infectious microorganisms is determined by measuring the expression of the bacterial or viral nucleic acids and/or proteins.
  • the effective dose of the compound is a dose effective to restore the immune response of a host (e.g., a patient) to a microorganism to normal (e.g.. to resemble an immune response of an uninfected host).
  • a bodily fluid from a patient is assayed to detect the presence and/or amounts of anti-bacterial or antiviral antibodies.
  • a compound according to the invention is administered to a patient who has both a bacterial and a viral infection.
  • the patient treated has AIDS.
  • the person has AIDS and at least one opportunistic infection.
  • a compound according to the ention is used prophylacticalh .
  • the compound is contacted with a cell or surface thereby to prev ent the growth of microorganisms in proximitv to the cell or surface.
  • the compound is administered to a patient to pre ⁇ ent infection by a microorganism or to reduce the severity of infection (e.g., as measured by determining the titer of the microorganism in a treated vs. an untreated individual).
  • Viral infections include, but are not limited to:
  • Adenovirus acute respiratory disease Arenaviruses Lassa Virus Lassa Fever Astroviridae Astrovirus Enteritis Bunvaviridae Hantavirus Hantavirus Pulmonary Syndrome Phlebo virus Riff Vallev Fever
  • Paramvxoviridae Paramyxoviruses Para-Influenza Rubulaviruses Mumps Morbilliviruses Measles Respiratory Syncytial Virus Papovaviridae Papillomaviruses Warts/Cervical Cancer Polyomaviruses BK and JC Virus
  • Picornaviridae Coxsackie Viruses ( A and B) Viral Myocarditis & Meningitis & Enteritis Hepatitis A Virus Hepatitis
  • the viral infection comprises HIV or HCV infection, more preferably HIV-I or HIV-II.
  • Bacterial infections include, but are not limited to, infections by Gram Positive Bacteria including Bacillus cereus. Bacillus anthracis, Clostridium botulinum, Clostridium difficile. Clostridium tetani, Clostridial perfringens, Corynebacteria diphtheriae. Enterococcus (Streptococcus D), Listeria Monocytogenes, Pneumoccoccal Infections (Streptococcus pneumoniae), Staphylococcal Infections and Streptococcal Infections; Gram Negative Bacteria including Bactcroides. Bordetella pertussis.
  • Vibrio cholera and Yersinia Acid Fast Bacteria including Mycobacterium tuberculosis, Mycobacterium avium-intracellulare, Mycobacterium leprae. Atypical Bacteria, Chlamydia. Mycoplasma, Rickettsia, Spirochetes. Treponema pallidum. Borrelia recurrentis. Borrelia burgdorfii and Leptospira icterohemorrhagiae: and other miscellaneous bacteria including Actinomvces and Nocardia.
  • the present invention further provides use of a compound of the present invention to inhibit the binding of Tat to Tar. It is also featuie of the compounds of the present invention that they inhibit translation of bacterial proteins Accordingly the present inv ention further prov ides use of a compound of the piesent in ention to inhibit the translation of bacterial proteins
  • a pharmaceutical composition comprising a compound of the present inv ention in combination with a pharmaceutically acceptable excipient
  • a method of preparing a phamiaceutical composition comprising the step of combining a compound of the present invention with a pharmaceutically acceptable excipient
  • Reagents (i) R'halide. Cs 2 C0 3 ; (ii) ArB(OH) 2 . Pd catalyst; (iii) R 2 R 3 NH. DCE or EtOH. reducing agent: (iv) R ⁇ CH Br PhsP*. base, toluene; (v) H 2 . Pd/C. solvent: (vi) (a) NaBH 4 . solvent, (b) Ph 3 P, CBr 4 ; (vii) HZ 2 R 2 , base, solvent.
  • the biaryl compounds according to the invention have anti-microbial (e.g.. anti-bacterial and/or anti-viral properties).
  • the compounds inhibit microbial growth. Inhibition of microbial growth can be assayed in a number of different wav s. In one embodiment, microbial growth is measured by assaying the translation of microbial proteins, levels of microbial replication, transcription of microbial mRNAs. and infectivitv (e.g., viral titer in cells exposed to a virus).
  • Assays for measuring such parameters include, but are not limited to, immunossays to detect translation products or assays which measure binding of translational regulators to mRNA transcripts (e.g., to measure translation), RT-PCT, or hybridization assays (e.g.. to measure transcription), incorporation of labeled nucleotides or hybridization assays to measure the presence/amount of microbial genomic DNA (e.g.. to measure replication), plate counting assays (e.g., to measure microbial titers), and the like.
