ITMI960359A1 - Acidi carbossilici geminali e loro esteri preparazioni farmaceutiche che li contengono utili nel trattamento del dismetabolismo osseo - Google Patents
Acidi carbossilici geminali e loro esteri preparazioni farmaceutiche che li contengono utili nel trattamento del dismetabolismo osseo Download PDFInfo
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- ITMI960359A1 ITMI960359A1 IT96MI000359A ITMI960359A ITMI960359A1 IT MI960359 A1 ITMI960359 A1 IT MI960359A1 IT 96MI000359 A IT96MI000359 A IT 96MI000359A IT MI960359 A ITMI960359 A IT MI960359A IT MI960359 A1 ITMI960359 A1 IT MI960359A1
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- Prior art keywords
- ethyl
- boc
- formula
- ethoxycarbonyl
- amino
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- 150000002148 esters Chemical class 0.000 title description 13
- 210000000988 bone and bone Anatomy 0.000 title description 12
- 150000001735 carboxylic acids Chemical group 0.000 title description 5
- 239000000825 pharmaceutical preparation Substances 0.000 title description 2
- -1 alkylammonium cation Chemical class 0.000 claims description 98
- 150000001875 compounds Chemical class 0.000 claims description 43
- 239000001257 hydrogen Substances 0.000 claims description 25
- 229910052739 hydrogen Inorganic materials 0.000 claims description 25
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 22
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims description 15
- 125000000623 heterocyclic group Chemical group 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- 125000004423 acyloxy group Chemical group 0.000 claims description 7
- 229910052794 bromium Inorganic materials 0.000 claims description 7
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 7
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 7
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 150000001768 cations Chemical class 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 6
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 125000003088 (fluoren-9-ylmethoxy)carbonyl group Chemical group 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 5
- 125000004429 atom Chemical group 0.000 claims description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 5
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 5
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 5
- 239000008194 pharmaceutical composition Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 125000001424 substituent group Chemical group 0.000 claims description 4
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 125000001584 benzyloxycarbonyl group Chemical group C(=O)(OCC1=CC=CC=C1)* 0.000 claims description 3
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical group C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 3
- UYWQUFXKFGHYNT-UHFFFAOYSA-N phenylmethyl ester of formic acid Natural products O=COCC1=CC=CC=C1 UYWQUFXKFGHYNT-UHFFFAOYSA-N 0.000 claims description 3
- 125000003356 phenylsulfanyl group Chemical group [*]SC1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 3
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 3
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 2
- HBAQYPYDRFILMT-UHFFFAOYSA-N 8-[3-(1-cyclopropylpyrazol-4-yl)-1H-pyrazolo[4,3-d]pyrimidin-5-yl]-3-methyl-3,8-diazabicyclo[3.2.1]octan-2-one Chemical class C1(CC1)N1N=CC(=C1)C1=NNC2=C1N=C(N=C2)N1C2C(N(CC1CC2)C)=O HBAQYPYDRFILMT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 125000004848 alkoxyethyl group Chemical group 0.000 claims description 2
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 2
- 230000004097 bone metabolism Effects 0.000 claims 1
- 125000004210 cyclohexylmethyl group Chemical group [H]C([H])(*)C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C1([H])[H] 0.000 claims 1
- 229940124597 therapeutic agent Drugs 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 75
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 39
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 30
- 238000000034 method Methods 0.000 description 25
- 239000000243 solution Substances 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 19
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 17
- 239000002904 solvent Substances 0.000 description 17
- 238000003756 stirring Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 12
- 239000002253 acid Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 8
- 239000012074 organic phase Substances 0.000 description 8
- 239000000741 silica gel Substances 0.000 description 8
- 229910002027 silica gel Inorganic materials 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 7
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical compound C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 150000005690 diesters Chemical class 0.000 description 6
- 239000003480 eluent Substances 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
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- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- SDUYPJMYTPDYOJ-UHFFFAOYSA-N 2-diazo-3-ethoxy-3-oxopropanoic acid Chemical compound CCOC(=O)C(=[N+]=[N-])C(O)=O SDUYPJMYTPDYOJ-UHFFFAOYSA-N 0.000 description 4
- 208000006386 Bone Resorption Diseases 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 4
- 239000004472 Lysine Substances 0.000 description 4
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 4
- 239000008346 aqueous phase Substances 0.000 description 4
- 230000024279 bone resorption Effects 0.000 description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 4
- 229910003002 lithium salt Inorganic materials 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 210000002997 osteoclast Anatomy 0.000 description 4
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- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 4
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 4
- 125000005809 3,4,5-trimethoxyphenyl group Chemical group [H]C1=C(OC([H])([H])[H])C(OC([H])([H])[H])=C(OC([H])([H])[H])C([H])=C1* 0.000 description 3
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- 241000699670 Mus sp. Species 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
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- 159000000002 lithium salts Chemical class 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
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- 210000002303 tibia Anatomy 0.000 description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 3
- 229960000281 trometamol Drugs 0.000 description 3
- 210000000689 upper leg Anatomy 0.000 description 3
- ICFDEICYEPOCHR-UHFFFAOYSA-N 2-[1-amino-4-[(2-methylpropan-2-yl)oxy]-4-oxobutyl]-2-(2-ethoxyethoxy)propanedioic acid Chemical compound CCOCCOC(C(O)=O)(C(O)=O)C(N)CCC(=O)OC(C)(C)C ICFDEICYEPOCHR-UHFFFAOYSA-N 0.000 description 2
- ZKIAUPYBGGNNRE-UHFFFAOYSA-N 3-amino-2-ethoxycarbonyl-2-(2-ethoxyethoxy)-6-[(2-methylpropan-2-yl)oxy]-6-oxohexanoic acid Chemical compound CCOCCOC(C(=O)OCC)(C(O)=O)C(N)CCC(=O)OC(C)(C)C ZKIAUPYBGGNNRE-UHFFFAOYSA-N 0.000 description 2
- ISDIXFSMXDQLMN-UHFFFAOYSA-N 3-o-tert-butyl 1-o,1-o-diethyl 2-amino-1-(cyclohexylmethyl)propane-1,1,3-tricarboxylate Chemical compound CC(C)(C)OC(=O)CC(N)C(C(=O)OCC)(C(=O)OCC)CC1CCCCC1 ISDIXFSMXDQLMN-UHFFFAOYSA-N 0.000 description 2
- CYRUYAVLLCYDDP-UHFFFAOYSA-N 4-o-tert-butyl 1-o,1-o-diethyl 1-(cyclohexylmethyl)-2-(propan-2-ylamino)butane-1,1,4-tricarboxylate Chemical compound CC(C)(C)OC(=O)CCC(NC(C)C)C(C(=O)OCC)(C(=O)OCC)CC1CCCCC1 CYRUYAVLLCYDDP-UHFFFAOYSA-N 0.000 description 2
- HDMIZDMUHSWGLI-UHFFFAOYSA-N 4-o-tert-butyl 1-o,1-o-diethyl 2-amino-1-(cyclohexylmethyl)butane-1,1,4-tricarboxylate Chemical compound CC(C)(C)OC(=O)CCC(N)C(C(=O)OCC)(C(=O)OCC)CC1CCCCC1 HDMIZDMUHSWGLI-UHFFFAOYSA-N 0.000 description 2
- FBOACARWSNHAIU-UHFFFAOYSA-N 4-o-tert-butyl 1-o,1-o-diethyl 2-amino-1-[1-[(2-methylpropan-2-yl)oxycarbonyl]piperidin-4-yl]oxybutane-1,1,4-tricarboxylate Chemical compound CC(C)(C)OC(=O)CCC(N)C(C(=O)OCC)(C(=O)OCC)OC1CCN(C(=O)OC(C)(C)C)CC1 FBOACARWSNHAIU-UHFFFAOYSA-N 0.000 description 2
- YYROPELSRYBVMQ-UHFFFAOYSA-N 4-toluenesulfonyl chloride Chemical compound CC1=CC=C(S(Cl)(=O)=O)C=C1 YYROPELSRYBVMQ-UHFFFAOYSA-N 0.000 description 2
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
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- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
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- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
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- 238000005804 alkylation reaction Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- GMEGXJPUFRVCPX-UHFFFAOYSA-N butylthiourea Chemical compound CCCCNC(N)=S GMEGXJPUFRVCPX-UHFFFAOYSA-N 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
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- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 2
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- AMTPLKILEHMXAF-UHFFFAOYSA-N diethyl 2-(cyclohexylmethyl)-2-(pyridin-3-ylmethyl)propanedioate Chemical compound C=1C=CN=CC=1CC(C(=O)OCC)(C(=O)OCC)CC1CCCCC1 AMTPLKILEHMXAF-UHFFFAOYSA-N 0.000 description 2
- JWNYHYKPXBZFNN-UHFFFAOYSA-N diethyl 2-(cyclohexylmethyl)-2-[3-(propan-2-ylamino)propyl]propanedioate Chemical compound CC(C)NCCCC(C(=O)OCC)(C(=O)OCC)CC1CCCCC1 JWNYHYKPXBZFNN-UHFFFAOYSA-N 0.000 description 2
- WYEHGLSPWYCMOF-UHFFFAOYSA-N diethyl 2-(cyclohexylmethyl)propanedioate Chemical compound CCOC(=O)C(C(=O)OCC)CC1CCCCC1 WYEHGLSPWYCMOF-UHFFFAOYSA-N 0.000 description 2
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- IQDGSYLLQPDQDV-UHFFFAOYSA-N dimethylazanium;chloride Chemical compound Cl.CNC IQDGSYLLQPDQDV-UHFFFAOYSA-N 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
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- 238000004090 dissolution Methods 0.000 description 2
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- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
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- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 description 2
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
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- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- JQZFTTNXRQSVDT-UHFFFAOYSA-N tert-butyl 2-amino-4-bromobutanoate Chemical compound CC(C)(C)OC(=O)C(N)CCBr JQZFTTNXRQSVDT-UHFFFAOYSA-N 0.000 description 2
- HJUGFYREWKUQJT-UHFFFAOYSA-N tetrabromomethane Chemical compound BrC(Br)(Br)Br HJUGFYREWKUQJT-UHFFFAOYSA-N 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 150000003573 thiols Chemical class 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
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- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 2
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- WSQSRNICRBLIJB-UHFFFAOYSA-N tert-butyl 4-bromo-2-(propan-2-ylamino)butanoate Chemical compound CC(C)NC(CCBr)C(=O)OC(C)(C)C WSQSRNICRBLIJB-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- 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
- C07D239/06—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D239/08—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms directly attached in position 2
- C07D239/10—Oxygen or sulfur atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
- A61P19/08—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease
- A61P19/10—Drugs for skeletal disorders for bone diseases, e.g. rachitism, Paget's disease for osteoporosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C335/00—Thioureas, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C335/30—Isothioureas
- C07C335/32—Isothioureas having sulfur atoms of isothiourea groups bound to acyclic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
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Abstract
L'invenzione si riferisce ad una barra di guida, in particolare ad un tendicatena per un comando dell'albero a camme di un motore endotermico, con un corpo di base (12) e con un corpo (14) a rivestimento di scorrimento sostenuto dal corpo di base (12) per la guida di una catena.Si prevede che il corpo di base (12) afferri ad accoppiamento di forma su almeno tre lati il corpo (14) a rivestimento di scorrimento.(Fig. 1).
