EP1631563A1 - Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for synthesizing epothilones and derivatives derivatives, and methods for producing these esters - Google Patents
Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for synthesizing epothilones and derivatives derivatives, and methods for producing these estersInfo
- Publication number
- EP1631563A1 EP1631563A1 EP04739609A EP04739609A EP1631563A1 EP 1631563 A1 EP1631563 A1 EP 1631563A1 EP 04739609 A EP04739609 A EP 04739609A EP 04739609 A EP04739609 A EP 04739609A EP 1631563 A1 EP1631563 A1 EP 1631563A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dimethyl
- alkyl
- methyl
- compounds
- general formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title abstract description 18
- 229930013356 epothilone Natural products 0.000 title abstract description 11
- HESCAJZNRMSMJG-KKQRBIROSA-N epothilone A Chemical class C/C([C@@H]1C[C@@H]2O[C@@H]2CCC[C@@H]([C@@H]([C@@H](C)C(=O)C(C)(C)[C@@H](O)CC(=O)O1)O)C)=C\C1=CSC(C)=N1 HESCAJZNRMSMJG-KKQRBIROSA-N 0.000 title abstract description 9
- 150000002148 esters Chemical class 0.000 title abstract description 6
- IDMAIBPWAIEJFE-UHFFFAOYSA-N 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid Chemical class OCCC(O)C(C)(C)C(=O)CC(O)=O IDMAIBPWAIEJFE-UHFFFAOYSA-N 0.000 title abstract description 4
- 230000002194 synthesizing effect Effects 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 claims description 41
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 125000006239 protecting group Chemical group 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 125000000882 C2-C6 alkenyl group Chemical group 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 125000000304 alkynyl group Chemical group 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 125000000654 isopropylidene group Chemical group C(C)(C)=* 0.000 claims description 3
- 125000003601 C2-C6 alkynyl group Chemical group 0.000 claims description 2
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000005082 alkoxyalkenyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical compound BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims 1
- 150000002641 lithium Chemical group 0.000 claims 1
- 239000000047 product Substances 0.000 description 37
- 238000006243 chemical reaction Methods 0.000 description 36
- -1 heterocyclic radical Chemical class 0.000 description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 22
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 21
- 239000000243 solution Substances 0.000 description 18
- 238000005804 alkylation reaction Methods 0.000 description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 16
- 230000029936 alkylation Effects 0.000 description 15
- 239000000203 mixture Substances 0.000 description 14
- 238000003786 synthesis reaction Methods 0.000 description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 12
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 11
- 238000000921 elemental analysis Methods 0.000 description 11
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 238000006114 decarboxylation reaction Methods 0.000 description 10
- 239000000543 intermediate Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 10
- 238000004809 thin layer chromatography Methods 0.000 description 9
- 239000002585 base Substances 0.000 description 8
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 8
- 238000007127 saponification reaction Methods 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 7
- 239000000741 silica gel Substances 0.000 description 7
- 229910002027 silica gel Inorganic materials 0.000 description 7
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- XUCKPVVDUREPQH-LBPRGKRZSA-N 2-[(4s)-2,2-dimethyl-1,3-dioxan-4-yl]-2-methylhept-6-en-3-one Chemical class C=CCCC(=O)C(C)(C)[C@@H]1CCOC(C)(C)O1 XUCKPVVDUREPQH-LBPRGKRZSA-N 0.000 description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 5
- 125000005907 alkyl ester group Chemical group 0.000 description 5
- 235000019270 ammonium chloride Nutrition 0.000 description 5
- 150000003883 epothilone derivatives Chemical class 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 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 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 150000002576 ketones Chemical class 0.000 description 4
