WO1999067250A1 - Syntheses of a variety of lamellarin compounds and analogues - Google Patents
Syntheses of a variety of lamellarin compounds and analogues Download PDFInfo
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- WO1999067250A1 WO1999067250A1 PCT/AU1999/000516 AU9900516W WO9967250A1 WO 1999067250 A1 WO1999067250 A1 WO 1999067250A1 AU 9900516 W AU9900516 W AU 9900516W WO 9967250 A1 WO9967250 A1 WO 9967250A1
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- 0 CN1C(C(*C(*)(*)**)=O)=CC(*)C1 Chemical compound CN1C(C(*C(*)(*)**)=O)=CC(*)C1 0.000 description 3
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/04—Ortho-condensed systems
- C07D491/044—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring
- C07D491/052—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being six-membered
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/12—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains three hetero rings
- C07D491/14—Ortho-condensed systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
Definitions
- the present invention is generally directed to intermediates useful in the preparation of compounds useful in therapy. More specifically, the present invention relates to intermediates useful in the preparation of a class of fused polycyclic alkaloids. The invention also relates to methods for the preparation of the fused polycyclic alkaloids and their analogues and derivatives.
- Naturally occurring molecules which exhibit potentially beneficial pharmacological properties are isolable from a range of environments, such as marine, plant and microbial sources.
- One example of such molecules is the general class of compounds known as the Lamellarins.
- Lamellarins C and D have been shown to cause inhibition of cell division in fertilised sea urchin assay, whereas Lamellarins I, K and L all exhibit comparable and significant cytoxicity against P388 and A549 cell lines in culture.
- Lamellarin N has been shown to exhibit activity in lung cancer cell lines by acting as a Type IV microtubule poison.
- these compounds have also been shown to possess cytotoxic activity on multidrug resistant cells as well as efficacy as non-toxic modulators of the multidrug resistant phenotype and, therefore, afford an attractive potential source of chemotherapeutic agents.
- Lamellarins are severely limited by the modest quantities produced naturally as well as the difficulties involved in their isolation.
- the present invention now provides an alternative method via a synthetic intermediate, which allows for the incorporation of a range of substitution patterns and potentially permits access to a variety of Lamellarin compounds and analogues containing the fused polycyclic-pyrrole core.
- the invention relates to a method for the preparation of a compound of Formula
- a ⁇ i 4 i are each independently selected from hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally protected hydroxy, optionally substituted amino, optionally substituted alkoxy, optionally substituted alkenoxy, optionally substituted alkynoxy, optionally substituted aryl, optionally substituted heterocyclyl, carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, optionally substituted alkylthio, halogen, nitro, sulfate, phosphate and cyano; or R ⁇ and R A3 may optionally together form a bond and R A1 and R A4 are as defined above or together with the carbon atoms to which they are attached form an optionally substituted carbocyclic or heterocyclic group; or
- R ⁇ and R A3 together with the carbon atoms to which they are attached form an optionally substituted saturated or unsaturated carbocyclic or heterocyclic group; or forms an optionally substituted aryl group or aromatic heterocyclic group;
- Y is selected from hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally protected hydroxy, optionally substituted amino, optionally substituted alkoxy, optionally substituted alkenoxy, optionally substituted alkynoxy, optionally substituted aryl, optionally substituted heterocyclyl, carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, optionally substituted alkylthio, halogen, nitro, sulfate, phosphate and cyano;
- W and X are as defined for Y, or together with the nitrogen and carbon atoms to which they are attached, form a saturated or unsaturated nitrogen containing heterocyclic group which may be optionally substituted or optionally fused to a saturated or unsaturated carbocyclic group, aryl group or heterocyclic group;
- V represents a halogen or hydrogen atom
- Z is -(CH 2 ) n -U-(CH 2 ) 0 - where U is selected from CH 2 NH or a heteroatom, and n and o are independently selected from 0, 1, 2 or 3.
- the present invention provides an intermediate compound useful in the preparation of compounds of Formula (II), wherein said intermediate is of Formula (I): wherein:
- R A1"A4 are each independently selected from hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally protected hydroxy, optionally substituted amino, optionally substituted alkoxy, optionally substituted alkenoxy, optionally substituted alkynoxy, optionally substituted aryl, optionally substituted heterocyclyl, carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, optionally substituted alkylthio, halogen, nitro, sulfate, phosphate and cyano; or R ⁇ and R A3 may optionally together form a bond and R A1 and R A4 are as defined above or together with the carbon atoms to which they are attached form an optionally substituted carbocyclic or heterocyclic group; or
- R ⁇ and R A3 together with the carbon atoms to which they are attached form an optionally substituted saturated or unsaturated carbocyclic or heterocyclic group; or R A1 R A2 C-CR A3 R A4 forms an optionally substituted aryl group or aromatic heterocyclic group;
- Y is selected from hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally protected hydroxy, optionally substituted amino, optionally substituted alkoxy, optionally substituted alkenoxy, optionally substituted alkynoxy, optionally substituted aryl, optionally substituted heterocyclyl, carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, optionally substituted alkylthio, halogen, nitro, sulfate, phosphate and cyano;
- W and X are as defined for Y, or together with the nitrogen and carbon atoms to which they are attached, form a saturated or unsaturated nitrogen containing heterocyclic group which may be optionally substituted or optionally fused to a saturated or unsaturated carbocyclic group, aryl group or heterocyclic group;
- V represents a halogen or hydrogen atom;
- Z is -(CH 2 ) n -U-(CH 2 ) 0 - where U is selected from CH 2 NH or a heteroatom, and n and o are independently selected from 0, 1, 2 or 3.