Description
"ACIDI CARBOSSILICI GEMINALI E LORO ESTERI; PREPARAZIONI FARMACEUTICHE CHE LI CONTENGONO UTILI NEL TRATTAMENTO DEL DISMETABOLISMO OSSEO"
La presente invenzione riguarda acidi carbossilici geminali e loro esteri di formula (I):
(I) nella quale:
Ra ed Rjj sono, indipendentenvente fra loro, idrogeno, un catione di un metallo alcalino o alcalino-terroso, un catione d*ammonio o di C^-C^Q alchilammonio, C^-C^ alchile, C^-C^g alcossietile, allile,p-metossibenzile,ammino-C2-C4 alchile;
$ è un gruppo di formula -(Y)g-(CH2)r in cui Y è CH2,00 s;
B è un gruppo 2-propile; terz-butile; un fenile opzionalmente mono-, bio tri-sostituito da un sostituente scelto nel gruppo di idrossi, C1-C4 alcossi, C^-C4-alchiltio, acilossi, cloro, terz-butile, trifluorometile, isobutile; α-, β-, ^ -piridile; C3-C7-cicloalchile; a- o βnaftile; 6-idrossi- o 6-C^-C4-alcossi-p-naftile; m-benzoilfenile; 3,5-dimetilisossazol-4-ile; tien-2-ile; 1,3-ditian-2-ile o l,3-ditian-5-ile; l,3-dioxan-5-ile; pirimidin-2-ile; triazin-2-ile; -(CH2)2-(0C3i2-CH2)tH; -(CH2)2-{OCH2—CH2)t“OH; un eterociclo di formula (II):
(II) in cui, —Z< è un gruppo H-C< o -(CHZ)2<-N<>'mentre X è un legame semplice (fra 2 atomi di carbonio), CH2, 0, S, o ΝΚζ.dove Rc è idrogeno, C3-C4-alchile, C^-Cg-acile, terz-butossicarbonile (BOC), 9-fluorenilmetossicarbonile (FMOC), benzilossicarbonile, p-metossibenzilossicarbonile, fenile,benzile,benzidrile;
R è scelto nel gruppo di:
- β-piridile; fur-2-ile; 5-dimetilamminometil-fur-2-ile;
- fenile; fenossi o feniltio, essendo fenile come sopra definito;
- idrossi,cloro, bromo, iodio, (preferibilmente bromo), C^-C^ acilossi, solfonato o un gruppo di formula -S-C(=NRd)-NHRe in cui Rd e Re indipendentemente fra loro, sono idrogeno, Ci-C4-alchile, C3-C7 cicloalchile,benzile;
4,5-diidro-imidazol-2-il-2-tio; 3,4,5,6-tetraidro-pirimidin-2-il-2-tio;
- un gruppo di formula (III):
in cui:
- quando R1 è idrogeno ed R2 è idrogeno, C^-C^-alchile, C3-C7 cicloalchile o benzile, R3 è idrogeno, Cj_-C4-alchile, terz-butossicarbonile (BOC), 9-fluorenilmetossicarbonile (FMOC), benzilossi, p-metossibenzilossicarbonile,uno dei gruppi di formula RdN=C(YRe)- o S; RdNH-C(=NH), RdNH-C(=N-CN); -C(=CH~N02)-NHCH3, dove R^ e Re sono come sopra definiti e Y è 0 o S;
- quando è 3⁄4 idrogeno, R2 ed R3, considerati assieme con l'atomo di azoto cui sono legati, possono formare un anello eterociclico azotato a 5 o 6-membri di formula ( IV ) :
dove X ed Rc sono come sopra definiti;
- quando R2 è idrogeno, C^-C^-alchìle, R^e R3, considerati insieme con gli atomi di N e di C cui sono legati, possono formare un anello eterociclico azotato saturo da 5 a 7 atomi;
m è zero od un intero da 1 a 3;
n è zero un intero da 1 a 6;
p è l'intero 2 o 3 ma preferibilmente l'intero 2;
q è zero e l'intero 1;
r è zero o un intero da 1 a 3;
t è un intero da 1 a 3;
le forme otticamente attive, cioè gli enantiomeri, i diastereoisomeri e le loro miscele ed i loro sali farmaceuticamente accettabili.
L<1>invenzione anche riguarda un processo per la preparazione dei composti di formula (I) e le composizioni farmaceutiche che li contengono per uso umano e veterinario.
Esempi di gruppi alchilici C1-C4 sono: metile, etile, propile, isopropile, butile, isobutile, terz-butile, preferibilmente metile, etile, terz-butile.
Esempi di ammino-C2-C4-alchile sono dialchilammino-C2~C4-alchili dove il C2~C4-alchile è etile, propile, butile ed il residuo dialchilamminico è dimetile, dietile, piperidin-l-ile e preferibilmente
è dimetilamminoetile.
Esempi di gruppi C^-C4-alcossietile sono: metossietile, etossietile,propossietile, isopropossietile, butossietile, terz-butossietile; preferibilmente etossietile.
Esempi di C-L-C^-alcossifenile sono C^-C^-alcossieteri di fenoli e polifenoli e preferibilmente sono p-metossifenile,p-terz-butossifenile, 3,4,5-trimetossifenile, 4-idrossi-3,5-dimetossifenile, 3-idrossi-4-metossi-fenile, 4-idrossi-3-metossifenile, preferibilmente 3,4,5-trimetossifenile.
Esempi di C^-C^alchiltiofenile sono p-metiltiofenile, p-terz-butiltiofenile e preferibilmente p-metiltiofenile.
Esempi di Ci-Cy-acilossi sono formile, acetile e benzoile.
Esempi di 6-C^-C4-alcossi-p-naftile sono 6-terz-butossi e 6-metossi,preferibilmente 6-metossi-p-naftile.
Esempi di C3-C7-cicloalchile sono ciclopropile, ciclobutile, ciclopentile, cicloesile e cicloeptile, preferibilmente cicloesile o ciclopentile.
Esempi di C^-C^-solfonato sono metansolfonato, benzensolfonato, preferibilmente p-toluensolfonato.
Esempi di grippi alchilici C^-C^ sono: metile, etile, propile, isopropile,bufile, isobutile, terz-butile, n-eptile, 3,3-dimetil-but-2-ile, 2,2-dimetil-pent-3-ile,preferibilmente 3,3-dimetil-but-2-ile.
Esempi di eterocicli di formula (IV) sono: pirrolidina,piperidina, piperazina, 4-sostituite-piperazine, morfolina, tiomorfolina, azepina, oxazepina, tiazepina,preferibilmente pirrolidina e morfolina.
Esempi preferiti di cationi sono quelli di litio, sodio, potassio, magnesio, calcio, ammonio, trietilammonio, trometamina o quelli di 1-amminoacidi come glieina, lisina, vaiina, leucina, isoleucina, cisteina, metionina ed arginina.
Nei composti di formula (I), il C^-C^alcossifenile è preferibilmente metossifenile, il C^-C7-acilossifenile è preferibilmente formilossifenile o acetossifenile, 3⁄4 è preferibilmente idrogeno, il gruppo -NR2R3 è preferibilmente Ν3⁄4 # metilammino, etilammino, isopropilammino, dimetilammino o dietilammino; oppure R2 e R3 formano un pirrolidin-l-ile, piperidin-l-ile, morfolin-4-ile, tiomorfolin-4-ile, o un grippo piperazin-1-ile-4 eventualmente sostituito come 4-ureido, 4-metil, 4-fenil, 4-benzil, 4-benzidrile.
Quando i grippi carbossilici dei conposti di formula (I) sono indissociati od esterificati ciascuno dei grippi basici eventualmente presenti, cioè i singoli grippi -NR2R3 e ammino-C2~C4 alchile eventualmente presenti, possono essere salificati con acidi non tossici e farmaceuticamente accettabili quali gli acidi acetico,trifluoroacetico, formico, propionico, fumarico, maleico, maionico, benzoico, salicilico, 3,4,5-trimetossi-benzoico, metansolfonico, benzensolfonico, canfosolfonico, lattico, aspartico, glutammico, R- o S- tiazolidin-2-carbossilico, cisteina, N-acetil-cisteina, carbossimetilcisteina; od acidi inorganici come fosforico, solforico,cloridrico e bromidrico.
Fra i conposti di formula I sono preferiti quelli in cui:
1) R <θ R>b <sono C>l<-C>4 alchile, in particolare etile, idrogeno o un catione come sopra definito;
2) R è un gruppo di formula III come sopra definito, 5-dimetilamminofur-2-ile o β-piridile;
3) n è un intero da 2 a 5;
4) Φ è un gruppo di formula -(CH2)^_3 e B è cicloalchile C3-C7, in particolare cicloesile;
5) 5 è un atomo di ossigeno e B è 4-tetraidropiranilossi;
6) Φ è un gruppo di formula -(CH2)χ_2<-0- e B >è C1-C7 acilossi, in particolare 2-etossi;
7) Φ è un atomo di zolfo e B è C3-C7 cicloalchile, in particolare cicloesile;
8) combinazione di due o più dei sostituenti indicati ai punti precedenti.
