NO177140B - Analogifremgangsmåte for fremstilling av substituert pyridyl-dihydroksy-heptensyre og salter derav samt mellomprodukt til bruk i fremgangsmåten - Google Patents
Analogifremgangsmåte for fremstilling av substituert pyridyl-dihydroksy-heptensyre og salter derav samt mellomprodukt til bruk i fremgangsmåten Download PDFInfo
- Publication number
- NO177140B NO177140B NO914696A NO914696A NO177140B NO 177140 B NO177140 B NO 177140B NO 914696 A NO914696 A NO 914696A NO 914696 A NO914696 A NO 914696A NO 177140 B NO177140 B NO 177140B
- Authority
- NO
- Norway
- Prior art keywords
- salts
- formula
- alkyl
- dihydroxy
- acid
- Prior art date
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 12
- 238000002360 preparation method Methods 0.000 title claims description 10
- 150000001408 amides Chemical class 0.000 claims abstract description 24
- 150000002148 esters Chemical class 0.000 claims abstract description 18
- 150000001412 amines Chemical class 0.000 claims abstract description 9
- 239000000047 product Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 125000004178 (C1-C4) alkyl group Chemical class 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 238000004587 chromatography analysis Methods 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 239000013067 intermediate product Substances 0.000 claims description 2
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 claims 2
- 239000002253 acid Substances 0.000 abstract description 11
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 3
- 230000000144 pharmacologic effect Effects 0.000 abstract description 3
- 206010003210 Arteriosclerosis Diseases 0.000 abstract description 2
- 208000031226 Hyperlipidaemia Diseases 0.000 abstract description 2
- 208000011775 arteriosclerosis disease Diseases 0.000 abstract description 2
- 229940121710 HMGCoA reductase inhibitor Drugs 0.000 abstract 1
- 239000002471 hydroxymethylglutaryl coenzyme A reductase inhibitor Substances 0.000 abstract 1
- 229940096701 plain lipid modifying drug hmg coa reductase inhibitors Drugs 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 17
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 14
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- 150000001875 compounds Chemical class 0.000 description 11
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- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 102000004190 Enzymes Human genes 0.000 description 5
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- ULGZDMOVFRHVEP-RWJQBGPGSA-N Erythromycin Chemical compound O([C@@H]1[C@@H](C)C(=O)O[C@@H]([C@@]([C@H](O)[C@@H](C)C(=O)[C@H](C)C[C@@](C)(O)[C@H](O[C@H]2[C@@H]([C@H](C[C@@H](C)O2)N(C)C)O)[C@H]1C)(C)O)CC)[C@H]1C[C@@](C)(OC)[C@@H](O)[C@H](C)O1 ULGZDMOVFRHVEP-RWJQBGPGSA-N 0.000 description 5
- 239000002585 base Substances 0.000 description 5
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- 102100029077 3-hydroxy-3-methylglutaryl-coenzyme A reductase Human genes 0.000 description 4
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- 239000003960 organic solvent Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
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- 241000282472 Canis lupus familiaris Species 0.000 description 3
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- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000037396 body weight Effects 0.000 description 3
- 235000012000 cholesterol Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 150000007529 inorganic bases Chemical class 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
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- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 229920001268 Cholestyramine Polymers 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- PCZOHLXUXFIOCF-UHFFFAOYSA-N Monacolin X Natural products C12C(OC(=O)C(C)CC)CC(C)C=C2C=CC(C)C1CCC1CC(O)CC(=O)O1 PCZOHLXUXFIOCF-UHFFFAOYSA-N 0.000 description 2
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- 150000003863 ammonium salts Chemical class 0.000 description 2
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- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 235000019439 ethyl acetate Nutrition 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- PCZOHLXUXFIOCF-BXMDZJJMSA-N lovastatin Chemical compound C([C@H]1[C@@H](C)C=CC2=C[C@H](C)C[C@@H]([C@H]12)OC(=O)[C@@H](C)CC)C[C@@H]1C[C@@H](O)CC(=O)O1 PCZOHLXUXFIOCF-BXMDZJJMSA-N 0.000 description 2