- alkyl denotes straight chain, branched or cyclic fully saturated hydrocarbon residues. Unless the number of carbon atoms is specified the term preferably refers to C ⁇ alkyl or cycloalkyl.
- straight chain and branched alkyl include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, amyl, isoamyl, sec- amyl, 1,2-dimethylpropyl, 1,1-dimethyl-propyl, hexyl, 4-methylpentyl, 1-methylpentyl, 2- methylpentyl, 3-methylpentyl, 1,1-dimethylbutyl, 2,2-dimethylbutyl, 3,3-dimethylbutyl, 1,2-dimethylbutyl, 1,3-dimethylbutyl, 1,2,2,-trimethylpropyl, 1,1,2-trimethylpropyl,
- cyclic alkyl examples include mono- or polycyclic alkyl groups such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl, cyclodecyl and the like.
- alkenyl denotes groups formed from straight chain, branched or cyclic hydrocarbon residues containing at least one carbon-carbon double bond including ethylenically mono-, di- or poly-unsaturated alkyl or cycloalkyl groups as previously defined. Unless the number of carbon atoms is specified the term preferably refers to C j _2o alkenyl.
- alkenyl examples include vinyl, allyl, 1 -methyl vinyl, butenyl, iso- butenyl, 3-methyl-2-butenyl, 1-pentenyl, cyclopentenyl, 1-methyl-cyclopentenyl, 1- 5 hexenyl, 3-hexenyl, cyclohexenyl, 1-heptenyl, 3-heptenyl, 1-octenyl, cyclooctenyl, 1- nonenyl, 2-nonenyl, 3-nonenyl, 1-decenyl, 3-decenyl, 1,3-butadienyl, l-4,pentadienyl, 1,3-cyclopentadienyl, L,3-hexadienyl, 1,4-hexadienyl, 1,3-cyclohexadienyl, 1,4- cyclohexadienyl, 1 ,3-cycloheptadienyl, 1,3,5-
- alkynyl denotes groups formed from straight chain, branched or cyclic hydrocarbon residues containing at least one carbon-carbon triple bond including ethynically mono-, di- or poly- unsaturated alkyl or cycloalkyl groups as previously defined. Unless the number of carbon atoms is specified the term preferably refers to C,_
- Examples include ethynyl, 1-propynyl, 2-propynyl, and butynyl isomers, and pentynyl isomers.
- alkoxy, alkenoxy and alkynoxy respectively denote alkyl, alkenyl and alkynyl groups as hereinbefore defined when linked by oxygen.
- halogen denotes fluorine, chlorine, bromine or iodine.
- aryl denotes single, polynuclear, conjugated and fused residues of aromatic hydrocarbon ring systems.
- aryl include phenyl, biphenyl, terphenyl, 25 quaterphenyl, naphthyl, tetrahydronaphthyl, anthracenyl, dihydroanthracenyl, benzanthracenyl, dibenzanthracenyl, phenanthrenyl, fluorenyl, pyrenyl, idenyl, azulenyl, chrysenyl.
- heterocyclic denotes mono- or polycarbocyclic groups, including aryl, 30 wherein at least one carbon atom is replaced by a heteroatom, preferably selected from nitrogen, sulphur and oxygen.
- aryl preferably selected from nitrogen, sulphur and oxygen.
- Suitable heterocyclic groups include N-containing heterocyclic groups, such as, unsaturated 3 to 6 membered heteromonocyclic groups containing 1 to 4 nitrogen atoms, for example, pyrrolyl, pyrrolinyl, imidazolyl, imidazolinyl, pyrazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazolyl or tetrazolyl; saturated 3 to 6-membered heteromonocyclic groups containing 1 to 4 nitrogen atoms, such as, pyrrolidinyl, imidazolidinyl, piperidyl, pyrazolidinyl or piperazinyl; condensed saturated or unsaturated heterocyclic groups containing 1 to 5 nitrogen atoms, such as, indolyl, isoindolyl, indolinyl, isoindolinyl, indolizinyl, isoindolizinyl, benz
- 1 to 3 nitrogen atoms such as, oxazolyl, oxazolinyl, isoxazolyl, furazanyl or oxadiazolyl; saturated 3 to 6-membered heteromonocyclic group containing 1 to 2 oxygen atoms and 1 to 3 nitrogen atoms, such as, morpholinyl; unsaturated condensed heterocyclic group containing 1 to 2 oxygen atoms and 1 to 3 nitrogen atoms, such as, benzoxazolyl or benzoxadiazolyl; unsaturated 3 to 6-membered heteromonocyclic group containing 1 to 2 sulphur atoms and 1 to 3 nitrogen atoms, such as, thiazolyl, thiazolinyl or thiadiazoyl; saturated 3 to 6-membered heteromonocyclic group containing 1 to 2 sulphur atoms and 1 to 3 nitrogen atoms, such as, thiazolidinyl; and unsaturated condensed heterocyclic group containing 1 to
- acyl refers to a carboxylic acid residue wherein the OH is replaced with a residue, for example, as defined for W, X, and Y and specifically may denote carbamoyl, aliphatic acyl group or acyl group containing an aromatic ring, which is referred to as aromatic acyl or a heterocyclic ring, which is referred to as heterocyclic acyl, preferably C j _2 Q ac y -
- suitable acyl include carbamoyl; straight chain or branched alkanoyl such as formyl, acetyl, propanoyl, butanoyl, 2-methylpropanoyl, pentanoyl, 2,2- dimethylpropanoyl, hexanoyl, heptanoyl, octanoyl, nonanoyl, decanoyl, undecanoyl, dodecanoyl, tridecanoyl, tetrade
- phenylacetyl phenylpropanoyl, phenylbutanoyl, phenylisobutylyl, phenylpentanoyl and phenylhexanoyl
- naphthylalkanoyl e.g. naphthylacetyl, naphthylpropanoyl and naphthylbutanoyl]
- aralkenoyl such as phenylalkenoyl (e.g.