Esempi specifici dei composti dell'invenzione sono:
etile 4-(5-dimetilamminometil-fur-2-ilmetiltio)-2-cicloesilmetil-2-etossicarboni1-butanoato;
etile 3-(3-piridil)-2-cicloesilmetil-2-etossicarbonil-propanoato; etile 5-BOC-ammino-2-(4-tetraidropiranilossi)-2-etossicarbonil-pentanoato;
etile 5-BOC-ammino-2-[2-(etossi)-etilossi]-2-etossicarboni1-pentanoato; l'acido 5-BOC-ammino-2[(2-etossi)etilossi]-2-carbossi-pentanoico ed il sale di litio;
l'acido 5-BOC-ammino-2-(4-tetraidropiranilossi)-2-carbossi-pentanoico ed i sali di litio, trometamina e di L-lisina;
etile 5-BOC-ammino-2-(3-cicloesil-propil)-2-etossiccirbonil-pentcinoato; etile 4-(pirrolidin-l-il)-2-cicloesimetil-2-etossicarbossi-butanoato; etile 3-(5-dimetilamminometil-fur-2-il)-2-cicloesilmetil-2-etossicarbonil-propanoato:
etile 5-ammino-2-(4-tetraidropiranilossi)-2-etossicarbonil-pentanoato; etile 5-ammino-2-[2-(etossi)-etilossi3-2-etossicarbonil-pentanoato; etile 5-isopropilammino-2-cicloesilmetil-2-etossicarbonil-pentanoato; N-[(4,4-dietossicarbonil),4-tetraidropiranilossi]-butil guanidinio solfato;
N-[(4,4-dietossicarbonil),4-cicloesiltio],N'-etil-cianguanidina;
S-[(4,4-dietossicarbonil),4-(2-(2-etossi)etil)]-butil isotiouronio bromuro.
I composti di formula (I) sono ottenuti attraverso un processo di sostituzione al metino C-H di esteri maionici di formula (V), in cui:
R'a ed R'b possono essere C^-C^alchile, C^-C^-cdcossialchile, allile, p-metossibenzile, Φ è come sopra definito e B' è idrogeno; 2-propile; terz-butile; fenile opzionalmente mono, bi e tri-sostituito da un sostituente scelto nel gruppo di C1-C4 alcossi, C^-C4-alchiltio, <c>l~<c>7 acilossi, cloro, terz-butile, trifluorometile, isobutile; a-, 0-, -piridile; C3-C7-cicloalchile; fur-2-ile; a-, β-naftile; 6-C-±-Cj acilossi- e S-C^H^-alcossi-B-naftile; m-benzoilfenile, 3,5-dimetilisossazol-5-ile; tien-2-ile; 1,3-ditian-2-ile e l,3-ditian-5-ile; 1,3-dioxan-5-ile; pirimidin-2-ile; triazin-2-ile, -(CH2)2-(OCH2-CH2)tH <e >-(CH2)2-(°<CH>2<-CH>2)t<-0-c>l<-c>7 <ac>il<e>-·<1111 >eterociclo di formula (II):
in cui,essendo Z scelto nel gruppo di H-C< ed -{CH2)2-N<,<x >è un legame semplice (fra 2 atomi di carbonio), CH2, 0, S,NR'C dove R'c può essere Ci-C^alchile, C^-Cg-acile, terz-butossicarbonile (BOC), 9-fluorenilmetossicarbonile (FMOC), benzilossicarbonile, pmetossibenzilossi carbonile, fenile,benzile,benzidrile.
Il processo comprende la alchilazione di un composto di formula (V) con un conposto di formula (VI):
(VI) dove, n è come sopra definito, eΨ è scelto fra:
- β-piridile;
- fenile,acilossifenile, fenossi o feniltio come sopra definito;
- idrossi, C-±-Cj acilossi,
- un gruppo di formula (VII):
in cui,m è come sopra definito, e:
- quando è idrogeno ed è idrogeno,C^-C^-alchile, C3-C7 cicloalchile o benzile, R'3 è idrogeno, C^-C^-alchile, terz-butossicarbonile (BOC), 9-fluorenilmetossicarbonile (FMOC), benzilossi o p-metossibenzilossicarbonile,
- quando R<1>1 è idrogeno, R'2 ed R'3 considerati assieme con l'atomo di azoto cui sono legati, possono formare un anello eterociclico azotato a 5 o 6-membri di formula (IV):
(IV)
dove X ed R'c sono come sopra definiti;
- quando R'2 è idrogeno, C^-C^-alchile, R'^ e R^, considerati insieme con gli atomi di N e di C cui sono legati, possono formare un anello eterociclico azotato saturo da 5 a 7 atomi, come sopra definito;
- W è cloro, bromo, iodio o un estere solfonico come mesilato, ptoluensolfonato,benzensolfonato, trifluorometansolfonato
per dare un conposto di formula (la):
in cui R’a, R’b,ψ, Β' e Φ sono come sopra definiti che possono essere eventualmente trasformati in un composto di formula {I), per esempio per mezzo di reazioni di transesterificazione, eliminazione di gruppi protettivi eventualmente presenti, N-alchilazione o acilazione, O-acilazione o O-sostituzione con gruppi tiolici a dare mercaptani e le loro tioureidi lineari o cicliche, salificazione di gruppi amminici e/o carbossilici liberi. Ad esempio, i diesteri dei composti di formula (la), possono essere idrolizzati o trasformati nei loro acidi dicarbossilici geminali per essere ricuperati come sali od acidi liberi o riesterificati con un conveniente alcol RaOH o Η^ΟΗ o miscele di essi. Quando Ψ nei composti di formula (la) è il residuo di un gruppo protettivo di un gruppo amminico primario e/o secondario, dopo rimozione del gruppo protettivo stesso, la risultante ammina potrà essere convertita nella corrispondente ureide, tioureide, isotioureide, guanidina,cianguanidina e loro N'-alchilderivati utilizzando metodi ben noti nella chimica preparativa organica e, più recentemente, descritti ad es. da: C. R. Rasmussen, Synthesis 460, 1988; A. E. Miller et al, ibidem, 777, 1986; C. A.Marianoff e al. J.Org. Chem.,51, 1882, 1986; Org.Synth., 2S, 89, 1948; E. Schmidt et al., Ann, £21, 1, 1959; H. A. Staab, ibidem, £52, 104, 1982; Monatsh. fur Chemie, 22, 41, 1959; K. Ley, Ang. Chem., 2S, 672, 1968; Helv. Chim. Acta, 1716, 1966; J. Org. Chem., 32, 2465, 1965. Analogamente, quandoΨ nei conposti di formula (la) è il residuo di un grippo protettivo di un grippo ossidrilico primario e/o secondario o un gruppo ossidrilico, questo, può essere convertito nel corrispondente estere di un acido solfonico (mesilato, triflato, benzensolfonato, p-toluensolfinato), utilizzando metodi ben noti oppure nell'alogenuro alchilico corrispondente, preferibilmente ioduro o bromuro,che, per reazione con un conveniente tiolo, genererà i composti di formula (la) in cui R è un gruppo -S-C(=NRd)-NHRe, 4,5-diidro-imidazol-2-il-2-tio; 3,4,5,6-tetraidro-pirimidin-2-il-2-tio, (Rd, ed Re come sopra definiti).
L'idrolisi degli esteri degli acidi gem-dicarbossilici dei composti di formula (la) è eseguita preferibilmente con soluzioni acquose di LiOH in un alcol C^-C^, in un intervallo di temperature conpreso fra la temperatura ambiente e -10 "C, in un tempo da poche ore a 48 ore. Solvente preferito è il metanolo e la reazione è eseguita in presenza di almeno due equivalenti molari della base o di un suo lieve eccesso.Gli esteri allilici possono essere rimossi in presenza di Pd-fosfine e di un sale alcalino di un acido alcanoico.La trasformazione di un composto di formula (la) in un conposto di formula (I) nel quale Ra,Rb sono idrossi può essere eseguita, per l'idrolisi dei gruppi esterei prima di rimuovere tutti i gruppi protettivi opzionalmente presenti.
Un composto di formula (I) nel quale Ra, Rb sono idrossi può essere convertito in un'altro conposto di formula (I) in cui Ra ed Rb sono i suoi controioni con un convenzionale processo di salificazione con una base inorganica o organica farmaceuticamente accettabile. Basi organiche particolarmente preferite sono α-amminoacidi basici quali L- lisina, L-arginina e L-N ' -metil-arginina ed amminoalcoli quali trometamina e D-glucammina .
I diesteri degli acidi maionici di formula (V) :
sono conposti commercialmente disponibili o possono essere preparati da prodotti commercialmente disponibili con metodi noti.
Così, esteri di acidi maionici di formula (V) in cui S è un atomo di S possono essere ottenuti per tiolazione di diesteri di alomalonati R'aC^C-fCH-Gj-COjjR'b dove G è Cl, Br, I, preferibilmente Br, con un opportuno mercaptano attivato ad es. (B'-S<- >Na<+>) o per reazione di un maionato attivato, ad es R'a02C-(CH<“ >Na<+>)-C02R'b con un sulfenilalogenuro (B'-S<+ >Ga-) essendo Ga Cl o Br, preferibilmente Br, e Β', R'a ed R'j-,come sopra definito. Indicazioni particolareggiate su questi metodi di sintesi possono essere ritrovate in Brintzinger et al., Chem. Ber., SS, 557, 1953; Mattioda et al.,J.Med. Chem.,1S, 553, 1975, Labushagne et al., Tetrah. Lett., 3571 (1976) relativamente all'uso di sulfenil alogenuri; per l'impiego di alomalonati e tioli in Kaloustian et al, J. Amer.Chem. Soc., 2S, 956, 1976; E. Juaristi et al., J.Org. Chem.,55, 33, 1990; J.Grossert et al.,J.Chem. Soc.Chem.Comm.,2Q, 1183, 1982;
R. Aveta et al., Gazz. Chim. It., 116. 649, 1986 o sulfani in Labuschagne et al., J.Chem. Soc. Perk. Trans. I, 955, 1978 o con alogenoidrati di tioacetimidi esteri in H. Singh et al, Indian J. Chem. Sect. B, 21, 272, 1982 e 24, 131, 1985; o con S-esteri di ptoluentiosolfonici in Hayashi et al., Chem. Pharm. Bull., 19, 1557, 1971.