- QLJODMDSTUBWDW-UHFFFAOYSA-N lovastatin hydroxy acid Natural products C1=CC(C)C(CCC(O)CC(O)CC(O)=O)C2C(OC(=O)C(C)CC)CC(C)C=C21 QLJODMDSTUBWDW-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- 239000011591 potassium Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 2
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 2
- -1 pyridine-substituted dihydroxyheptenoic acids Chemical class 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
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- 235000011152 sodium sulphate Nutrition 0.000 description 2
- CABVTRNMFUVUDM-VRHQGPGLSA-N (3S)-3-hydroxy-3-methylglutaryl-CoA Chemical compound O[C@@H]1[C@H](OP(O)(O)=O)[C@@H](COP(O)(=O)OP(O)(=O)OCC(C)(C)[C@@H](O)C(=O)NCCC(=O)NCCSC(=O)C[C@@](O)(CC(O)=O)C)O[C@H]1N1C2=NC=NC(N)=C2N=C1 CABVTRNMFUVUDM-VRHQGPGLSA-N 0.000 description 1
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- WZIMSXIXZTUBSO-UHFFFAOYSA-N 2-[[bis(carboxymethyl)amino]methyl-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CN(CC(O)=O)CC(O)=O WZIMSXIXZTUBSO-UHFFFAOYSA-N 0.000 description 1
- MWGATWIBSKHFMR-UHFFFAOYSA-N 2-anilinoethanol Chemical compound OCCNC1=CC=CC=C1 MWGATWIBSKHFMR-UHFFFAOYSA-N 0.000 description 1
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- 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 description 1
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- 108010018962 Glucosephosphate Dehydrogenase Proteins 0.000 description 1
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- 239000004472 Lysine Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
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- XJLXINKUBYWONI-DQQFMEOOSA-N [[(2r,3r,4r,5r)-5-(6-aminopurin-9-yl)-3-hydroxy-4-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl] [(2s,3r,4s,5s)-5-(3-carbamoylpyridin-1-ium-1-yl)-3,4-dihydroxyoxolan-2-yl]methyl phosphate Chemical compound NC(=O)C1=CC=C[N+]([C@@H]2[C@H]([C@@H](O)[C@H](COP([O-])(=O)OP(O)(=O)OC[C@@H]3[C@H]([C@@H](OP(O)(O)=O)[C@@H](O3)N3C4=NC=NC(N)=C4N=C3)O)O2)O)=C1 XJLXINKUBYWONI-DQQFMEOOSA-N 0.000 description 1
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- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
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- 239000000543 intermediate Substances 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
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- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
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- 150000007524 organic acids Chemical class 0.000 description 1
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- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
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- 238000007127 saponification reaction Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- GIZSHQYTTBQKOQ-UHFFFAOYSA-N threo-Syringoylglycerol Chemical compound COC1=CC(C(O)C(O)CO)=CC(OC)=C1O GIZSHQYTTBQKOQ-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/30—Oxygen atoms
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/06—Antihyperlipidemics
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- A—HUMAN NECESSITIES
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- A61P9/00—Drugs for disorders of the cardiovascular system
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- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
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- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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Description
Foreliggende oppfinnelse angår en analogifremgangsmåte for fremstilling av substituert pyridyldihydroksy-heptensyre og salter derav, samt et mellomprodukt til bruk i fremgangsmåten.
Det er kjent at laktonderivater som er isolert fra sopp-kulturer er inhibitorer av 3-hydroksy-3-metyl-glutaryl coenzym A reduktase (HMG-CoA-reduktase) og [Mevinolin, EP 22 478; US-4 231 938].
I tillegg til dette er det kjent at pyridin-substituerte dihydroksyheptensyrer er inhibitorer av HMG-CoA-reduktase [EP 325 130;EP 307 342;EP 306 929].
Det er nu funnet at den substituerte pyridyl-dihydroksy-heptensyre med formelen
og dennes salter, eventuelt en isomer form, oppviser en overlegen inhibitorisk virkning på HMG-CoA-reduktasen og dermed overraskende bevirket en god senkning av kolesterolinnholdet i blodet.
Den substituerte pyridyl-dihydroksy-heptensyre som fremstilles ifølge oppfinnelsen kan foreligge i form av sine salter. Generelt skal her nevnes salter med organiske eller uorganiske baser.