- phenylpropenoyl, phenylbutenoyl, phenylmethacryloyl, phenylpentenoyl and phenylhexenoyl and naphthylalkenoyl e.g. naphthylpropenoyl, naphthylbutenoyl and naphthylpentenoyl
- aralkoxycarbonyl such as phenylalkoxy carbonyl
- benzyloxycarbonyl aryloxy carbonyl such as phenoxycarbonyl and napthyloxy carbonyl; aryloxyalkanoyl such as phenoxy acetyl and phenoxypropionyl; arylcarbamoyl such as phenylcarbamoyl; arylthiocarbamoyl such as phenylthiocarbamoyl; arylglyoxyloyl such as phenylglyoxyloyl and naphthylglyoxyloyl; arylsulfonyl such as phenylsulfonyl and napthylsulfonyl; heterocycliccarbonyl; heterocyclicalkanoyl such as thienylacetyl, thienylpropanoyl, thienylbutanoyl, thienylpentanoyl, thienylhexanoyl, thiazoly
- acyloxy refers to acyl, as herein before defined, when linked by oxygen.
- a group may or may not be further substituted or fused (so as to form a condensed polycyclic group) with one or more groups selected from alkyl, alkenyl, alkynyl, aryl, halo, haloalkyl, haloalkenyl, haloalkynyl, haloaryl, hydroxy, alkoxy, alkenyloxy, aryloxy, benzyloxy, haloalkoxy, haloalkenyloxy, haloaryloxy, nitro, nitroalkyl, nitroalkenyl, nitroalkynyl, nitroaryl, nitroheterocyclyl, amino, alkylamino, dialkylamino, alkenylamino, alkynylamino, arylamino, diary lamino, benzylamino, dibenzylamino, acyl, alkenylacyl, alkenylacyl, alkenylacyl,
- a group such as a hydroxy group may or may not be protected by a protecting group.
- Suitable protecting groups are known and examples thereof are described in Protective Groups in Organic Synthesis, by T.W. Greene, (1981), John Wiley & Son.
- heteroatom refers to any atom other than a carbon atom which may be a member of a cyclic organic compound.
- suitable heteroatoms include nitrogen, oxygen, sulfur, phosphorous, boron, silicon, arsenic, sellenium and telluruim, especially nitrogen, oxygen and sulfur.
- U as defined in Z, is selected from one of CH 2 , NH, oxygen or sulfur. More preferably U is NH or oxygen. Most preferably, U is oxygen.
- n + o 0, 1, 2, 3 or 4. Suitable examples of Z include -O-CH 2 -, -CH 2 -N-, -O-CH 2 -O-, -(CH 2 ) 3 -, -CH 2 - NH-CH 2 - or -CH 2 -O-CH 2 -.
- n and o are both zero.
- V is hydrogen, iodine or bromine.
- the group is preferably optionally substituted quinolinyl, optionally substituted isoquinolinyl, optionally substituted dihydroquinolinyl, optionally substituted dihydroisoquinolinyl, optionally substituted pyridyl or dihydro or tetrahydro congeners thereof, or optionally substituted phenanthridine.
- W and X together with the nitrogen and carbon atoms to which they are attached form an optionally substituted isoquinolinyl or optionally substituted dihydroisoquinolinyl group of general Formula (i):
- R 1 - R 4 and R 14 are as defined for Y above, and represents an optional double bond.
- R 1 - R 4 of Formula (i) are hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substituted amino,; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl; or sulfate. Most preferably they are hydrogen, hydroxy, methoxy, ethoxy, iso-propoxy, methyl, ethyl, propyl, acetoxy or sulfate.
- R 14 is hydrogen or hydroxy.
- R A1 R A2 C- CR A3 R A4 when R A1 R A2 C- CR A3 R A4 form an aryl group or an aromatic heterocyclic group, it may be an optionally substituted benzene or naphthalene ring or an optionally substituted aromatic heterocyclic group such as pyridine, furan, pyrrole or thiophene and benzene-fused analogues thereof, for example, quinoline, indole, benzofuran and benzothiophene. Attachment of the bicyclic heterocyclic group may be via the benzene or heterocyclic ring.
- R A1 R A2 C-CR A3 R A4 forms an optionally substituted benzene group.
- the substituents are hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substituted amino,; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl; or sulfate.
- they are hydrogen, hydroxy, methoxy, ethoxy, iso-propoxy, methyl, ethyl, propyl, acetoxy or sulfate.
- R A1 - A4 are preferably independently selected from hydrogen, optionally substituted alkyl, optionally protected hydroxy, optionally substituted alkoxy, optionally substituted phenyl or acyloxy.
- at least one of R A1 or R A3 may be hydrogen.
- both R A1 and R A3 are hydrogen.
- three or four of R A1 - A4 are hydrogen.
- R A1 and R A4 each may be independently selected from hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substituted amin or; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl.
- one or both of R A1 and R A4 are hydrogen.
- R ⁇ and R A3 together with the carbons to which they are attached, form a carbocyclic or heterocyclic group as defined above, preferably they form a 3 to 8- membered cyclic group, preferably 5 to 6-membered cyclic group.