Ancora più particolarmente, diesteri di acidi maionici di formula (V) in cui Φ è un atomo di 0 sono preparati per reazione di un alcol B'-OH ed un estere dell'acido diazomalonico di formula (Vili):
in presenza di Rh diacetato dimero, (Β', R'a ed R'b come sopra descritti).La tecnica di O-alchilazione si ispira a quella descritta da Paulissen et al., Tetrah. Lett.,2223 (1973) nel caso di α-diazo esteri di acidi carbossilici. Alternativamente, la reazione può essere eseguita in presenza di gel di silice in accordo al procedimento descritto da Ohno et al., Tetrah. Lett., 4005 (1979) senpre in riferimento a a-diazo esteri di acidi carbossilici.
Diesteri di acidi maionici di formula (V)e metodi adatti alla loro preparazione sono, tra l'altro, anche descritti nella domanda di brevetto, a nome della richiedente, WO 94/10127 PCT/EP93/02941 (23.10.1993).
I composti dell'invenzione possono essere usati nel trattamento dell'osteoporosi e di malattie del dismetabolismo osseo, nel trattamento dell'ipercalcemia maligna e della sindrome di Paget.
Le anormalità metaboliche del tessuto osseo sono spesso caratterizzate da una perdita di massa ossea e sono correiabili sia alla incapacità di mineralizzazione della matrice che ad una inadeguata formazione della stessa, situazioni patologiche, anche, note con i nomi di osteomalacia ed osteoporosi, rispettivamente. Il tessuto osseo è un tessuto attivo, continuamente rinnovato, il cui bilancio dipende da un conveniente controllo dei processi di neo-formazione e di degradazione ossea, regolati dall'attività funzionale di osteoblasti ed osteoclasti, cellule che, rispettivamente, presiedono alle funzionalità osteogeniche ed osteolitiche.
Gli osteoclasti sono ritenuti essere i principali responsabili del riassorbimento osseo. Escavazioni ("pits"), conseguenti a processi di riassorbimento osseo sono, ad es., osservate quando culture primarie di osteoclasti di coniglio, ricuperate enzimaticamente, sono cresciute su frammenti ossei bovini, che siano stati devitalizzati. In ragione di ciò, sono di rilevante interesse farmaci che pur mantenendo attiva la funzionalità osteoclastica ne possano inibire 1'iperfunzionalità in tutte le condizioni patologiche di iperreattività osteoclastica, caratterizzate dal prevalere dei processi di riassorbimento osseo su quelli di neo-formazione.
I conposti dell'invenzione,quando saggiati in vitro, in accordo al protocollo descritto da Y: Su et al., Endocrinology, 121, 1497, 1992 in un intervallo scalare di concentrazioni fra 10<-1>^ e 10<-6 >M evidenziano una efficace inibizione della formazione di escavazioni ossee ("pits") senza effetti citotossici sugli osteoclasti stessi.
I composti dell'invenzione sono inoltre efficaci "in vivo", sia dopo somministrazione sottocutanea che orale, nell'inibire il riassorbimento osseo che, usualmente, si osserva in topine dopo ovariectomia. Il protocollo sperimentale utilizzato, salvo minori adattamenti, si ispira a quello descritto da R. Kitazava et al., (J. Clin. Inv., M , 2397, 1994). Per la valutazione finale delle variazioni percentuali della massa ossea di tibia e femore, rispetto ai controlli ovariectomizzati e non trattati, il protocollo sperimentale fa riferimento, con le opportune variazioni, al metodo descritto da E. I. Barengolts et al., (Calcif.Tissue Int.,52, 239,1993).
Esempi tipici dei composti dell'invenzione sono:
A) acido 5-BOC-ammino-2-[2-(etossi)-etossi]-2-carbossi-pentanoico sale di litio;
B) etile 5-BOC-ammino-2-[2-{etossi)-etossi]-2-carbossi-pentanoato;
C) etile 5-BOC-ammino-2-cicloesilmetil-2-carbossi-pentanoato;
D) etile 5-BOC-ammino-2-[4-tetraidropiranil-l-ossi]-2-carbossi-pentanoato;
E) etile 5-BOC-ammino-2-[3-cicloesil-prop-l-il]-2-carbossi-pentanoato;
In una serie di esperimenti i composti sono stati valutati in paragone ad
ALN :alendronato;
F) etile 5-BOC-ammino-2-[2-tetraidropiranil-l-ossi]-2-carbossi-pentanoato;
G) acido 5-BOC-ammino-2-[2-tetraidropiranil-l-ossi]-2-carbossi-pentanoico sale di litio;
assunti come standard positivi. La sintesi dei composti F e G è stata eseguita in accordo al procedimento descritto nella domanda di brevetto W0 94/10127 PCT/EP93/02941 (23.10.1993).
Dopo somministrazione per via sottocutanea, a fronte di decrementi % della massa ossea in topine ovariectomizzate di -1,83 ± 1,53 e di -3,06 1,50 per la tibia ed il femore, rispettivamente, negli animali trattati con i composti ALN, A, F, G, si sono avuti i seguenti risultati:
variazioni %
Dopo somministrazione per via orale, a fronte di decrementi % della massa ossea in topine ovariectomizzate di -0,50 1,74 e di -7,92 1,63 per la tibia ed il femore, rispettivamente,negli animali trattati con i composti ALN,B,C,D, F,era trovato:
variazioni %
L'esame complessivo dei dati sperimentali dimostra come i composti della presente invenzione siano particolarmente idonei per raggiungere gli scopi terapeutici desiderati. Più particolarmente, i composti della presente invenzione risultano efficaci anche dopo somministrazione per via orale,un obbiettivo che all’opposto non è altrettanto efficacemente perseguibile con gli acidi tartronici e loro eteri acetalici.
La somministrazione dei composti dell'invenzione non dà per altro luogo ad effetti negativi sull'accrescimento osseo e la mineraiizzazione.
Per gli usi terapeutici previsti, i composti dell'invenzione sono convenientemente formulati in conposizioni farmaceutiche usando tecniche convenzionali, come ad es. quelle descritte in "Hemington’s Pharmaceutical Sciences Handbook" Mack Publishing Co., New York, USA, 17h Ed., 1985.
Le composizioni farmaceutiche dell<1>invenzione possono essere somministrate per via intramuscolare, intravenosa, per bolus e preferibilmente per via orale, in forma di capsule, tavolette, sciroppo ed opzionalmente come forme a rilascio controllato. Il dosaggio giornaliero varierà in funzione di molti fattori quali la gravità della malattia e delle condizioni del paziente (sesso, peso, età): la dose varierà da 2 a 1200 mg del composto per giorno, opzionalmente in somministrazioni frazionate. Dosaggi più elevati e tempi di somministrazione più prolungati, potranno essere utilizzati a seguito della bassa tossicità dei conposti dell'invenzione.
I seguenti esempi ulteriormente illustrano l'invenzione.
Esempio 1
48 g di p-tosilazide (J. Prakt. Chem., 125. 323, 1930) sono aggiunti in piccole porzioni, sotto agitazione e a temperatura ambiente, ad una soluzione di dietile maionato (40 g) in etanolo ass. (EtOH); al termine dell'aggiunta si continua l'agitazione per 5 min. quindi si gocciola una soluzione di trietilammina (34 mi) in 30 mi di etanolo assoluto e si continua l'agitazione per una notte.A reazione completata (TLC, SÌO2 Esano/AcOEt 8:2), si evapora 1'etanolo e si sospende il residuo in esano/AcOEt 7:3 per separare la p-tosilammide che viene eliminata per filtrazione. Dopo una seconda precipitazione con esano/AcOEt 7:3, si ottengono 40 g di diazomalonato di etile (resa 90%) di sufficiente grado di purezza.
Esempio 2
Una punta di spatola di [Rh(OAc)2]2/ come catalizzatore, è aggiunta ad una soluzione di diazomalonato di etile (20 g) in glicole etilenico monoetiletere (40 mi) che funge da reagente e solvente. Con controllo accurato della reattività della miscela di reazione, e sotto agitazione, si riscalda con gradualità la miscela fino a raggiungere la temperatura di 50 <e>C, e si continua l'agitazione a questa temperatura per 24 h, il tempo necessario per una totale scomparsa del diazoderivato di partenza (TLC, SÌO2 CHCl3/MeOH 98:2). Si evapora l'eccesso di solvente, sotto pressione ridotta, a 40*C; l'alcol residuo viene eliminato per distillazione azeotropica con toluene. Dopo purificazione su colonna di gel di silice, eluente CHCl3/MeOH 98:1, si ottengono 18,2 g di 2-(2-etossietil)ossi-malonato di etile (resa 69%).
<1>HNMR (CDC13,ppm):4,6 (IH, s,0=C-(C3⁄40-)-C=0) ; 4,2 (4H, q,0=C-0-CH2-CH3); 3,75 {2H, t, 0=C-(CH0-CH2-)-C=0, J 5 Hz); 3,6 (2H, t, 0=C-(CH0-<CH>2<-C>^2-)<-c=0>/ J 5 Hz); 3,45 (2H, q, -O-(3⁄4 -£3⁄4 , J 4Hz); 1,25 (6H, t, 0=C-0-CH2-CS3, J 7 Hz); 1,1 (3H,t, -0-CH2-CH3,J 7 HZ).
Esempio 3
Una soluzione di 4-idrossi-tetraidropirano (11,5 g) e di etile diazomalonato (18,7 g) in 30 mi di diclorometano, addizionata di una punta di spatola di [Rh(OAc)2]2, viene riscaldata a riflusso, sotto agitazione, per 24 h fino a totale scomparsa del diazoderivato di partenza.Si concentra a piccolo volume ed il residuo viene percolato su gel di silice, eluente CHCl3/MeOH 98:1, per ottenere 16,4 g di 4-tetraidropiranilossi-malonato di etile 1⁄2NMR {CDCI3, ppm): 4,6 (IH, s, 0=C-(CHO-)-C=0); 4,3 (4H, q, 0=C-0-CH2-CH3); 4,0 -3,9 3,45-3,4 (4H, sistema m, -CH2-0-CH2-); 3,71 (IH,m, >C(-H)-0-); 2,0-1,851,8-1,65 (4H, sistema m,-CH2-C(-0-)-<3⁄4 -); 1,2 (6H, t,0=C-0-CH2-CH3,J 7 Hz).