  • compounds are synthesized according to the methods described above and the ability of the compounds to inhibition of microbial growth is assayed to identify compounds which produce an at least two-fold decrease in any of the parameters discussed above (e.g.. translation of microbial proteins, replication of microorganisms, transcription of microbial mRNAs. and/or infection by microorganisms).
  • inhibition is at least 2-fold. at least 10-fold, at least 20-fold, at least 30-fold, at least 40-fold, at least 50-fold, or at least 100-fold.
  • activity is measured in vitro, e.g., by measuring the effects of the compounds on bacterial cultures or on cells infected or to be infected with a virus.
  • compounds are selected which inhibit the growth of both bacterial and viral microorganisms.
  • compounds are selected which inhibit the growth of HIV in cells infected or to be infected with the virus.
  • compounds are selected which inhibit the growth of HIV and any of the characteristic microorganisms found in opportunistically infected AIDS patients.
  • compounds according to the inv ention are tested in animal models to determine the effects of the compounds on microbial growth as described abov e.
  • the compounds are tested for their affect on the immune response of an animal to a microbial infection to select compounds which return the immune response to normal (e.g., provide a response similar to that observed in an animal which has not been infected.
  • a bodily fluid e.g., blood
  • the animal may be tested by evaluating any of the parameters discussed above (e.g., translation of microbial proteins, replication of microorganisms, transcription of microbial mRNAs, and/or infection by microorganisms).
  • the compounds according to the invention inhibit translation of a bacterial and/or viral transcript. In still a more preferred embodiment, the compound inhibits translation of a bacterial and/or viral transcript while not inhibiting translation of a mammalian transcript. In one embodiment of the invention, translation is inhibited at least 2-fold, at least 5-fold, at least 10-fold, at least 20-fold, at least 30-fold, at least 40-fold, at least 50-fold, or at least 100-fold compared to translation of bacterial and/or viral transcripts in a mammalian organism which has not been treated with the compounds according to the invention. In one embodiment, a reporter gene is cloned downstream an in frame with a bacterial or viral translation initiation sequence, and the activity of the compounds synthesised is assayed by monitoring the presence and/or amount of the protein encoded by the reporter gene.
  • a compound according to the invention which inhibits the binding of the HIV protein Tat to the HIV RNA Tar binding site. Accordingly, the present invention further provides use of a compound of the present invention to inhibit the binding of Tat to Tar. In one embodiment, inhibition is measured directly by measuring binding of Tat to Tar. In another embodiment, inhibition is measured by measuring the production of Tat protein.
  • the compounds according to the invention are tested for their ability to prevent microbial infection.
  • the compounds are contacted to a cell and the ability of a microorganism to grow in proximity to said cell is evaluated.
  • the cell is a cell which is to be infected with a virus, and the cell is contacted with the compound prior to contacting the cell with the virus.
  • the ability of the compounds to be used prophylactically is then evaluated as described above (e.g., by assaying one or more of translation of microbial proteins, replication of microorganisms, transcription of microbial mRNAs. and/orinfection by microorganisms).
  • the compounds according to the invention are contacted with a surface and assayed for their ability to prevent microbial growth on the surface.
  • the medicament employed in the present invention can be administered by oral or parenteral routes, including intravenous, intramuscular, intraperitoneal. subcutaneous. transdermal. airway (aerosol), rectal, vaginal and topical (including buccal and sublingual) administration.
  • oral or parenteral routes including intravenous, intramuscular, intraperitoneal. subcutaneous. transdermal. airway (aerosol), rectal, vaginal and topical (including buccal and sublingual) administration.
  • the compounds of the invention will generally be provided in the form of tablets or capsules, as a powder or granules, or as an aqueous solution or suspension.
  • Tablets for oral use may include the active ingredients mixed with pharmaceutically acceptable excipients such as inert diluents, disintegrating agents, binding agents, lubricating agents, sweetening agents, flavouring agents, colouring agents and preservatives.
  • suitable inert diluents include sodium and calcium carbonate, sodium and calcium phosphate, and lactose, while corn starch and alginic acid are suitable disintegrating agents.
  • Binding agents may include starch and gelatin, while the lubricating agent, if present, will generally be magnesium stearate, stearic acid or talc.