- they form a cyclopentane, cyclohexane, cyclopentene, cyclohexene, cyclopentadiene, cyclohexadiene, tetrahydrofuran, dihydrofuran, pyrrolidine, pyrroline, pyran, dihydrophyran, tetrahydropyran or piperidene group.
- R A1 and R A4 are hydrogen.
- Y is preferably an optionally substituted phenyl group of Formula (ii):
- R 9 - R 13 are as defined for R 1 - R 4 and R 14 as described above.
- R 9 - R 13 are hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substituted amino,; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl; or sulfate.
- R 9 - R 13 are selcted from hydrogen, hydroxy, methoxy, ethoxy, iso-propoxy, methyl, ethyl, n-propyl, isopropyl, acetoxy or sulphate.
- Another preferred embodiment of Formula (I) is a compound of Formula (la) where X is hydrogen and W is a group of the formula (iii);
- the present invention relates to a method for the preparation of a compound of Formula (Ila):
- R AI-A4 v> ⁇ > z are as defmed above .
- R B1"B4 are each independently selected from hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally protected hydroxy, optionally substituted amino, optionally substituted alkoxy, optionally substituted alkenoxy, optionally substituted alkynoxy, optionally substituted aryl, optionally substituted heterocyclyl, carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, optionally substituted alkylthio, halogen, nitro, sulfate, phosphate and cyano; or
- R B2 and R B3 may optionally together form a bond and R A1 and R A4 are as defined above or together with the carbon atoms to which they are attached form an optionally substituted carbocyclic or heterocyclic group; or
- R B2 and R B3 together with the carbon atoms to which they are attached form an optionally substituted saturated or unsaturated carbocyclic or heterocyclic group; or R B1 R B2 C-CR B3 R B4 form an optionally substituted aryl group or aromatic heterocyclic group; and m is selected from 1, 2, 3 or 4.
- R »A A 1 1 -A4 , R D B1-B4 , V, Y, Z and m are as defined above and optionally, one or more (CH 2 ) groups of (CH 2 ) m defined in formula (iii) may be optionally substituted by a group R 14 as defined above.
- n is 1 or 2. Even more preferably m is 2.
- R B1 R B2 C- CR B3 R B4 when R B1 R B2 C- CR B3 R B4 form an aryl group or an aromatic heterocyclic group, it may be an optionally substimted benzene or naphthalene ring or an optionally substituted aromatic heterocyclic group such as pyridine, furan, pyrrole or thiophene and benzene-fused analogues thereof, for example, quinoline, indole, benzofuran and benzothiophene. Attachment of the bicyclic heterocyclic group may be via the benzene or heterocyclic ring.
- R B1 R B2 C _ CR B3 R B4 fo ⁇ ns an opt i ona ⁇ ly substituted benzene group.
- R B1 R B2 C- CR B3 R B4 forms a benzene group (containing the substituent V) cyclization can afford a group of formula (i) as described herein above.
- the substituents are hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substituted amino,; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl; or sulfate.
- they are hydrogen, hydroxy, methoxy, ethoxy, iso-propoxy, methyl, ethyl, propyl, acetoxy or sulfate.
- R B1_B4 are preferably independently selected from hydrogen, optionally substituted alkyl, optionally protected hydroxy, optionally substituted alkoxy, optionally substituted phenyl or acyloxy. In one preferred embodiment, at least one of B i 0J . R B3 ma y t ⁇ e hydrogen. In another embodiment, both R B1 and R B3 are hydrogen. In yet a further emodiment, three or four of R B1 - B4 are hydrogen.
- R B1 and R B4 each may be independently selected from hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substimted amin or; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl.
- one or both of R A1 and R A4 are hydrogen.
- R B2 and R B3 together with the carbons to which they are attached, form a carbocyclic or heterocyclic group as defined above, preferably they form a 3 to 8- membered cyclic group, preferably 5 to 6-membered cyclic group.
- they form a cyclopentane, cyclohexane, cyclopentene, cyclohexene, cyclopentadiene, cyclohexadiene, tetrahydrofuran, dihydrofuran, pyrrolidine, pyrroline, pyran, dihydrophyran, tetrahydropyran or piperidene group.
- R B1 and R B4 are hydrogen.
- Especially preferred compounds of Formula (I) have the structure of Formula (lb) below:
- R 1 - R 14 are independently selected from hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally protected hydroxy, optionally substituted amino, optionally substituted alkoxy, optionally substituted alkenoxy, optionally substituted alkynoxy, optionally substituted aryl, optionally substituted heterocyclyl, carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, optionally substituted alkylthio, halogen, nitro, sulfate, phosphate and cyan.
- R 1 - R 14 are selected from hydrogen; hydroxy; optionally substituted alkyl; optionally substituted alkyloxy; acyloxy; carboxy; carboxy ester, wherein the ester is preferably methyl, ethyl, propyl or butyl ester; optionally substituted amino, such as mono or dialkyl amino; carboxamido, wherein the nitrogen atom thereof is optionally substituted by one or two alkyl groups independently selected from methyl, ethyl, propyl or butyl; or sulfate.
- R 1 - R 13 are selected from hydrogen; hydroxy; optionally substituted alkyl, such as methyl, ethyl or propyl; optionally substituted alkyloxy such as methoxy, ethoxy, n-propoxy, iso-propoxy; acyloxy such as acetoxy; or sulfate and R14 is preferably hudrogen or hydroxy.
- V is as defined above, preferably hydrogen, iodine or bromine.