Utilizzando nella procedura dell'esempio 2 un diverso alcol (come reagente e solvente) o, quando come sopra descritto, detti alcoli e fenoli non possano essere utilmente inpiegati come solventi,per la loro scarsa volatilità o per l'alto costo, per reazione del diazomalonato di etile con 1,1 equi'valenti molari di detti reagenti in presenza di [Rh(OAc)2^2 in un solvente inerte ad es. diclorometano, acetato di etile,diossano, benzene, tetraidrofurano e loro miscele in un rapporto in peso fra reagenti/solventi di almeno 2:1, si sono ottenuti:
fenossimalonato di etile
p-clorofenossimalonato di etile, chimicamente identico ad un campione preparato in accordo a C.A.113: 211579 k;
l-(3-etossi-propil)ossi-malonato di etile;
l-(4,7-dioxa-nonil)ossi-malonato di etile;
l-(3,6-dioxa-octil)-ossi maionato di etile;
1-(5-idrossi-3-oxa-pentil)-ossi-malonato di etile;
cicloesilossimalonato di etile;
cicloesilmetossimalonato di etile;
2-cicloesil-etossimalonato di etile;
3-cicloesil-propossimalonato di etile;
2-ciclopentil-etossimalonato di etile;
3-ciclopentil-propossimalonato di etile;
4-tetraidropiranilmetossi-malonato di etile;
4-tetraidrotiapiranilmetossi-malonato di etile;
2-(tetraidropiran-4-il)-etossi-malonato di etile;
3-(tetraidropiran-4-il)-propossi-malonato di etile;
1,3-dioxan-5-ilossi-malonato di etile;
l-B0C-piperidin-4-ilossi-malonato di etile;
l-BOC-piperidin-4-il-metossi-malonato di etile;
1-isopropil-piperidin-4-il-metossi-malonato di etile;
2-(l-isopropil-piperazin-4-il)-etossi-malonato di etile;
2-(pirrolidin-l-il)-etossi-malonato di etile;
2-(piperidin-l-il)-etossi-malonato di etile;
benzilossimalonato di etile;
piridin-4-il-metossimalonato di etile;
piridin-2-il-metossimalonato di etile;
pirimidin-2-il-metossimalonato di etile;
triazin-2-il-metossimalonato di etile;
piridin-3-il-metossimalonato di etile;
piridin-3-il-etossimalonato di etile;
piridin-4-il-ossimalonato di etile;
piridin-3-il-ossimalonato di etile;
4-(3,5-dimetil-isossazolil)-metossimalonato di etile;
2-(2-tienil)etossimalonato di etile;
2-feniletossi-malonato di etile;
2-(3,4,5-trimetossi-fenil)-etossi malonato di etile;
3-fenil-propossimalonato di etile;
3-(3,4,5-trimetossi-fenil)-propossimalonato di etile;
(lS,,2S)-10-piranilossi-malonato di etile
Esempio 4
Utilizzando i metodi descritti per la preparazione di feniltiomalonato di dietile,benziltiomalonato di dietile,si sono ottenuti: etile cicloesiltiomalonato; etile 4-tetraidropiraniltio-malonato; etile 3-piridilmetil-tio-malonato; etile cicloesilmetiltiomalonato; etile 2cicloesiletiltiomalonato; etile 4-tetradropiranilmetiliomalonato; etile 2-(2-etossietil)-tiomalonato; etile 1-(3-etossi-propil)-tio-malonato. Esempio 5
Sotto agitazione ed in atmosfera di azoto, 18,3 g di 2-(2-etossietil)ossi-malonato di etile (74 mmoli) sono aggiunti ad una soluzione di etilato di sodio in 35 mi di EtOH (preparata per dissoluzione di Na metallico (1,95 g 0,085 moli) in etanolo). Si continua l'agitazione per 1 h a temperatura ambiente,quindi si aggiunge goccia a goccia una soluzione di 3-BOC-ammino-l-propil-bromuro (17,6 g 74 mmoli) in EtOH (30 mi). La miscela di reazione viene riscaldata a 50 "C e mantenuta per una notte a questa temperatura.Già dopo Ih a 50 "C si nota la formazione di un abbondante precipitato di NaBr. Il decorso della reazione può essere seguito per TLC su Si02, eluente CHCl3/MeOH 98:2. A reazione ultimata, si evapora il solvente sotto vuoto ed il residuo è ripartito fra acqua ed AcOEt.La fase acquosa è riestratta con AcOEt (2X50 mi); le fasi organiche riunite sono lavate a neutralità con una soluzione acquosa al 5% di Nal^PO^ ed acqua.,ed infine anidrificate su sodio solfato. Dopo evaporazione del solvente e purificazione del residuo su colonna di gel di silice, eluente CHClg/MeOH 98:1, si ottengono 21 g (51,5 m moli, resa 70%)di:
etile 5-BOC-anunino-2-etossicarbonil-2-[(2-etossi)etilossi]-pentanoato; l-HNMR (CDCI3, ppm): 4,5 (IH, m, -NH-); 4,2 (4H, q, -C02-CH2“, J 7 Hz); 3,7-3,6 (2H, m, -CH2-0-CH<(C=0)2-); 3,6-3,5 (2H, m, -0-CH2-CH2-0-); 3,4 (2H,q, CH3-CH2-0-,J 7 Hz); 3,1-3,0 (2H, m, -NH-CH2-); 2,2-2,0 (2H,dd, -CH2-CH2-C{C=0-)2-0-); 1,4 (9H, s, (CH3)3-C-O-CO-; 1,2 (6H, t,-C02-CH2CH3,J 7 Hz); 1,1 (3H, t, -O-CH2-CIÌ3 , <J 7 >Hz).
Esempio 6
Usando nella procedura descritta nell'esempio 5, uno degli esteri maionici descritti negli esempi 3 e 4, si sono ottenuti:
etile 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidropiranilossi]-pentanoato; <1>HNMR (CDCl3, ppm): 4,55 (IH, m, -NH-); 4,22 (4H, q, -C02-C3⁄4-, J 7 Hz); 4,0-3,8 (IH, m, >C(-H)-0-); 4,0 -3,83,25-3,0 (4H, sistema m, -CH2~ O-CH2-); 3,43 (2H, dt, -NH-CH2",<J>1<7 >H<2>)»<’ >2,02 (2H, <dd>, 2(<0=C>)<>C>(<-0->)-C3⁄4 Ji 10 Hz, J26 Hz); 2,0-1,45 (6H, -(3⁄4 -(3⁄4 (-0-)-CH2- -NH-CH2-CH2-CH2-); 1,4 (9H, s, ((3⁄4 )3-C-O-CO-; 1,3 (6H,t,-002-αί2-(3⁄4 ,J 7 Hz). etile 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidropiranil-metossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidropiranil-etossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidropiranil-propossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonìl-2-[1,3-dioxan-5-ilossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[1-BOC-piperidin-4-ilossi]-pentanoato;
etile 5-BOC-arnmino-2-etossicarbonil-2- [ l-BOC-piperidin-4-il-metossi ] -pentanoato ;
etile 5-BOC-ammino-2-etossicarbonil-2-[1-isopropil-piperidin-4-il-metossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[2-(l-isopropil-piperazin-4-il)-etossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2- [ 2- ( pirrolidin-l-il ) -etossi ] -pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[(piperidin-l-il)-etossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[2-(ciclopentil)-etossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarboni1-2-[n-pentossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-benzilossi-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[piridin-4-il-metossi3-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[piridin-2-il-metossi]-pentanoato; etile 5-BOC—animino—2-etossicarbonil-2-[piridin-3-il-metossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[piridin-3-il-etossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[piridin-4-il-ossi3-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[piridin-3-ilossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[2-feniletossi3-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[2-(3,4,5-trimetossi-fenil)-etossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[3-fenil-propossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[3,4,5-trimetossi-fenil-propossi3-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[(1S,2S)-10-piranilossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[cicloesiltio3-pentanoato; etile 5-BOC-ammino-2-etossicarboni1-2-[4-tetraidropirani1-1io3-pentanoato;
etile 5-BOC-amraino-2-etoss icarbonil-2- [ 3-pir idi lmetil-tio ] -pentanoato ; etile 5-BOC-ammino-2-etossicarbonil-2-[cicloesilmetil-t io] -pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidropiranilmetil-tio]~pentanoato;
etile 5-BOC-ammino-2-etoss icarbonil-2- [ 2- ( 2-etoss iet il ) -t io] -pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[l-( 3-etossi-propil)-tio] -pentanoato .
Esempio 7
Si descrive di seguito il procedimento generale per la saponificazione di ciascuno degli esteri degli esempi 5 e 6; ad una soluzione di 50 mmoli del diestere ad es. 5-BOC-ammino-2-etossicarbonil-2-[{2-etossi)etilossi]-pentanoato (20,2 g) in 25 mi di MeOH sono aggiunti, sotto agitazione, 157 mi di una soluzione 0,63 N di LiOH.H20 in acqua/MeOH (1:1) pari a 100 mmoli di base. Si mantiene sotto agitazione per 18 ore a temperatura ambiente per ottenere il completamento della reazione (TLC, Si02, eluente BuOH/H^/AcOH 3:1:1), quindi si evapora il metanolo sotto vuoto. Dopo liofilizzazione, il residuo solido viene ripetutamente sospeso e triturato, in AcOEt/Et20 per rimuovere tracce di materiale non reagito,quindi è disciolto in acqua e filtrato.