Innenfor rammen av oppfinnelsen foretrekkes fysiologisk godtagbare salter. Fysiologiske godtagbare salter av den fremstilte substituerte pyridyl-dihydroksy-heptensyre kan være metall- eller ammoniumsalter. Fortrinnsvis skal nevnes natrium-, kalium-, magnesium- eller kalsiumsalter samt ammoniumsalter som avledes fra ammoinakk eller organiske aminer som metylamin, etylamin, propylamin, isopropylamin, di- henholdsvis trietylamin, diidopropylamin, di- henholdsvis trietanolamin, disykloheksylamin, arginin, lysin eller etylendiamin. Spesielt foretrukket er natrium- og kalium-salter.
Den fremstilte substituerte pyridyl-dihydroksylheptensyre samt dennes salter har to asymmetriske karbonatomer, nemlig de to karbonatomer hvorpå hydroksygruppene er bundet, og kan derfor foreligge i forskjellige stereokjemiske former. Oppfinnelsen angår fremstilling av både de enkelte isomerer og deres blandinger. Således kan, forbindelsen, alt efter den relative posisjon for hydroksygruppene foreligge i erythro-konfigurasjon eller i threo-konfigurasjon: Erythro-form
Threo-form
Erythroformen er foretrukket.
Både av forbindelsene i threo- og i erythro-konfigurasjon eksisterer det i sin tur to enantiomerer, nemlig 3R,5S-isomeren henholdsvis 3S,5R-isomeren (erythro-form) samt 3R,5R-isomeren og 3S,5S-isomeren (threo-form). Foretrukket er av disse 3R,5S/3S,5S-racematene samt 3R,5S-enantiomeren.
Utover dette kan forbindelsene foreligge i E-konfigurasjon eller Z-konfigurasjon på grunn av dobbeltbindingen. Foretrukket er de forbindelser som har E-konfigurasjon.
Spesielt foretrukket er (+)-enantiomerene av den substituerte pyridyl-di-hydroksy-heptensyre i erythro-E-konfigurasjon samt salter derav.
Den substituerte pyridyl-dihydroksy-heptensyre med formel I
samt dennes salter, eventuelt i en isomer form, fremstilles ifølge oppfinnelsen ved at man [A] når det gjelder det rasemiske produkt, hydrolyserer den tilsvarende racemiske ester med formel II
der
R<1> betyr Ci_4~alkyl eller benzyl, eller
[B] når det gjelder de stereolsomere enhetlige produkter,
først overfører den racemiske ester med formel II, ved hjelp av det (+)- eller (-) -enantiomere amin med formel III
der
r<2> er eventuelt med hydroksysubstituert C^_4~alkyl og R<3> er hydrogen, halogen, C^_4-alkyl eller Ci_4~alkoksy, til det tilsvarende diastereomere amid med formel IV,
der R2 og R3 er som angitt ovenfor, og som også er en gjenstand for oppfinnelsen, separerer blandingen av diastereomere amider ved kromatografi eller krystallisering i de enkelte diastereomerer, og derefter hydrolyserer de rene diastereomere amider til de enantiomer rene produkter.
Fremgangsmåten skal illustreres ved følgende skjema:
Hydrolysen av esteren (II) skjer generelt ved at man behandler esteren i inerte oppløsningsmidler med baser hvorved det generelt først oppstår salter som så i et andre trinn ved behandling med syre overføres til den frie syre
(I).
Som oppløsningsmiddel for hydrolysen av esteren egner seg vann eller de for en forsepning av ester vanlige organiske oppløsningsmidler. Hertil hører fortrinnsvis alkoholer som metanol, etanol, propanol, isopropanol eller butanol, eller etere som tetrahydrofuran eller dioksan, eller dimetylformamid eller dimetylsulfoksid.
Spesielt foretrukket er alkoholer som metanol, etanol, propanol eller isopropanol. Likeledes er det mulig å anvende blandinger av de nevnte oppløsningsmidler.
Som baser for hydrolysen av estrene egner seg de vanlige uorganiske baser. Hertil hører fortrinnsvis alkali- eller jordalkalimetallhydroksider som natrium-, kalium- eller bariumhydroksyd, eller alkalikarbonater som natrium- eller kaliumkarbonat eller også natriumhydrogenkarbonat, eller videre alkalialkoholater som natriumetanolat. eller- metanol-at, kaliummetanolat, -etanolat eller -tertbutanolat. Spesielt foretrukket er natrium- eller kaliumhydroksyd.
Hydrolysen av estrene skjer generelt i et temperaturområde fra -ICC til +100°C, fortrinnsvis fra +20°C til +8CTC.