  • the tablets may be coated with a material such as glyceryl monostearate or glyceryl distearate. to delay absorption in the gastrointestinal tract.
  • Capsules for oral use include hard gelatin capsules in which the active ingredient is mixed with a solid diluent, and soft gelatin capsules wherein the active ingredients is mixed with water or an oil such as peanut oil. liquid paraffin or olive oil.
  • Formulations for rectal administration may be presented as a suppository with a suitable base comprising for example cocoa butter or a salicylate.
  • Formulations suitable for vaginal administration may be presented as pessaries, tampons, creams, gels, pastes, foams or spray formulations containing in addition to the active ingredient such carriers as are known in the art to be appropriate.
  • the compounds of the invention will generally be provided in sterile aqueous solutions or suspensions, buffered to an appropriate pH and isotonicity.
  • Suitable aqueous vehicles include Ringer ' s solution and isotonic sodium chloride.
  • Aqueous suspensions according to the invention may include suspending agents such as cellulose derivatives, sodium alginate. polyvinyl- pyrrolidone and gum tragacanth. and a wetting agent such as lecithin.
  • Suitable preservatives for aqueous suspensions include ethyl and n-propyl p-hydroxybenzoate.
  • the compounds of the invention may also be presented as liposome formulations.
  • a suitable dose will be in the range of 0.01 to 100 mg per kilogram body weight of the recipient per day, preferably in the range of 0.2 to 10 mg per kilogram body weight per day.
  • the desired dose is preferably presented once daily, but may be dosed as two, three, four, five or six or more sub-doses administered at appropriate intervals throughout the day. These sub-doses may be administered in unit dosage forms, for example, containing 10 to 1500 mg, preferably 20 to 1000 mg, and most preferably 50 to 700 mg of active ingredient per unit dosage form.
  • the compounds are used to prevent or delay the onset of HIV-infection in individuals who are susceptible or at risk of HIV-infection (e.g., intravenous drug users, patients who have had. or are about to receive. a blood transfusion, immunodeficient or immunocompromised patients, gay men. and the like)
  • the method comprises administering to such a patient a prophylactically effective amount (which generally is the same as a therapeutically effective amount) of one or more of the compositions according to the present invention to the patient to delay or prevent an HIV-infection.
  • the compounds are used to treat an already-infected patient (e.g...
  • the compounds may be used by themselves or in conjunction with other drugs (e.g.. protease inhibitors, antibiotics) or other therapies.
  • drugs e.g.. protease inhibitors, antibiotics
  • the compounds of the present invention were synthesized according to the following protocols and characterized by standard spectroscopic techniques including LCMS under the following conditions.
  • Solvents A - Water + 0.1% formic acid + lOmmol ammonium acetate
  • Reagents (i) BrCH2CH 2 NHBoc. Cs 2 C0 3 , DMF; (ii) ArB(OH) 2 , PdCl 2 (PPh 3 )2. DME, Na 2 C0 3 ; (iii) BocNH(CH 2 ) 4 NH 2 , DCE, sodium triacetoxyborohydride; (iv) TFA/DCM, 1/1 ; (v) N,N'-bis-t-butoxycarbonylpyrazolecarboxamidine, N,N-diisopropylethylamine, CH 3 C ⁇ .
  • the bis-Boc compound was treated with lmL of 1/1 DCM/TFA and stirred at RT for lh.
  • the TFA salt was stirred in acetonitrile, treated with excess N,N-diisopropylethylamine and N,N ' -bis-t-butoxycarbonylpyrazole carboxamidine added. The mixture was stirred overnight at RT then concentrated in vacuo. The residue was partitioned between dichloromethane and water, the organic layer washed with brine and dried over MgS0 .
  • Reagents (i) Br(CH 2 ) 3 NHBoc. Cs 2 C0 3 , DMF; (ii) ArB(OH) 2 , PdCl 2 (PPh 3 ) 2 . DME. Na 2 C0 3 ; (iii) (N,N'-bis-t- butoxycarbonylcarboxamidine)NH(CH 2 ) NH 2 . DCE, sodium triacetoxyborohydride; (iv) TFA/DCM, 1/1.
  • Reagents (i) Br(CH 2 ) 3 ⁇ HBoc, Cs 2 C0 3 , DMF; (ii) ArB(OH) 2 , PdCl 2 (PPh 3 ) 2 , DME. Na 2 C0 3 ; (iii) R'R 2 NH 2 , DCE. sodium triacetoxyborohydride; (iv) TFA DCM. 1/1.