La soluzione acquosa è quindi, liofilizzata per dare 16,82 g del sale di litio dell'acido 5-BOC-ammino-2-carbossi-2-[(2-etossi)etilossi]-pentanoico, come polvere cristallina: ^-HNMR (D2O,ppm): 3,85 (2H, t, -CH2-0-CH2-CH2-, J 5Hz); 3,77 (2H, q, CH3-CH2-O- J 7 Hz); 3,6 (2H, t, -CH2-0-CH2-CH2-, J 5HZ); 2,12 (2H, m, -CH2C(<C02-)2-0-); 1,6 (9H, s, (CH3)3C-O-CO-NH); 1,6-1,5 (2H, m, -NH-CH2-CH2-CH2-); 1,37 (3H, m, CH3CH2-0-).
Esempio 8
Una soluzione acquosa di 5 g del sale di litio dell'acido 5-B0C-ammino-2-carbossi-2-[4-tetraidropiranilossi]-pentanoico [^HNMR (D20, ppm): 4,2-4,053,7-3,5 (4H, m, -CH2-0-CH2-); 3,8 (IH, m, -CH2-CH(-0-)-CH2-); 3,23 (2H, t, -NH-CH2-,J 6Hz); 2,2-1,7 (6H,sist. m,-CH2-CH{-0)-CH2- -CH2C(<C02)-0-); 1,6 (9H, s, (CH3)3C-0-C0-NH); 1,6-1,5 (2H, m, -NH-CH2-CH2<-CH>2<- >viene acidificata a pH 4 - 5 per diluizione sotto agitazione con una soluzione acquosa al 10% di KHSO4. L'acido, che si separa, viene estratto ripetutamente con etere etilico e dalle fasi organiche riunite, lavate con una soluzione acquosa al 2% di KHSO4 ed acqua a neutralità. Per evaporazione del solvente sotto vuoto, si ottengono 4,15 g di acido 5-BOC-ammino-2-carbossi-2-[4-tetraidropiranilossi]-pentanoico. Una soluzione di 3,5 g dell'acido in EtOH viene addizionata di 2,93 di 1-lisina in acqua per ottenere di 5,85 g del sale di 1-lisina dell'acido 5-BOC-ammino-2-carbossi-2-[4-tetraidropiranilossi]-pentanoico.Analogamente, per salificazione estemporanea, si ottiene il sale di trometamina dell'acido 5-BOC-ammino-2-carbossi-2-[4-tetraidropiranilossi]-pentanoico.
Esempio 9
Utilizzando, nel procedimento di C-alchilazione dell'esempio 5, un estere scelto nel grippo di etile 2-m-benzoilfenilmalonato, 6-metossi-0-naftilmalonato, feniltioetilmalonato, 4-tetraidrotiapiranil-metossimalonato, 4-(3,5-dimetil-isossazolil)-metossimalonato, 2-(2-tienil)etossimalonato, e cicloesilpropilmalonato sono ottenuti:
etile 5-BOC-ammino-2-etossicarbonil-2-[m-benzoilfenile]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[6-metossi-f3-naftile]-pentanoato; etile 5-BOC-aramino-2-etossicarbonil-2-[4-(3,5-dimetil-isossazolil)-metossi]-pentanoato;
etile 5-BX-ammino-2-etossicarbonil-2-[2-feniltioetile]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[2-(2-tienil)etossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidrotiapiranilmetossi]-pentanoato;
etile 5-BOC-ammino-2-etossicarbonil-2-[3-cicloesilprolile]-pentanoato: <1>HNMR (CDCI3, ppm): 4,53 {IH, bs NH); 4,18 (4H, q, -C02-CH2-CH3' <J 7 >Hz); 3,11 (2H, m, NH-CH2-); 1/9 - 1/85 (4H, m, -CH2-C(<(C02)2) ); 1,7- 1,61,5-1,3 - 1,3 - 1,1 (17 H sistema conplesso di m -NH-CH2-CH2-
1,45 ( 9H, s, ( CH3 ) 3-OCONH ) ; 1,25 (6H, t, -C02-CH2-CH3 ; J 7 H z) .
Esempio 10
Utilizzando nel procedimento dell'esempio 5, il 3-cicloesil-2-etossicarbonil-propionato di etile ed un opportuno alogenuro, scelto nel gruppo di α-, β-, e ^-piridometil cloruro o bromuro, 2-BOC-amminoetilbromuro, 2-BOC-etilamminoetilbromuro, 3-BOC-amminopropilbromuro , 3-BOC-isopropilamminopropilbromuro, (2S) ( l-BOC-pirrolidinin-2-il )-metil bromuro, (pirrolidin-l-il)-etil bromuro e di furfuril bromuro sono ottenuti :
etile 3-(2-piridil)-2-cicloesilmetil-2-etossicarbonil-propanoato; etile 3-(3-piridil)-2-cicloesilmetil-2-etossicarbonil-propanoato; etile 3-( 4-piridil)-2-cicloesilmetil-2-etossicarbonil-propanoato; etile 4-BOC-ammino-2- ( cicloesilmetil )-2-etossicarbonil-butanoato ; etile 4-BOC-etìlammino-2- ( cicloesilmetil ) -2-etossicarbonil-butanoato ; etile 5-BOC-isopropilammino-2- ( cicloesilmetil ) -2-etossicarbonil-pentanoato;
etile 3—[(S) N-B0C-pirrolidinin-2'-il]-2-cicloesilmetil-2-etossicarbonil-propanoato;
etile 4-{pirrolidinin-1<1>-il)-2-etossicarbonil-butanoato;
etile 5-BOC-ammino-2-(cicloesilmetil)-2-etossicarbonil-pentanoato; etile 3-(fur-2-il)-2-cicloesilmetil-2-etossicarbonil-propanoato che per reazione con formaldeide e di-metilammina cloridrato fornisce il 3-(5-dimetilamminometi1-fur-2-il)-2-cicloesilmetil-2-etossicarboni1-propanoato di etile.
Esempio 11
Una soluzione di 5-BOC-ammino-2-etossicarbonil-2-[4-tetraidropiranilossi]-pentanoato di etile in CH2CI2 (20 mi), raffreddata a 0 - 5" C, viene addizionata di acido trifluoroacetico (5 mi). Dopo una notte a temperatura ambiente, si evapora sotto vuoto per ottenere dopo sgranamento del residuo in etere etilico 3,86 g di 4,4-dietossicarbonil-4-{4-tetraidropiranilossi)-butilammonio trifluoroacetato. Sotto agitazione,una sospensione del sale in AcOEt (25 mi)viene neutralizzata, a 0-5<* >C, per cauta aggiunta di una soluzione acquosa al 5% di sodio bicarbonato. Dopo separazione della fase organica e riestrazione della fase acquosa con AcOEt (3x5 mi), le fasi organiche, riunite, sono anidrificate su Na2S04, e dopo evaporazione del solvente si ottengono 2,73 g di etile 5-ammino-2-etossicarbonil-2-[4-tetraidropiranilossi]-pentanoato .
In maniera analoga, si procede per la rimozione del gruppo protettivo tert-butossicarbonilico, e ciascuno dei BOC-derivato degli esempi 5, 6, 9 e 10 è convertito nella corrispondente ammina. Così ad es. , per reazione con un eccesso molare di acido trifluoroacetico in CH2CI2 dei BOC derivati: etile 5-BOC-ammino-2-etossicarbonil-2-[l-BOC-piperidin-4-ilossi]-pentanoato; etile 5-BOC-ammino-2-etossicarbonil-2-[l-B0C-piperidin-4-il-metossi] -pentanoato; etile 4-BOC-ammino-2- ( cicloesilmetil}-2-etossicarbonil-butanoato; etile 4-B0C-etilammino-2-( cicloesilmetil )-2-etossicarbonil-butanoato; etile 5-BOC-isopropilammino-2-( cicloesilmetil )-2-etossicarbonil-pentanoato;
etile 5-BOC-ammino-2- ( cicloesilmetil )-2-etossicarbonil-pentanoato, si sono ottenute le corrispondenti ammine:
etile 5-ammino-2-etossicarbonil-2- [piperidin-4-ilossi ]-pentanoato ; etile 5-ammino-2-etossicarbonil-2-[piperidin-4-il-metossi] -pentanoato; etile 4-ammino-2-( cicloesilmetil )-2-etossicarbonil-butanoato;
etile 4-etilammino-2- (cicloesilmetil )-2-etossicarbonil-butanoato ; etile 5-isopropilammino-2-( cicloesilmetil )-2-etossicarbonil-pentanoato; etile 5-ammino-2- (cicloesilmetil ) -2-etossicarbonil-pentanoato
Esempio 12
In accordo al metodo generale descritto da C. A. Maryanoff et al., J. Org. Chem., 51, 1882, 1986, a temperatura ambiente, 0,005 mmoli (0,062 g) di acido amminoiminometansolfonico sono aggiunti ad una soluzione di 0,0065 mmoli (2,06 g) di etile 5-ammino-2-etossicarbonil-2
[4-tetraidropiranilossi]-pentanoato in acetonitrile (5 mi) per lasciare separare 3,7 g di N- ( 4 , 4-dietossicarbonil-4-tetraidropiranilossi ) -butil guanidinio solfato.
In maniera analoga, ma utilizzando gli acidi metilamminoiminometansolfonico ed anilinoimino- metansolf onico , si sono ottenuti:
N-metil-N ' - ( 4 , 4-dietossicarbonil-4-tetraidropiranilossi ) -butil guanidinio solfato
N-fenil-N ' - ( 4 , 4-dietossicarbonil-4-tetraidropiranilossi ) -butil guanidinio solfato.
Per reazione con l-metiltio-l-metilammino-2-nitroetene viene ottenuto 1 , l-etenediammina,N- ( 4 , 4-dietossicarbonil-4~tetraidropiranilossi ) -butil ) ,N <1 >-metil-2-nitro .
Esempio 13
Una soluzione di etile 5-ammino-2-etossicarbonil-2-[cicloesilmetiltio]-pentanoato (3,63 g, 1,05 mmoli) e dimetil N-cianoimidoditiocarbonato 2 g, 1,37 mmoli) in isopropanolo (15 mi) sono lasciati a temperatura ambiente per 4h; si diluisce quindi con 30 mi di Et20 e la miscela viene mantenuta per un'ulteriore notte a temperatura ambiente. Si separano 4,01 g di N-[4,4-dietossicarbonil-4-cicloesilmetiltio-butil3-N'-ciano-S-metil-isotiourea.