Generelt gjennomføres hydrolysen av esteren ved normalt trykk. Det er imidlertid også mulig å arbeide ved undertrykk eller ved overtrykk, for eksempel fra 0,5 til 5 bar.
Ved gjennomføring av hydrolysen blir basen generelt anvendt i en mengde på 1 til 3 mol, fortrinnsvis fra 1 til 5 mol, beregnet på 1 mol ester. Spesielt foretrukket er det å anvende molare mengder av reaktantene.
Ved gjennomføring av hydrolysen oppstår i et første trinn saltene av oppfinnelsens syre, som så kan isoleres. Oppfinnelsens syre oppnås ved behandling av saltene med vanlige uorganiske syrer. Hertil hører fortrinnsvis mineralsyrer som saltsyre, bromhydrogensyre, svovel- eller fosforsyre. Det har ved fremstilling av karboksylsyre herved vist seg fordelaktig å surgjøre reaksjonsblandingen fra hydrolysen i et andre trinn uten isolering av saltene. Syren kan så isoleres på vanlig måte.
Omsetningen av esteren II med de enantiomert rene aminer III til de diastereomere amider IV skjer generelt i inerte oppløsningsmidler. Som oppløsningsmidler egner seg for dette de for amidering vanlige organiske oppløsningsmidler. Hertil hører fortrinnsvis etere som dietyleter, dioksan eller tetrahydrofuran, eller klorerte hydrokarboner som etylen-klorid eller kloroform, eller dimetylformamid. Spesielt foretrukket er dog det tilsvarende amin III i overskudd, eventuelt med tetrahydrofuran eller dioksan som oppløsnings-middel.
Omsetningen gjennomføres generelt innen et temperaturområde fra 0 til 100°C, spesielt fra 20 til 80°C.
Omsetningen skjer generelt ved normalt trykk, det er imidlertid også mulig å arbeide ved under- eller overtrykk.
Ved omsetningen har det vist seg fordelaktig enten å anvende aminet direkte som oppløsningsmiddel i meget stort overskudd, eller å anvende det i et 1 til 10 ganger overskudd under anvendelse av et ytterligere oppløsningsmiddel.
Hydrolysen av de diastereomere amider IV skjer i henhold til vanlige metoder, for eksempel ved behandling av amidene med baser eller syrer i inerte oppløsningsmidler.
Som inerte oppløsningsmidler egner seg for dette formål vann og/eller organiske oppløsningsmidler. Som organiske opp-løsningsmidler foretrekkes alkoholer som etanol, etanol, propanol eller isopropanol, eller etere som dietyletere, dioksan eller tetrahydrofuran. Spesielt foretrukket er vann samt vann-alkoholblandinger.
Som syrer egner seg for hydrolyse av amidene de vanlige uorganiske eller organiske syrer. Fortrinnsvis anvendes her saltsyre, bromhydrogensyre, svovelsyre samt metan- eller toluensulfonsyre.
For hydrolyse av amidene egner seg som baser de vanlige uorganiske baser som natrium- eller kaliumhydroksyd eller natrium- eller kaliummetanolat eller- etanolat eller natrium-eller kaliumkarbonat.
Fortrinnsvis blir hydrolysen av amidene når det gjelder fenetylamid gjennomført i etanolisk saltsyre og når det gjelder fenylglycinolamider gjennomført med natronlut, eventuelt i nærvær av alkohol.
Hydrolysen av de diastereomere amider IV skjer generelt i et temperaturområde fra 0 til 150° C, fortrinnsvis fra 20 til 100°C.
Hydrolysen av amidene skjer vanligvis ved vanlig trykk, kan imidlertid også skje ved under- eller overtrykk.
Utover dette er det også mulig å fremstille de enantiomer rene salter med formel I idet man separerer de tilsvarende racemater i henhold til vanlige metoder innen kromatografien. De som utgangsstoffer anvendte aminer III er kjente eller kan fremstilles ved i og for seg kjente metoder. Foretrukket er ifølge oppfinnelsen aminer med formel III der R<3> er hydrogen og R<2> er metyl eller hydroksymetyl.
De diastereomere amider (IV) er nye og utgjør som nevnt også en gjenstand for oppfinnelsen. De er verdifulle mellom-produkter for fremstilling av den enantiomer-rene, substituerte pyridyl-dihydroksy-heptensyre og dennes salter.