- the intramolecular cyclizations of compounds of Formula (I), preferably of Formula (la) or (lb), to form the polycyclic fused compounds of Formula (II), preferably of Formula (la) or (lib) can be carried out by any suitable means known to those skilled in the art. Suitable methods are described below, however, any other method which will effect the desired cyclization also forms part of the present invention. It will be understood that the groupsV, W, X, Y, Z, R A1_A4 , R B1_B4 , and R 4 are such that they do not interfere with the cyclization process.
- V represents a hydrogen atom
- an oxidative intramolecular cyclization process such as those described by Black et al, Tetrahedron Lett. , 1989, 30, 5807 and Kita et al, Chem. Commum, 1996, 1481, may be used to effect the cyclization.
- V is a halogen atom
- the intramolecular cyclization may proceed via the generation of a suitable radical in an analogous manner to those described by Antonio et al, Can. J. Chem., 1994, 72, 15 and Moody et al, Tetrahedron Lett. , 1995, 36, 9501.
- the intramolecular Pd[0] -catalyzed olefination of an organic halide is known to those skilled in the art and can be carried out by any suitable combination of reagents which will provide palladium in the zero state (Pd[0]).
- Suitable combinations of reagents for effecting Pd[0]-catalysed cyclization are described, for example, in Burwood et al, Tetrahedron Lett. , 1995, 36, 9053; Desarbe et al, Heterocycles, 1995, 41, 1987; Harayoma et al, Chem. Pharm. Bull , 1997, 45, 1723; and Grigg et al, Tetrahedron, 1995, 50, 359.
- Pd[0]-catalysed cyclization of Formula (I) may be effected by generating Pd[0] in situ by a combination of a Pd[H] reagent and a "ligand", and further providing a base for regeneration of the Pd[0] catalyst.
- Suitable examples of a Pd[II]/Pd[0] reagent include, but are not limited to: Pd(OAc) 2 , PdCl 2 (CH 3 CN) 2 PdCl 2 (PPh 3 ) 2 Pd(C 6 H 5 CN) 2 Cl 2 , Pd(dibenzylideneacetone) 3 .
- ligand providing reagents include, but are not limited to: PPh 3 , P(o-tolyl) 3 ; l,3-bis[diphenylphosphino]propane and l,3-bis[diphenylphosphino]ethane.
- Suitable bases for regenerating Pd[0] from Pd[IIJ, which is formed during the Pd[0]- catalysed cyclization include, but are not limited to; alkylamines, such as triethylamine and diisopropylethylamine; acetates, such as sodium acetate and potassium acetate; carbonates such as potassium carbonate, sodium carbonate, silver carbonate; and hydroxides such as sodium and potassium hydroxide.
- the cyclizations may be effected by the radical, oxidative or Pd-mediated cyclization procedures as described above, and each cyclization may be effected in the same, similar or different manner.
- the two cyclizations may be performed sequentially, in any order, and may optionally employ different reagents and conditions, for example as described above.
- the mono-cyclized product may be isolated before being treated under suitable sonditions to perform the second intramolecular cyclization.
- the "double cyclization" may be effected in "one-pot", preferably under a single set of reaction conditions.
- a compound of Formula (la), preferably (lb), is made to undergo a "double cyclization" to form a compound of Formula (Ila), preferably (Hb), under Pd[0]-catalysed conditions.
- both cyclizations are effected in "one-pot" under a single set of reaction conditions.
- the compounds of Formula (I), (la) and (lb) may be prepared, starting from a pyrrole core, by standard procedures known to the skilled addressee for effecting substitution of the carbon atoms of the pyrrole core, for example by electrophilic aromatic substitution or halogenating the pyrrole nucleus and effecting a substitution by Stille, Suzuki, or Negishi cross-coupling reactions with stannane, boronic acid or zinc compounds such as aryl- stannanes, aryl boronic acid and aryl zinc compounds. Substitution of the N-atom can be effected by standard procedures.
- the optional double bond is present, as in the compounds of Formula (II) which contain moiety of Formula (I), such as compounds of Formula (lib), this may be introduced either by dehydrogenation of the cyclized product, or alternatively, by incorporation of the corresponding double bond into a precursor thereof. Suitable methods therefor will be known to the skilled addressee (see for example, Advanced Organic Chemistry, Reactions, Mechanisms , and Structure by Jerry March, Third Edition, Wiley Interscience).
- One such suitable method comprises treating the cyclized compound of Formula (lib), with DDQ (2,3-Dichloro-5,6-dicyano-l,4-benzoqionone).
- Lamellarin T diisopropylether (Compound 37 in Table 2) can be converted into Lamellarin W diisopropylether (Compound 11 in Table 1) by treatment with DDQ in dry chloroform at 60-65C (see Example 11 in WO98/50365)
- Lamellarin class compounds as having inhibitory and/or cytotoxic activity against multidrug resistant-type tumours.
- yet another aspect of the present invention contemplates a method of treatment comprising the administration of a treatment effective amount of a compound of general Formula (II), as prepared by the methods described herein, as an active ingredient, to an animal, including a human, in need thereof.
- the term "effective amount" relates to an amount of compound which, when administered according to a desired dosing regimen, provides the desired therapeutic activity.
- the dose will depend on the age, weight and condition of the subject and it is within the skill of the attending physician to determine suitable doasages. Dosing may occur at intervals of minutes, hours, days, weeks, months or years or continuously over any one of these periods. Suitable dosages lie within the range of about 0.1 ng per kg of body weight to 1 g per kg of body weight per dosage. Preferably, the dosage is in the range of 1 ⁇ g to 1 g per kg of body weight per dosage. More preferably, the dosage is in the range of 1 mg to 1 g per dosage per kg of body weight. Suitably, dosages are in the range of about I mg to 500 mg per kg of body weight, such as between 1 mg and 250 mg or 1 mg and 100 mg .