Il riscaldamento a riflusso di una soluzione di 2 g del composto con una soluzione al 5% di etilammina in EtOH fornisce 1,9 g di:N-[4,4-dietossicarbonil-4-cicloesilmetiltio-butil]-N'-etil-cianguanidina.
Analogamente per reazione con (R,S)-3,3-dimetil-2-butilammina si ottiene (R,S) N-[4,4-dietossicarbonil-4-cicloesilmetiltio-butil]-N'-3,3-dimetil- 31 - Studio Consulenza Brevettuale s.r.l.
Bianchetti Giuseppe ed altri 2-butil-cianguanidina .
Esempio 14
Sotto agitazione ed in atmosfera di azoto, 6 g di 2-(2-etossietil)ossi-malonato di etile (24,65 mitrali) sono aggiunti ad una soluzione di sodio etilato in EtOH (15 mi, preparata per dissoluzione di (0,65 g 0,028 moli) Na metallico). Si continua l'agitazione per 1 h a temperatura ambiente, prima di aggiungere goccia a goccia una soluzione di 3-tritilossi-l-propil-bromuro (9,4 g 24,7 mmoli) in EtOH (20 mi). La miscela di reazione viene riscaldata a 50°C e mantenuta per una notte a questa temperatura. A reazione ultimata, si evapora il solvente sotto vuoto ed il residuo è ripartito fra acqua ed AcOEt. La fase acquosa è riestratta con AcOEt (2x50 mi), le fasi organiche sono riunite, lavate a neutralità con una soluzione acquosa al 5% di Na^PO^ e quindi con acqua, ed infine anidrificate su sodio solfato. Dopo evaporazione del solvente, una soluzione del grezzo 5-tritilossi-2-etossicarbonil-2-[(2-etossi)etilossi]-pentanoato di etile, così ottenuto, in EtOH viene trattata con 0,3 g di acido p-toluensolfonico.3⁄40 e mantenuta per 12 h a temperatura ambiente. Dopo evaporazione del solvente, il residuo viene disciolto in diclorometano (15 mi) e la fase organica viene lavata con 2x5 di 5% acquoso NaHC03 e quindi con acqua a neutralità per ottenere, dopo anidrifreazione su Na2S04, evaporazione del solvente e successiva purificazione su colonna di gel di silice (eluente CHC^/MeOH 98:1,5), 6,42 g di etile 5-idrossi-2-[(2-etossi)etilossi]-2-etossicarbonil-pentanoato.
Una soluzione di 1,77 g del composto in 4 mi di piridina sono fatti reagire con 2,5 g di p-toluensulfonilcloruro per dare 2,3 g di 5-ptoluesulf onilossi-2- [ ( 2-etossi ) etilossi ] -2-etossicarbonil-pentanoato di etile che per reazione con LiBr in acetone fornisce:
etile 5-bromo-2-[ ( 2-etossi ) etilossi] -2-etossicarbonil-pentanoato .
Una soluzione di 1 g di 5-bromo-2-[ ( 2-etossi ) etilossi] -2-etossicarbonilpentanoato di etile in 5 mi di EtOH, addizionata di 0,8 g di tiourea, viene mantenuta a riflusso per 4 ore, al raffreddamento si separa un precipitato cristallino di S- { 4 , 4-dietossicarbonil-4- ( 2 ( 2-etossi) -etossi)-butil isotiouronio bromuro.
Esempio 15
Usando nel procedimento dell'esempio 14, il 2-(l-isopropilpiperidin-4-ilmetossi)-maionato di etile vengono ottenuti:
etile 5-idrossi-2-[2-(l-isopropilpiperidin-4-ilmetossi)]-2-etossicarbonil-pentanoato;
etile 5-bromo-2-[2-(l-isopropilpiperidin-4-ilmetossi)]-2-etossicarbonilpentanoato;
S-(4,4-dietossicarbonil-4-[2-(l-isopropilpiperidin-4-ilmetossi)]-butil isotiouronio bromuro e per reazione con N-butiltiourea, S-(4,4-dietossicarbonil-4-[2-(l-isopropilpiperidin-4-ilmetossi)]-butil,N-butil isotiouronio bromuro.
Esenpio 16
In atmosfera di azoto, ad una soluzione di 0,1 g di tert-butilato di potassio in 6 mi di THF/EtOH 1:2 sono aggiunti 0,1 g di 2-imidazolidintione e 0,41g di 5-bromo-2-[2-(l-isopropilpiperidin-4-ilmetossi)]-2-etossicarbonil-pentanoato di etile.Si riscalda a riflusso per 2h, si evapora e si ripartisce il residuo fra AcOEt ed acqua. Dopo la consueta lavorazione, evaporazione del solvente e successiva purificazione su colonna di gel di silice, si ottengono 0,32 g di etile 5- ( 4 , 5-diidro-imidazol-2-il-2-t io ) -2- [ 2- ( 1-isopropilpiper idin-4-ilmetossi) ]-pentanoato.
Usando come mercaptani: β-piridil-metil-mercaptano e 3,4,5,6-tetraidro-2-pirimidinotiolo, si sono anche ottenuti:
etile 5-(p-piridil-metiltio)-2-[2~( l-isopropilpiperidin-4-ilmetossi) ]-2-etoss icarboni 1-pentanoato ;
etile 5- ( 3 , 4 , 5 , 5-tetraidro-pir imidin-2-il-t io ) -2- [ 2- ( 1-isopropilpiperidin-4-ilmetossi ) ] -2-etossicarbonilpentanoato;
etile 5- ( 4 , 5-diidro-imidazol-2-il-2-tio )-2-[ ( 2-etossi )etilossi]-2-etossicarboni 1-pentanoato ;
etile 5-( 0-piridil-metiltio)-2- [(2-etossi )etilossi]-2-etossicarbonilpentanoato;
etile 5- (3 ,4 ,5 ,5-tetraidro-pirimidin-2-il-tio )-2- [{2-etossi )etilossi ] -2-etossicarbonil-pentanoato .
Esempio 17
Utilizzando nel procedimento dell'esempio 14, il 3-cicloesil-2-etossicarbonil-propionato di etile ed il 2-tritilossietilbromuro viene ottenuto il 4-cicloesil-2 , 2-dietossicarbonil-butan-l-olo e quindi per reazione in diclorometano con tri fenil fosfina e tetrabromometano il 4-cicloesil-2,2-dietossi-l-butilbromuro. Ad una soluzione di 0,1 g di tert-butilato di potassio in 6 mi di THF/EtOH 1:2 sono aggiunti 0,15 g di furfurilmercaptano e 0,38 g di 4-cicloesil-2,2-dietossi-l-butilbramirò. In atmosfera di azoto, si riscalda a riflusso per 4 h, si evapora e si ripartisce il residuo fra AcOEt ed acqua. Dopo la consueta lavorazione, evaporazione del solvente e successiva purificazione su colonna di gel di silice, si ottengono 0,34 g di etile 4-(fur-2-ilmetiltio)-2-etossicarbonil-2-cicloesilmetil-butanoato.
Una soluzione in EtOH (6 mi) di 0,2 g del composto, di dimetilammina cloridrato (0,06 g) e paraformaldeide (0,045 g) è riscaldata a riflusso per 4 ore, si evapora la maggior parte del solvente, si diluisce con acqua (10 mi) e si estrae con AcOEt. Le fasi organiche sono lavate con 1x3 mi di acqua e quindi sono scartate. Le fasi acquose sono allora riunite, rese basiche con potassio bicarbonato e riestratte con AcOEt. Le fasi organiche sono riunite per dare, dopo la consueta lavorazione, purificazione del residuo su colonna di gel di silice 0,18 g di: 4-(5-dimetilamminometil-fur-2-ilmetiltio)-2-etossicarbonil-2-cicloesilmetil-butanoato.
Esempio 18
Utilizzando nel procedimento dell'esempio 1 il maionato di diallile, per reazione del risultante allile diazomalonato con morfoliniletanolo e tiamorfoliniletanolo,si sono ottenuti:
morfoliletossimalonato di allile e tiamorfoliniletossimalonato di allile,che in accordo al procedimento dell'esempio 5 sono fatti reagire rispettivamente con 2-benzilossicarbonilamminoetilbromuro, 4-benzilossicarbonilairaninobutilbromuro, (S) 2-BOC-ammino-propi1 bromuro e (S) 3-fenil-2-BOC-ammino-propil bromuro per ottenere:
allile 4-benzilossicarbonilammino-2-(allilossicarbonil)-2-(moriolinil-4etossi)-butanoato;
allile 4-benzilossicarbonilammino-2-(allilossicarbonil)-2-(morfolinil-4-etossi)-esanoato;
allile (S) 4-terz-butossicarbonilammino-2-(allilossicarbonil)-2-(tiamorfolinil-4-etossi)-pentanoato;
allile (S) 5-fenil-4-terz-butossicarbonilammino-2-{allilossicarbonil)-2-(morfolinil-4-etossi)-pentanoato
e dopo rimozione dei gruppi protettivi Z e BOC si ottengono:
allile 4-ammino-2-(allilossicarbonil)-2-{morfolinil-4-etossi)-butanoato; allile 4-ammino-2-(allilossicarbonil)-2-(morfolinil-4-etossi)-esanoato; allile (S) 4-ammino-2-(allilossicarbonil)-2-(tiamorfolinil-4-etossi)-pentanoato;
allile (S) 5-fenil-4-ammino-2-(allilossicarbonil)-2-(morfolinil-4-etossi)-pentanoato.
Esempio 19
Utilizzando nel procedimento dell<1>esempio 9 il cicloesilpropilmalonato di allile si ottiene:
allile 5-BOC-ammino-2-allilossicarbonil-2-[3-cicloesilprolile]-pentanoato: ^HNMR (CDCI3, ppm): 4,53 (IH, bs NH); 3,11 (2H, m, NH-CH2"); 1/9 -1,85 ( 4H, m, -CH2-C( <(C02)2 )-<3⁄4-) ; <1>'<7_ 1>'<6 >!/<5>"<1>/<3 >~ <1>-<3 ~ >1/1 U<7 H >sistema complesso di m -NH-CH2-CH2-
1,45 (9H, s, (CH3)3-OCONH); 1,25 (6H, t, -C02-CH2-CH3; J 7 Hz) che con esanoato di potassio e trifenilfosfina viene convertito in: 5-B0Cammino-2-carbossi-2-[3-cicloesilprolile]-pentanoato di potassio.