Den ifølge oppfinnelsen fremstilte substituerte pyridyl-dihydroksy-heptensyre, dennes salter samt de isomere former har verdifulle og i forhold til den kjente teknikk overlegne, farmakologiske egenskaper, spesielt er de høyvirksomme inhibitorer av 3-hydroksy-3-metyl-glutaryl coenzym Å (HGM-CoA) reduktase og som følge derav, inhibitorer av kolesterol biosyntesen. De kan derfor anvendes for behandling av hyperlipoproteinemi eller arteriosklerose. De ifølge oppfinnelsen fremstilte aktive bestanddeler bevirker i tillegg til dette en reduksjon av kolesterolinnholdet i blod.
Den farmakologiske virkning av de tilsvarende stoffer ble bestemt i de følgende prøver. A) Enzymaktivitets bestemmelsen ble modifisert i henhold til G.C. Ness et al., "Archives of Biochemistry and Bio-physics" 197, 493-499 (1979). Ricohannrotter med kroppsvekt 300 til 400 g ble behandlet i 11 dager med altromin-pulverfor hvortil det var satt 4 g kolestyramin pr. kg for. Efter dekapitering ble leveren fjernet og lagt på is. Leveren ble hakket opp og homogenisert i en Potter-Elvejem homogenisator, 3 ganger, i 3 volumer 0,1 m Saccharose, 0,05 m KC1, 0,04 m KxEyfosfat (blanding av K2HPO4 og KH2P04 med pH 7,2), 0,03 m etylendiamintetra-eddiksyre, 0,002 m dithiothreit (SPE)-buffer (Saccharose-fosfat-etylendiamineddiksyrebuffer) pH 7,2. Derefter ble det hele sentrifugert i 15 minutter og sedimentet kastet. Supernatanten ble sedimentert i 75 minutter ved 100.000 g. Den oppnådde Pellet ble tatt opp i et 1/4 volum SPE-buffer, homogenisert en gang til og derefter sentrifugert på ny i 60 minutter. Denne Pellet ble tatt opp med 5 ganger sitt eget voulm av SPE-buffer, homogenisert og frosset inn ved -78°C og lagret (enzymoppløsning).
For utprøving ble prøveforbindelsen (henholdsvis Mevinolin som referanseforbindelse) oppløst i dimetylformamid under tilsetning av 5 volum-# 1 n NaOH og derefter anvendt i en mengde av IOjjI i forskjellige konsentrasjoner i enzym-prøven. Prøven ble startet efter 20 minutters forin-kubering av forbindelsen med enzymet ved 37°C. Prøvesatsen utgjorde 0,380 ml og inneholdt 4pMol glucose-6-f osf at, 1,1 mg kvegserumalbumin, 2,1 pMol di thiothreit, 0,35 pMol NADP (P-nikotinamid-adenin-dinucleotid-fosfat) 1 enhet glucose-6-fosfatdehydrogenase, 35 pMol KxYx-fosfat pH 7,2, 20 pl enzympreparat og 56 nMol 3-hydroksy-3-metyl-glutaryl coenzym A (glutaryl-3-<14>C) 100 000 dpm.
Man inkuberte i 60 minutter ved 37 °C og stanset reaksjonen ved tilsetning av 300 pl 0,25 m HC1. Efter en efter-inkubering på 60 minutter ved 37°C ble det hele sentrifugert og 600 pl av resten ble bragt på en 0,7 cm x 4 cm søyle fylt med 5-klorid ionebuffer med en kornstørrelse på 100 til 200 mesh. Man vasket efter med 2 ml destillert vann og gjennomløpet + vaskeløpet ble tilsatt 3 ml av en scintillasjonsvaeske og tellet i en scintillasjonsteller. IC5Q-verdiene ble bestemt efter oppføring av den prosent-uale hemming mot konsentrasjonen av forbindelsen i prøven ved interpolasjon. For bestemmelse av den relative inhibitoriske potens ble IC-50 verdien for referanse substansen med vinolin satt til 100 og sammenlignet med den simultan bestemte IC^g-verdi av prøveforbindelsen.