- the method of treatment relates to treating multidrug resistant tumors.
- the method of treatment contemplates improving the antitumor chemotherapeutic effect of multidrug resistant affected drugs.
- the method of treatment is a method for inducing apoptosis. More preferably, the method of treatment is a method of inducing apoptosis on a multidrug resistant cell
- the method of treatment contemplates modulating immunological functions.
- the active ingredient may be administered in a single dose or a series of doses. While it is possible for the active ingredient to be administered alone, it is preferable to present it as a composition, preferably as a pharmaceutical composition.
- compositions comprising a compound of general Formula (13), as prepared according to the present invention, together with a pharmaceutically acceptable carrier, excipient or diluent.
- compositions include those suitable for oral, rectal, nasal, topical (including buccal and sublingual), vaginal or parental (including subcutaneous, intramuscular, intravenous and intradermal) a(lministration.
- the compositions may conveniently be presented in unit dosage form and may be prepared by any methods well known in the art of pharmacy. Such methods include the step of bringing into association the active ingredient with the carrier which constitutes one or more accessory ingredients. In general, the compositions are prepared by uniformly and intimately bringing into association the active ingredient with liquid carriers or finely divided solid carriers or both, and then if necessary shaping the product.
- compositions of the present invention suitable for oral administration may be presented as discrete units such as capsules, sachets or tablets each containing a predetermined amount of the active ingredient; as a powder or granules; as a solution or a suspension in an aqueous or non-aqueous liquid; or as an oil-in- water liquid emulsion or a water-in-oil liquid emulsion.
- the active ingredient may also be presented as a bolus, electuary or paste.
- a tablet may be made by compression or moulding, optionally with one or more accessory ingredients.
- Compressed tablets may be prepared by compressing in a suitable machine the active ingredient in a free-flowing form such as a powder or granules, optionally mixed with a binder (e.g inert diluent, preservative disintegrant (e.g. sodium starch glycolate, cross-linked poly vinyl pyrrolidone, cross-linked sodium carboxymethyl cellulose) surface-active or dispersing agent.
- a binder e.g inert diluent, preservative disintegrant (e.g. sodium starch glycolate, cross-linked poly vinyl pyrrolidone, cross-linked sodium carboxymethyl cellulose) surface-active or dispersing agent.
- Moulded tablets may be made by moulding in a suitable machine a mixture of the powdered compound moistened with an inert liquid diluent.
- the tablets may optionally be coated or scored and may be formulated so as to provide slow or controlled release of the active ingredient therein using, for example, hydroxypropylmethyl cellulose in varying proportions to provide the desired release profile. Tablets may optionally be provided with an enteric coating, to provide release in parts of the gut other than the stomach.
- compositions suitable for topical administration in the mouth include lozenges comprising the active ingredient in a flavoured base, usually sucrose and acacia or tragacanth gum; pastilles comprising the active ingredient in an inert basis such as gelatin and glycerin, or sucrose and acacia gum; and mouthwashes comprising the active ingredient in a suitable liquid carrier.
- compositions for rectal administration may be presented as a suppository with a suitable base comprising, for example, cocoa butter.
- compositions 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.
- compositions suitable for parenteral administration include aqueous and non-aqueous isotonic sterile injection solutions which may contain anti-oxidants, buffers, bactericides and solutes which render the composition isotonic with the blood of the intended recipient; and aqueous and non-aqueous sterile suspensions which may include suspending agents and thickening agents.
- the compositions may be presented in unit-dose or multi-dose sealed containers, for example, ampoules and vials, and may be stored in a freeze-dried (lyophilised) condition requiring only the addition of the sterile liquid carrier, for example water for injections, immediately prior to use.
- Extemporaneous injection solutions and suspensions may be prepared from sterile powders, granules and tablets of the kind previously described.
- Preferred unit dosage compositions are those containing a daily dose or unit, daily sub- dose, as herein above described, or an appropriate fraction thereof, of the active ingredient.
- compositions of this invention may include other agents conventional in the art having regard to the type of composition in question, for example, those suitable for oral administration may include such further agents as binders, sweeteners, thickeners, flavouring agents disintegrating agents, coating agents, preservatives, lubricants and/or time delay agents.
- suitable sweeteners include sucrose, lactose, glucose, aspartame or saccharine.
- Suitable disintegrating agents include corn starch, methylcellulose, polyvinylpyrrolidone, xanthan gum, bentonite, alginic acid or agar.
- Suitable flavouring agents include peppermint oil, oil of wintergreen, cherry, orange or raspberry flavouring.
- Suitable coating agents include polymers or copolymers of acrylic acid and/or methacrylic acid and/or their esters, waxes, fatty alcohols, zein, shellac or gluten.
- Suitable preservatives include sodium benzoate, vitamin E, alpha-tocopherol, ascorbic acid, methyl W _,.
- Suitable lubricants include magnesium stearate, stearic acid, sodium oleate, sodium chloride or talc.
- Suitable time delay agents include glyceryl monostearate or glyceryl distearate.
- the present invention also provides the use of a compound of general Formula (II), as prepared according to the present invention, in the manufacture of a medicament for treatment of an animal or human in need thereof.
- Another aspect of the invention contemplates an agent for the treatment of an animal or human in need thereof comprising a compound of general Formula (U), as prepared according to the present invention.