  • Reagents (i) R " NH 2 , DCE, sodium triacetoxyborohydride; (ii) Di-t-butyl dicarbonate.
  • the N-protected phthalimide (1 eq.) was treated with hydrazine hydrate (15 eq.) in EtOH for 18 h then concentrated in vacuo keeping the water bath below 40°C. The residue was dissolved in EtOAc and the organic layer washed exhaustively with water and finally with brine. The organic fraction was dried (MgS0 4 ), concentrated in vacuo and purified by column chromatography on silica, eluting with 75%EtOAc/hexane. then 5%MeOH/DCM.
  • the bis-Boc compound was treated with 1 mL of 1/1 DCM/TFA and stirred at RT for lh. The volatiles were removed in vacuo to give the desired mono-guanidine as the bis- trifluoroacetate.
  • Reagents (i) Bis(pinacolato)diboron. KOAc, DMSO. PdCl (dppf) 2 ; (ii) Arylboronic acid. DMF, K 3 P0 4 . PdCl 2 (dppf) 2 ; (iii) (N.N " -bis-t-butoxycarbonyl)NH(CH 2 ) 3 CH 2 NH 2 . DCE. sodium triacetoxyborohydride; (iv) TFA DCM, 1/1.
  • Reagents (i) BnBr. Cs 2 C0 3 . DMF ; (ii) ArB(OH) 2 . DME. K C0 . PdCl 2 (PPh 3 )2 : (iii ) BCl 3 -SMe 2 . DCM; (iv) R,R 2 NH, MeOH-CH 2 Cl 2 (1 : 1 v/v). Amberiyst A-26 borohvdride resin; (v) Boc 2 0. DIPEA, MeCN: (vi) EtOH. Cs 2 C0 3 . then R 3 X, DMF.
  • Reagents (i) N-Boc-bromopropylamine, Cs 2 CU 3 , DMF; (ii) 2-Benzo[b]thiopheneboronic acid, DME, PdCl 2 (PPh 3 ) 2 , K 2 C0 3 ; (iii) (a) ⁇ H 2 OH.HCl, Et 3 N, 1,2-DCE. (b) H 2 , 10%Pd/C, MeOH, CHC1 3 ; (iv) (a) RC0 2 H. HBTU. TEA. (b) TFA/DCM. 1/1.
  • Reagents (i) (a) TFA DCM, (b) 2-Nitro-phenylsulfonyl chloride, TEA. DCM; (ii) RX. Cs 2 C0 3 , DMF; (iii) PhSH. DBU, CH 3 CN: (iv) Boc 2 0. DIPEA, CH 3 CN; (v) l-amino-4- (N.N , -bis-Bocguanidino)butane, NaB(OAc) 3 H, 1,2-DCE; (vi)TFA/DCM, 1/1.
  • DBU (5 eq.) and thiophenol (4 eq.) were stirred together in DMF for 2h hours.
  • the mixture was concentrated in vacuo and partitioned between EtOAc and water, the organic lav er dried (MgS0 ) and concentrated in vacuo.
  • the compound was then re- dissolved in acetonitrile and stirred for 18 hours with di-'butyl dicarbonate (2 eq. ) and di- isopropylethylamine (2 eq. ).
  • the resultant mixture was poured into water and extracted with ethv l acetate.
  • the organic fraction was dried (MgS0 ). filtered and concentrated in vacuo to giv e the desired compound.
  • RNA is titrated in the presence of a constant amount of fluorescent donor (fluorescein- ADP-1 peptide) and compound as described in International Patent Application W099/64625.
  • the assay is performed under competitive conditions, with a two fold excess of competitor RNA (a fully base-paired TAR sequence ) over fluorescein- ADP-1 peptide (the fluorescent donor).
  • the TAR RNA contains a 3 ' dabcyl group.
  • the dabcyl group is a non-fluorescent acceptor for energy transfer from tluorescein (the fluorescent donor).
  • Measurements were made in a 96-well plate reader (Wallac victor) with a fixed wavelength of 490nm and emission at 535 nm.
  • Io vvas determined by an initial measurement of a 95 ⁇ L solution of l OnM Fluoresein-ADP-1 in the presence of 50mM Tris.HCl pH7.5, 80mM KC1 ,1% DMSO 0.01% Triton X-100. 5 ⁇ g/mL BSA . 20nM competitor RNA in the presence l ⁇ M compound. I was then measured following the addition of 5 uL of a 20 X DABCYL-TAR RNA stock solution.