B) Den serumkolesterolsenkende virkning av oppfinnelsens forbindelser på blodkolesterolverdien hos hunder ble funnet efter flere ukers foringsforsøk. For dette formål ble stoffer som skulle undersøkes gitt over flere uker en gang daglig i en kapsel til sunne beaglehunder sammen med foret, pr. oralt. Til foret ble det i hele forsøks-perioden, det vil si før, under og efter applikasjonsperioden for stoffer som skulle undersøkes, satt kolestyramin i en mengde av 4 g pr. 100 g for 9 som galle-syresekvesteringsmiddel.
To ganger ukentlig ble det fra hundene tappet veneblod og serumkolesterol bestemt ved hjelp av et kommersielt prøve-sett. Serumkolesterolverdien under applikasjonsperioden ble sammenlignet med serumkolesterolverdiene før applikasjonsperioden (kontroller).
De ifølge oppfinnelsen fremstilte forbindelser finner andelse i farmasøytiske preparater som ved siden av inerte, ikke-toksiske, farmasøytisk egnede hjelpestoffer og bærere inneholder en eller flere forbindelser med den generelle formel I, eller består av en eller flere aktive bestanddeler med formel I samt fremgangsmåter for
De virksomme bestanddeler med formel I foreligger i disse preparater i en konsentrasjon fra 0,1 til 99,5 vekt-^,fortrinnsvis 0,5 til 95 vekt-#, av den totale blanding.
Ved siden av de aktive bestanddeler med formel I kan de farmasøytiske preparater også inneholde andre farma-søytiske aktive bestanddeler.
De ovenfor anførte farmasøytiske preparater kan fremstilles på i og for seg vanlig måte i henhold til kjente medtoder, for eksempel med hjelpestoffene eller bærerne.
Generelt har det vist seg fordelaktig å administrere den aktive bestanddel med formel I i totale mengder på ca 0,1 til ca 100 jjg pr. kilo, fortrinnsvis i totale mengder på ca 1 til 50 jjg pr. kg kroppsvekt pr. 24 timer, eventuelt i fo rm av flere enkeltdoser, for å oppnå de ønskede resultater.
Det kan imidlertid også være fordelaktig å avvike fra de nevnte mengder, fortrinnsvis i avhengighet av subjekter som skal behandles og dettes kroppsvekt, den individuelle oppførsel overfor medikamenter, typen og alvoret av sykdommen samt typen preparat og applikering samt videre tidspunkt henholdsvis intervallet i løpet av hvilket administreringen skjer.
Utførelseseksempler
Eksempel 1
3R,5S-( + ) -nat rium-eryto-(E )-7-[4-(4-fluorfenyl)-2,6-di-i sopropyl - 5-metoksy-metyl-pyrid-3-yl]-3,5-dihydroksy-hept-6-enoat
og
Eksempel 2
3S,5R-(-)-natrium-erythro-(E ) -7- [4- ( 4-f luorfenyl )-2 ,6-di isopropyl-5-metoksy-metyl-pyrid-3-yl]-3,5-dihydroksy-hept-6-enoat.
Fremaan<g>småtevariant Å: racematseparering med R-(+)-fenyl-etylamin.
a) Fremstilling og separering av de diastereomere fenetyl-amider
4,7 g (lOmmol) metyl-erythro-(E)-4-(4-fluorfenyl)-2,6-di i sopr opyl -5 -me tok syrne ty lpyr id-3-yl] -3 , 5-dihydroksy-hept-6-enoat oppløst i 20 ml R-(+ )-fenetylamin og oppvarmes i 72 timer til 40°C. Reaksjonsoppløsningen helles i 150 ml vann og pH-verdien for denne oppløsning innstilles til 4 med 1 N saltsyre. Derefter ekstraheres flere ganger med eter. De rensede organiske ekstrakter vaskes med mettet natriumklorid-oppløsning, tørkes over magnesiumsulfat og dampes inn. Efter en forrensing over silicagel 63-200 \ i (elueringsmiddel eddik-ester rpetroleter 4:6 6:4) separeres det hele over en 15 ferdig søyle (elueringsmiddel eddikester:petroleter 1:1). "Utbytte: 2,1 g diastereomer Al (37,4 % av det teoretiske ), 1,5 g diastereomer Bl (26,6 $ > av det teoretiske ). b) Fremstilling av det enansiomer rene natriumsalt (eksempel 1/2).