- the agent is for treating multidrug resistant tumors.
- the agent is for inducing apoptosis on a multi-drug resistant cell.
- the agent is for improving the anti-tumour chemotherapeutic effect of multidrug resistant affected drugs.
- a further embodiment is an agent for modulating immunological functions.
- 2-(Trichloroacetyl)pyrrole was prepared from pyrrole (12.5 g, 186 mmol) and trichloroacetyl chloride (36.5 g, 200 mmol) according to the method of Bailey et al, Org.Synth., 1971, 100.
- the title compound was prepared from 2-(trichloroacetyl)pyrrole according to the method of Belanger, Tetrahedron Lett., 1979, 2505.
- iodine (12.0 g, 47.2 mmol) was added portionwise (approximately 1 g per portion) over 0.17 h to a magnetically stirred mixture of silver trifiuoroacetate (11.0 g, 49.8 mmol) and 2-(trichloroacetyl)pyrrole (10.0 g, 47.1 mmol) in dry chloroform (70 ml) maintained at 0 °C (ice-bath). After addition was complete the reaction mixture was allowed to warm to 18 °C and stirred at this temperature for a further 2 h.
- the resultant suspension was filtered through a sintered glass funnel (No. 3 porosity) and the filtrate washed with Na ⁇ Og (1 x 80 ml of 5% w/v aqueous solution) and water (2 x 80 ml) then dried (MgSO 4 ), filtered and concentrated under reduced pressure.
- the solid residue thus obtained was treated with hexane/ether (50 ml of a 4: 1 v/v mixture) and the resulting suspension stirred at 18 °C for 5 h then the solid was filtered off to give the title compound (13.1 g, 82%) as a cream solid, m.p. 129-130 °C (lit. m.p. 128-130 °C). 1H n.m.r.
- Oxalyl chloride (203 mL, 2.32 mmol) was added to a magnetically stirred suspension of 4- iodopyrrole-2-carboxylic acid (8) (500 mg, 2.11 mmol) in dry CH 2 C1 2 (15.0 ml) containing dmf (1 drop). After stirring the resulting solution at 18 °C for 2 h it was added to a magnetically stirred solution of ⁇ -bromophenol (363 mg, 2.11 mmol), triemylamine (660 ml, 4.73 mmol) and 4-(N,N-dimemylamino)pyridine (dmap, several crystals) in CH 2 C1 2 (10 ml).
- Phenylzinc chloride prepared by the addition of anhydrous zinc chloride (540 mg, 3.96 mmol) to a solution of phenyllithium (2.0 ml of a 1.8 M solution in cyclohexane/ether, 3.6 mmol) in thf (4.0 ml)] was added dropwise, over 2 min., to a magnetically stirred solution of compound (14) (1.75 g, 3.04 mmol) and Pd(PPh 3 ) 2 Cl 2 (106 mg, 0.152 mmol) in dmf (15 ml).
- Pd(OAc) 2 (197 mg, 0.88 mmol) was added to a solution of compound (4) (230 mg, 0.438 mmol), NaOAc (80 mg, 0.975 mmol) and PPh 3 (460 mg, 1.75 mmol) in dmf (20 ml).
- the solution was evacuated (1.0 mmHg) and back-filled with N 2 (gas) three times to remove dissolved oxygen and then heated under nitrogen at 110 °C for 19 h.
- the cooled reaction mixture was diluted with ethyl acetate (25 ml) then washed with brine (2 x 20 ml) and water (1 x 20 ml).
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- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Animal Behavior & Ethology (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pyrrole Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002334322A CA2334322A1 (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
HU0102784A HUP0102784A3 (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues and pharmaceutical compositions containing them and their use |
JP2000555902A JP2002518503A (en) | 1998-06-25 | 1999-06-25 | Synthesis of various lamellar compounds and analogs |
EP99928889A EP1090008A4 (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
BR9911559-0A BR9911559A (en) | 1998-06-25 | 1999-06-25 | Process for the preparation of a compound, compound, process for treating tumors resistant to multiple medications, use of a compound, and, agent and composition for treating tumors resistant to multiple medications. |
AU45907/99A AU755919C (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
US09/720,320 US6469171B1 (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
NZ508652A NZ508652A (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
PL345099A PL200164B1 (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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AUPP4333A AUPP433398A0 (en) | 1998-06-25 | 1998-06-25 | Compounds and processes |
AUPP4333 | 1998-06-25 |
Publications (2)
Publication Number | Publication Date |
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WO1999067250A1 true WO1999067250A1 (en) | 1999-12-29 |
WO1999067250A8 WO1999067250A8 (en) | 2001-06-14 |
Family
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Application Number | Title | Priority Date | Filing Date |
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PCT/AU1999/000516 WO1999067250A1 (en) | 1998-06-25 | 1999-06-25 | Syntheses of a variety of lamellarin compounds and analogues |
Country Status (13)