  • Compounds of the present invention showed inhibitory activities in in vitro translation assays utilizing E. coli extracts.
  • the plasmid pBestLuc. which contained the gene for firefly luciferase downstream of an E. coli promoter and a ribosome binding site was used as a template.
  • the activity of the firefly luciferase enzyme resulted in a strong luminescent signal.
  • the luminescence generated was a direct measurement of protein expression and of translation efficiencv.
  • Translation reactions in the presence of compound were started by mixing a translation premix that contained Mg ⁇ . plasmid template, amino acids, nucleotidetriphosphates. phosphocreatine. creatine phosphokinase and folinic acid with the S30 extract that contains RNA polymerase. ribosomes and translation factors (prepared from E.coli MR ⁇ 600 cells) followed bv incubation at 37°C.
  • the activity of the translated luciferase protein was measured by adding an aliquot of the translation reaction to the non-luminescent substrate luciferin and the luminescence measured.
  • the luminescence w as quantified in a luminescence plate reader (Wallac Victor). Compounds were assayed 3-5 times over a range of concentrations and an IC 50 calculated.
  • the in vivo therapeutic efficacy of the compounds of the invention is measured by intramuscular injection to mice experimentally infected with a pathogenic gram positive or gram negative bacterium (e.g. methicillin-resistant Staphylococcus aureus (MRSA), Clostridium difficile. Klebsiella pneumoniae. Eschericia coli, Haemophilus influenzae. etc.).
  • MRSA methicillin-resistant Staphylococcus aureus
  • MRSA methicillin-resistant Staphylococcus aureus
  • Clostridium difficile Klebsiella pneumoniae. Eschericia coli, Haemophilus influenzae. etc.
  • MRSA strain A27223 can be used.
  • MRSA strain A27223 is prepared for experimental infection by growth on two large Brain Heart Infusion Agar plates. On each plate. 0.5 ml of frozen stock culture is plated out. Plates are then incubated for 18 hours at 30 ° C. The next day each plate is washed with 20 ml of Brain Heart Infusion Broth and then pooled together. A microscopic direct count of microorganisms is done using a 1 : 1000 dilution of plate wash. After a direct count is obtained, the number of organisms per milliliter is calculated. The count is adjusted to the desired amount of inoculum by diluting in 4% hog mucin.
  • the desired challenge (amount of organisms given to mice) is 2.4 x 10 8 cfu/0.5 ml/mouse for MRSA strain A27223.
  • the mice are infected intraperitoneally with 0.5 ml of challenge.
  • Ten non-treated infected mice are used as controls.
  • Mice used are adult male ICR mice.
  • the average weight of the animals should range from 20 to about 26 grams.
  • a PD 50 (protective dose-50. the dose of drug given which protects 50% mice from mortality) runs for 5 da s. During this time, mortality of mice is checked ev ery day and deaths are recorded. The cumulative mortality at each dose level is used to calculate a PD 50 value for each compound. Surviving mice are sacrificed at the end of day 5 by C0 2 inhalation. The actual calculation of PD 50 is performed with a computer program using the Spearman-Karber procedure.
  • a compound according to the invention is effective for the treatment of bacterial infection if it has a PD 5 0 of about 100 mg/kg or less.
  • the in vivo therapeutic efficacy of the compounds of the invention is measured by conventional in vivo antiviral assays including, but not limited to. that described in Letvin. N.L.. Daniel, M.D.. Sehgal. P.K., Desrosiers, R.C., Hunt. R.D.. Waldron. L.M.. MacKey. J.J.. Schmidt. D.K.. Chalifoux. L.V. and King. N.W. Introduction of AIDS-like disease in macaque monkeys with T-cell tropic retrovirus STLV-III. Science, 1985. 230. 71-73. which is incorporated herein by reference.

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Abstract

L'invention concerne des composés biaryles, leur préparation et leur utilisation dans le traitement d'infections bactériennes et virales.
EP01946853A 2000-01-27 2001-01-29 Composes biaryles, leur preparation et utilisation en therapie Withdrawn EP1250324A1 (fr)

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US17843300P 2000-01-27 2000-01-27
GB0001926A GB0001926D0 (en) 2000-01-27 2000-01-27 Biaryl compounds their preparation and their use in therapy
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