2,1 g (3,7mmol) av diastereomeren Al oppløses i 70 ml 15 #-ig etanol og oppvarmes efter tilsetning av 13 ml ln saltsyre til tilbakeløp i 48 timer. Efter avkjøling filtreres supernatanten og resten omrøres flere ganger med etanol. De rensede etanoloppløsninger dampes inn og resten tas opp i 50 ml vann og 50 ml diklormetan. pH-verdien for oppløsningen innstilles til 3,5 med 1 n saltsyre og oppløsningen ekstraheres så flere ganger med diklormetan. De rensede organiske oppløsninger tørkes over natriumsulfat og dampes inn. Resten tas opp i 50 ml tetrahydrofuran:vann 1:1 og pH-verdien i opp-løsningen innstilles til 7,5 med 1 n natronlut. Tetrahydrofuran dampes av i en rotasjonsfordamper og den tilbakebliv-ende vandige oppløsning lyofiliseres. Det urene lyofilisat renses over RP 18 (elueringsmiddel acetonitril:vann 30:70). Efter frysetørking av produktfraksjonen oppnår man 850 mg tilsvarende 48 1o av det teoretiske av det (+ )-ensaiomere natriumsalt (eksempel 1).
^-H-NMR (DMSO-d6):S (ppm) = l,0(m,lH); 1,23 (d,6H); 1,28 (d,6H); 1,3 (m, 1H); 1,75 (dd.lH); 1,98 (dd,lE);3,07 (s,3H); 3,2-3,4(m,3H); 3,52 (m,1H),4,02(m,2H);5,28(dd, 1H );6,17 (d.lH);7,l-7,3(m,4H).
Spesifikk dreining (EtOH): [a]D<20>=24,1° (c=l,0).
Fra 1,5 g (2,6 mmol) av diastereomeren Bl oppnådde man som beskrevet ovenfor 800 mg eller 61,5 # av det teoretiske av det (-)-enantiomere natriumsalt (eksempel 2).
Spesifikk dreining (EtOH):[a]D<20>=-23,2°(c=l,0).
Fremgan<g>småtevariant B - racematseparering med S-(+)fenyl glycinol
a) Fremstilling av de diastereomere fenylglycinolamider
418 g (0,88 Mol) metyl-eryto-(E)-7-[4-fluorfenyl)-2,6-diisopropyl-5-metoksymetyl-pyrid-3-yl]-3,5-dihydroksy-hept-6~ enoat og 360 g.(2,6 Mol) S-( + )-fenylglycinol oppløses i 1 liter absolutt tetrahydrofuran og oppvarmes til 50°C i 96 timer. Efter avkjøling til romtemperatur tilsetter man 1 liter vann, oppløsningen innstilles til pH 4 med 5 n saltsyre og det hele ekstraheres med 3 x 400 ml eter. De rensede organiske faser vaskes med 400 ml mettet natriumkloridopp-løsning, tørkes over natriumsulfat og dampes inn i en rotasjonsfordamper. Resten, 500 g råprodukt, forsepareres i 2 porsjoner over en søyle (ca 1,8 g cilicagel hver gang)
(elueringsmiddel eddikester:petroleter 8:2). Man oppnår på denne måte 350 g forrenset råprodukt som så og si utelukkende består av de 2 diastereoisomere amider. Det forrensede råprodukt separeres i 7 porsjoner på 50 g over en cilicagel-søyle (Biichi-søyle, lengde 63 mm, diamter 7 cm, 20 jj cilicagel, over 100 ml prøvesløyfe).
Ubyttet var 195 g tilsvarende 38,2 % av det teoretiske, av diastereomeren A2. Diastereomeren B2 ble ikke isolert ren, men oppnådd ved spyling av søylen for en eventuell senere anvendelse som råprodukt. b) Fremstilling av det enansiomer rene natriumsalt (eksempel 1/2).