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US (1) | US6469171B1 (en) |
EP (1) | EP1090008A4 (en) |
JP (1) | JP2002518503A (en) |
KR (1) | KR100711996B1 (en) |
CN (1) | CN1132836C (en) |
AU (1) | AUPP433398A0 (en) |
BR (1) | BR9911559A (en) |
CA (1) | CA2334322A1 (en) |
HU (1) | HUP0102784A3 (en) |
NZ (1) | NZ508652A (en) |
PL (1) | PL200164B1 (en) |
RU (1) | RU2250209C2 (en) |
WO (1) | WO1999067250A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6469171B1 (en) | 1998-06-25 | 2002-10-22 | The Australian National University | Syntheses of a variety of lamellarin compounds and analogues |
EP1263723A1 (en) * | 2000-03-01 | 2002-12-11 | The Scripps Research Institute | Ningalin b analogs employable for reversing multidrug resistance |
WO2004014917A2 (en) * | 2002-08-13 | 2004-02-19 | Pharma Mar, S.A.U. | Antitumoral analogs of lamellarins |
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JP2008535778A (en) * | 2005-01-07 | 2008-09-04 | コンビマトリックス・コーポレイション | Method for electrochemically performing isolated Pd (0) catalytic reaction with an electrode array device |
UY30892A1 (en) | 2007-02-07 | 2008-09-02 | Smithkline Beckman Corp | AKT ACTIVITY INHIBITORS |
PE20120003A1 (en) * | 2009-01-30 | 2012-02-12 | Glaxosmithkline Llc | N - {(1S) -2-AMINO-1 - [(3-FLUOROPHENYL) METHYL) ETHYL HYDROCHLORIDE} -5-CHLORO-4- (4-CHLORO-1-METHYL-1H-PIRAZOL-5-IL) - CRYSTALLINE 2-THIOPHENOCARBOXAMIDE |
BR112012018631A8 (en) | 2010-01-28 | 2017-12-19 | President And Fellows Of Harvard Colege | compositions and methods for enhancing proteasome activity |
EP2707101B1 (en) | 2011-05-12 | 2019-02-13 | Proteostasis Therapeutics, Inc. | Proteostasis regulators |
WO2014116228A1 (en) | 2013-01-25 | 2014-07-31 | President And Fellows Of Harvard College | Usp14 inhibitors for treating or preventing viral infections |
WO2015073528A1 (en) | 2013-11-12 | 2015-05-21 | Proteostasis Therapeutics, Inc. | Proteasome activity enhancing compounds |
CN108059634B (en) * | 2016-11-08 | 2019-05-07 | 华中师范大学 | The preparation method of piece spiral shell chlorins compound and its intermediate |
CN110483510A (en) * | 2019-09-05 | 2019-11-22 | 南京信息工程大学 | A kind of preparation method of piece spiral shell element analog derivative |
CN112300232B (en) * | 2020-11-03 | 2021-11-09 | 浙江大学 | Lamelarin D glycosylated derivative and preparation and application thereof |
CN112225745B (en) * | 2020-11-16 | 2021-10-12 | 烟台大学 | Isopilasin compound with anti-tumor activity, preparation method and application |
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- 1999-06-25 NZ NZ508652A patent/NZ508652A/en not_active IP Right Cessation
- 1999-06-25 WO PCT/AU1999/000516 patent/WO1999067250A1/en active IP Right Grant
- 1999-06-25 BR BR9911559-0A patent/BR9911559A/en not_active Application Discontinuation
- 1999-06-25 EP EP99928889A patent/EP1090008A4/en not_active Withdrawn
- 1999-06-25 CA CA002334322A patent/CA2334322A1/en not_active Abandoned
- 1999-06-25 JP JP2000555902A patent/JP2002518503A/en active Pending
- 1999-06-25 CN CN998078670A patent/CN1132836C/en not_active Expired - Fee Related
- 1999-06-25 KR KR1020007014636A patent/KR100711996B1/en not_active IP Right Cessation
- 1999-06-25 US US09/720,320 patent/US6469171B1/en not_active Expired - Fee Related
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6469171B1 (en) | 1998-06-25 | 2002-10-22 | The Australian National University | Syntheses of a variety of lamellarin compounds and analogues |
EP1263723A1 (en) * | 2000-03-01 | 2002-12-11 | The Scripps Research Institute | Ningalin b analogs employable for reversing multidrug resistance |
EP1263723A4 (en) * | 2000-03-01 | 2004-12-29 | Scripps Research Inst | Ningalin b analogs employable for reversing multidrug resistance |
WO2004014917A2 (en) * | 2002-08-13 | 2004-02-19 | Pharma Mar, S.A.U. | Antitumoral analogs of lamellarins |
WO2004014917A3 (en) * | 2002-08-13 | 2004-05-13 | Pharma Mar Sau | Antitumoral analogs of lamellarins |
US7396837B2 (en) | 2002-08-13 | 2008-07-08 | Pharma Mar, S.A.U. | Antitumoral analogs of lamellarins |
EP2138496A1 (en) | 2002-08-13 | 2009-12-30 | Pharma Mar, S.A.U. | Antitumoral analogs of lamellarins |
Also Published As
Publication number | Publication date |
---|---|
AUPP433398A0 (en) | 1998-07-16 |
CA2334322A1 (en) | 1999-12-29 |
HUP0102784A3 (en) | 2003-03-28 |
NZ508652A (en) | 2003-09-26 |
JP2002518503A (en) | 2002-06-25 |
RU2250209C2 (en) | 2005-04-20 |
EP1090008A4 (en) | 2003-01-02 |
WO1999067250A8 (en) | 2001-06-14 |
US6469171B1 (en) | 2002-10-22 |
KR100711996B1 (en) | 2007-05-02 |
EP1090008A1 (en) | 2001-04-11 |
CN1132836C (en) | 2003-12-31 |
HUP0102784A2 (en) | 2001-11-28 |
PL200164B1 (en) | 2008-12-31 |
CN1307580A (en) | 2001-08-08 |
BR9911559A (en) | 2001-03-20 |
PL345099A1 (en) | 2001-12-03 |
KR20010053119A (en) | 2001-06-25 |
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