Claims (7)
- RIVENDICAZIONI 1. Composti di formula I (I) nella quale: Ra ed Rjj sono, indipendentemente fra loro, idrogeno, un catione di un metallo alcalino o alcalino-terroso, un catione d'ammonio o di C^-C^g alchilammonio, C1-C4 alchile, 3⁄4-C^g alcossietile, allile,p-metossibenzile, amraino-C2-C4 alchile; Φ è un gruppo di formula -(Y)q-(CH2)r in cui Y è (3⁄4 ,0 o S; B è un gruppo 2-propile; terz-butile; un fenile opzionalmente mono-, bio tri-sostituito da un sostituente scelto nel gruppo di idrossi, C1-C4 alcossi,C^-C4-alchiltio, C^-C-y acilossi, cloro, terz-butile, trifluorometile, isobutile; α-, β-, -piridile; C3-Cγ-cicloalchile; α- o βnaftile; 6-idrossi- o 6-Ci-C4-alcossi-{3-naftile; m-benzoilfenile; 3,5-dimetilisossazol-4-ile; tien-2-ile; 1,3-ditian-2-ile o l,3-ditian-5-ile; l,3-dioxan-5-ile; pirimidin-2-ile; triazin-2-ile; -(CH2)2”(<OCH>2<_CH>2^t<H>' -(CH2)2<_>(<OCH>2<_CH>2)t~°<H >' <1311 >eterociclo di formula (II): (II<)> \ in cui,-Z< è un gruppo H-C< o -{CHZ)2~N<,mentre X è un legame semplice (fra 2 atomi di carbonio), CH2, 0, S, o NR^- dove RQ è idrogeno, 0^-04-alchile, C^-Cg-acile, terz-butossicarbonile (BOC), 9-fluorenilmetossicarboriile (FMOC), benzilossicarbonile, p-metossibenzilossicarbonile, fenile,benzile,benzidrile; R è scelto nel gruppo di: - β-piridile; fur-2-ile; 5— dimetilanuninometil-f ur-2-ile ; - fenile; fenossi o feniltio, essendo fenile come sopra definito; - idrossi, cloro, bromo, iodio, (preferibilmente bromo), acilossi, C1-C7 solfonato o un gruppo di formula -S-C(-NRd)-NHRe in cui Rd e Re indipendentemente fra loro, sono idrogeno, C^-C^-alchile, C3-C7 cicloalchile,benzile; 4,5-diidro-imidazol-2-il-2-tio; 3,4,5,6-tetraidro-pirimidin-2-il-2-tio; - un gruppo di formula (III): (IH) in cui:- quando è idrogeno ed R2 è idrogeno, C^-C7-alchile, C3-C7 cicloalchile o benzile, R3 è idrogeno, C^-C^alchile, terz-butossicarbonile (BOC), 9-fluorenilmetossicarbonile (FMOC), benzilossi, p-metossibenzilossicarbonile, uno dei gruppi di formula RdN=C(YRe)~ o S; RdNH-C(=NH), RdNH-C(=N-CN); -C(=CH-N02)-NHCH3, dove e Re sono come sopra definiti e Y è 0 o S; - quando è R^ idrogeno, R2 ed R3, considerati assieme con l'atomo di azoto cui sono legati, possono formare un anello eterociclico azotato a 5 o 6-membri di formula (IV): (IV) dove X ed Rc sono come sopra definiti; - quando R2 è idrogeno, C^-C^-alchile, R^e R3, considerati insieme con gli atomi di N e di C cui sono legati, possono formare un anello eterociclico azotato saturo da 5 a 7 atomi; m è zero od un intero da 1 a 3; n è zero un intero da 1 a 6; p è l'intero 2 o 3 ma preferibilmente l'intero 2; q è zero e l'intero 1; r è zero o un intero da 1 a 3; t è un intero da 1 a 3; le forme otticamente attive, cioè gli enantiomeri, i diastereoisomi le loro miscele ed i loro sali farmaceuticamente accettabili.
- 2. Composti secondo la rivendicazione 1 in cui Ra e 3⁄4 sono entrambi C^-C^ alchile, idrogeno o un catione alcalino o alcalino-terroso.
- 3. Composti secondo la rivendicazione 1 o 2 in cui R è un gruppo di formula III come definito nella rivendicazione 1, 5-dimetilammino-fur-2-ile o β-piridile.
- 4. Composti secondo una qualunque delle rivendicazioni precedenti in cui Β-Φ- è scelto fra cicloesilmetil, 3-cicloesilpropile, 4-tetraidropiranilossi, 2-etossietilossi,cicloesiltio.
- 5. Conposti delle rivendicazioni 1-4 come agenti terapeutici.
- 6. Uso dei composti delle rivendicazioni 1-5 per la preparazione di medicamenti per il trattamento del dismetabolismo osseo.
- 7. Composizioni farmaceutiche contenenti come principio attivo un coirpsto delle rivendicazioni 1-4, in miscela con un opportuno veicolo.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96MI000359A IT1282693B1 (it) | 1996-02-27 | 1996-02-27 | Acidi carbossilici geminali e loro esteri;preparazioni farmaceutiche che li contengono utili nel trattamento del dismetabolismo osseo |
| EP97102372A EP0792878A3 (en) | 1996-02-27 | 1997-02-14 | Geminal carboxylic acids and esters thereof, pharmaceutical formulations containing them useful in the treatment of bone dysmetabolism |
| US08/806,594 US5908863A (en) | 1996-02-27 | 1997-02-26 | Geminal carboxylic acids and esters thereof pharmaceutical formulations containing them useful in the treatment of bone dysmetabolism |
| JP9057104A JPH10204025A (ja) | 1996-02-27 | 1997-02-26 | 骨異常代謝の治療に有用なジエミナルカルボン酸およびそれらのエステルを含有する医薬製剤 |
| CA002198525A CA2198525A1 (en) | 1996-02-27 | 1997-02-26 | Geminal carboxylic acids and esters thereof, pharmaceutical formulations containing them useful in the treatment of bone dysmetabolism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT96MI000359A IT1282693B1 (it) | 1996-02-27 | 1996-02-27 | Acidi carbossilici geminali e loro esteri;preparazioni farmaceutiche che li contengono utili nel trattamento del dismetabolismo osseo |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITMI960359A0 ITMI960359A0 (it) | 1996-02-27 |
| ITMI960359A1 true ITMI960359A1 (it) | 1997-08-27 |
| IT1282693B1 IT1282693B1 (it) | 1998-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| IT96MI000359A IT1282693B1 (it) | 1996-02-27 | 1996-02-27 | Acidi carbossilici geminali e loro esteri;preparazioni farmaceutiche che li contengono utili nel trattamento del dismetabolismo osseo |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5908863A (it) |
| EP (1) | EP0792878A3 (it) |
| JP (1) | JPH10204025A (it) |
| CA (1) | CA2198525A1 (it) |
| IT (1) | IT1282693B1 (it) |
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| WO2002016313A2 (en) * | 2000-08-18 | 2002-02-28 | Genentech, Inc. | Integrin receptor inhibitors |
| US8987524B2 (en) | 2009-08-10 | 2015-03-24 | Solvay Fluor Gmbh | Process for the manufacture of Sevoflurane |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1538977A (fr) * | 1966-01-10 | 1968-09-13 | Sandoz Sa | Acides et esters bis-aryloxy-maloniques et leur préparation |
| FR1526463A (fr) * | 1966-06-07 | 1968-05-24 | Sandoz Sa | Dérivés de l'acide bis-(p-chloro-phénoxy)-malonique et leur préparation |
| CH514581A (de) * | 1967-02-21 | 1971-10-31 | Sandoz Ag | Verfahren zur Herstellung neuer Essigsäure-Derivate |
| PL122256B1 (en) * | 1979-11-26 | 1982-07-31 | Lodzkie Zaklady Farma | Process for preparing molecular compound of beta-diethylaminoethylamide of p-chlorophenoxyacetic acid with 4-n-butyl-3,5-diketo-1,2-diphenylpyrazolidin |
| US4835164A (en) * | 1987-02-20 | 1989-05-30 | A. H. Robins Company, Incorporated | Aryloxymethyl derivatives of nitrogenous heterocyclic methanols and ethers thereof |
| DK224589A (da) * | 1988-05-09 | 1989-11-10 | Merck & Co Inc | Polymalonsyreforbindelse og farmaceutisk praeparat indeholdende en saadan forbindelse |
| FR2658186B1 (fr) * | 1990-02-09 | 1993-01-29 | Adir | Nouveaux sels de metaux bivalents, leur procede de preparation et les compositions pharmaceutiques qui les contiennent. |
| IT1256300B (it) * | 1992-11-05 | 1995-11-29 | Dompe Farmaceutici Spa | Uso di acidi aril-, eteroaril- e alchiltartronici come agenti terapeutici |
| EP0667850B1 (en) * | 1992-11-05 | 1997-05-28 | Dompe Farmaceutici S.P.A. | Tartronic acids, their acetalic ethers and o-esters |
-
1996
- 1996-02-27 IT IT96MI000359A patent/IT1282693B1/it active IP Right Grant
-
1997
- 1997-02-14 EP EP97102372A patent/EP0792878A3/en not_active Withdrawn
- 1997-02-26 US US08/806,594 patent/US5908863A/en not_active Expired - Fee Related
- 1997-02-26 JP JP9057104A patent/JPH10204025A/ja active Pending
- 1997-02-26 CA CA002198525A patent/CA2198525A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI960359A0 (it) | 1996-02-27 |
| US5908863A (en) | 1999-06-01 |
| CA2198525A1 (en) | 1997-08-27 |
| EP0792878A3 (en) | 1998-03-18 |
| JPH10204025A (ja) | 1998-08-04 |
| IT1282693B1 (it) | 1998-03-31 |
| EP0792878A2 (en) | 1997-09-03 |
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