195 g (0,34 Mol) av det diastereomer rene amidet A2 ble oppløst ill etanol p.A. og det hele ble efter tilsetning av 1,2 1 n natronlut, oppvarmet til tilbakeløp over natten. Efter avkjøling til romtemperatur ble supernatanten dekantert av og den oljeaktige rest vasket med 3 x 50 ml etanol p.A. Oppløsningen ble renset og dampet inn. Resten ble tatt opp i 500 ml vann og 500 ml metylenklorid og pH-verdien ble innstilt til 3,5 med 1 n saltsyre. Derefter ble den organiske fase separert av og den vandige fase ekstrahert med 3 x 400 ml metylenklorid. De rensede organiske faser ble tørket ved Na2S04 og dampet inn. Resten ble oppløst i 100 ml tetrahydro-
furan og oppløsningen ble fortynnet med 500 ml vann. Derefter ble pH-verdien innstilt til 7,5 med 1 n natronlut, tetrahydrofuran ble trukket av i en rotasj onsf ordamper og den tilbakeblevne vandige oppløsning ble lyofilisert.
Man oppnår 142 g urent lyofilisat som for avsalting renses videre i 27 andeler av 5 g og 2 andeler av 3,5 g over en RP 18 søyle (lengde 40 cm, diameter 3 cm, kiselgel RP 18, 30 ji.
Elueringsmiddel acetonitril:vann 30:70) og avsaltes. Alle produktfraksjoner renses, acetonitril trekkes av på rotasj onsf ordamper og den vandige rest lyofiliseres. Utbyttet vae 102 g tilsvarer 62,5 % av det teoretiske av det (+)-enantiomere natriumsalt (eksempel 1).
Claims (1)
1.
Analogifremgangsmåte for fremstilling av substituert pyridyl-dihydroksy-heptensyre ned formelen
og salter derav, eventuelt i en isomer form, karakterisert ved at man [A] når det gjelder det racemiske produkt hydrolyserer
den tilsvarende racemiske ester med formel II
der R<*> betyr Ci_4-alkyl eller benzyl, eller [B] når det gjelder de stereoisomere enhetlige produkter, først overfører den racemiske ester med formel II, ved hjelp av det (+)- eller (-) -enantiomere amin med formel III der
R<2> er eventuelt med hydroksysubstituert C1_4-alkyl og R<3> er hydrogen, halogen, C<1-4->alkyl eller C1_4-alkoksy, til det tilsvarende diastereomere amid md formel IV
separerer blandingen av diastereomere amider ved kromatografi eller krystallisering i de enkelte diastereomerer, og derefter hydroliserer de rene diastereomere amider til de enansiomer rene produkter.
2-Mellomprodukt for fremstilling av diastereomere amider som beskrevet i krav 1, karakterisert ved formelen
der
R<2> betyr eventuelt med hydroksysubstituert Ci_4~alkyl og R<3> betyr hydrogen, C^_4-alkyl» halogen eller Ci_4-alkoksy.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE4040026A DE4040026A1 (de) | 1990-12-14 | 1990-12-14 | Substituierte pyridyl-dihydroxy-heptensaeure und deren salze |
IT002125A ITMI912125A1 (it) | 1991-07-31 | 1991-07-31 | Acidi piridil-diidrossi-eptenoici sostituiti e loro sali |
Publications (4)
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NO914696D0 NO914696D0 (no) | 1991-11-29 |
NO914696L NO914696L (no) | 1992-06-15 |
NO177140B true NO177140B (no) | 1995-04-18 |
NO177140C NO177140C (no) | 1995-07-26 |
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ID=25899340
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NO914696A NO177140C (no) | 1990-12-14 | 1991-11-29 | Analogifremgangsmåte for fremstilling av substituert pyridyl-dihydroksy-heptensyre og salter derav samt mellomprodukt til bruk i fremgangsmåten |
NO1998025C NO1998025I1 (no) | 1990-12-14 | 1998-10-22 | Cerivastatin |
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NO1998025C NO1998025I1 (no) | 1990-12-14 | 1998-10-22 | Cerivastatin |
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-
1995
- 1995-05-26 CN CN95106818A patent/CN1092641C/zh not_active Expired - Fee Related
- 1995-06-09 HU HU95P/P00173P patent/HU211695A9/hu unknown
-
1996
- 1996-08-16 GR GR960402166T patent/GR3020826T3/el unknown
-
1997
- 1997-08-19 NL NL970033C patent/NL970033I1/nl unknown
-
1998
- 1998-03-18 LU LU90230C patent/LU90230I2/fr unknown
- 1998-04-30 HK HK98103707A patent/HK1004552A1/xx not_active IP Right Cessation
- 1998-10-22 NO NO1998025C patent/NO1998025I1/no unknown
-
2000
- 2000-09-08 CN CN00127089A patent/CN1329888A/zh active Pending
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