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 description 4
- 239000003120 macrolide antibiotic agent Substances 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- 150000002902 organometallic compounds Chemical class 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 229910000104 sodium hydride Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229930194542 Keto Natural products 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- DVSDBMFJEQPWNO-UHFFFAOYSA-N methyllithium Chemical compound C[Li] DVSDBMFJEQPWNO-UHFFFAOYSA-N 0.000 description 3
- 230000020477 pH reduction Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 150000003254 radicals Chemical class 0.000 description 3
- 230000008707 rearrangement Effects 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGPKAFNRXHKSMT-JTQLQIEISA-N 2-[(4s)-2,2-dimethyl-1,3-dioxan-4-yl]-2-methylpentan-3-one Chemical compound CCC(=O)C(C)(C)[C@@H]1CCOC(C)(C)O1 QGPKAFNRXHKSMT-JTQLQIEISA-N 0.000 description 2
- DMAYBPBPEUFIHJ-UHFFFAOYSA-N 4-bromobut-1-ene Chemical compound BrCCC=C DMAYBPBPEUFIHJ-UHFFFAOYSA-N 0.000 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 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006563 Carroll rearrangement reaction Methods 0.000 description 2
- OIFBSDVPJOWBCH-UHFFFAOYSA-N Diethyl carbonate Chemical compound CCOC(=O)OCC OIFBSDVPJOWBCH-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000002168 alkylating agent Substances 0.000 description 2
- 229940100198 alkylating agent Drugs 0.000 description 2
- BHELZAPQIKSEDF-UHFFFAOYSA-N allyl bromide Chemical compound BrCC=C BHELZAPQIKSEDF-UHFFFAOYSA-N 0.000 description 2
- 238000005937 allylation reaction Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 2
- 229940073608 benzyl chloride Drugs 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- JKJWYKGYGWOAHT-UHFFFAOYSA-N bis(prop-2-enyl) carbonate Chemical compound C=CCOC(=O)OCC=C JKJWYKGYGWOAHT-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- GUVUOGQBMYCBQP-UHFFFAOYSA-N dmpu Chemical compound CN1CCCN(C)C1=O GUVUOGQBMYCBQP-UHFFFAOYSA-N 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- HVTICUPFWKNHNG-UHFFFAOYSA-N iodoethane Chemical compound CCI HVTICUPFWKNHNG-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 125000000468 ketone group Chemical group 0.000 description 2
- WMFOQBRAJBCJND-UHFFFAOYSA-M lithium hydroxide Inorganic materials [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 2
- 239000012312 sodium hydride Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- HEWZVZIVELJPQZ-UHFFFAOYSA-N 2,2-dimethoxypropane Chemical compound COC(C)(C)OC HEWZVZIVELJPQZ-UHFFFAOYSA-N 0.000 description 1
- ADQVHPMMGAMGFP-LBPRGKRZSA-N 2-[(4s)-2,2-dimethyl-1,3-dioxan-4-yl]-2-methylheptan-3-one Chemical class CCCCC(=O)C(C)(C)[C@@H]1CCOC(C)(C)O1 ADQVHPMMGAMGFP-LBPRGKRZSA-N 0.000 description 1
- QHXXWZLTJOQQNF-NSHDSACASA-N 2-[(4s)-2,2-dimethyl-1,3-dioxan-4-yl]-2-methylhexan-3-one Chemical compound CCCC(=O)C(C)(C)[C@@H]1CCOC(C)(C)O1 QHXXWZLTJOQQNF-NSHDSACASA-N 0.000 description 1
- IIVWHGMLFGNMOW-UHFFFAOYSA-N 2-methylpropane Chemical compound C[C](C)C IIVWHGMLFGNMOW-UHFFFAOYSA-N 0.000 description 1
- WDYVUKGVKRZQNM-UHFFFAOYSA-N 6-phosphonohexylphosphonic acid Chemical compound OP(O)(=O)CCCCCCP(O)(O)=O WDYVUKGVKRZQNM-UHFFFAOYSA-N 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000000023 Kugelrohr distillation Methods 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- RZKYEQDPDZUERB-UHFFFAOYSA-N Pindone Chemical group C1=CC=C2C(=O)C(C(=O)C(C)(C)C)C(=O)C2=C1 RZKYEQDPDZUERB-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 241001532577 Sorangium Species 0.000 description 1
- 241001104043 Syringa Species 0.000 description 1
- 235000004338 Syringa vulgaris Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- OCBFFGCSTGGPSQ-UHFFFAOYSA-N [CH2]CC Chemical compound [CH2]CC OCBFFGCSTGGPSQ-UHFFFAOYSA-N 0.000 description 1
- QQIRAVWVGBTHMJ-UHFFFAOYSA-N [dimethyl-(trimethylsilylamino)silyl]methane;lithium Chemical compound [Li].C[Si](C)(C)N[Si](C)(C)C QQIRAVWVGBTHMJ-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 150000001347 alkyl bromides Chemical class 0.000 description 1
- 150000001348 alkyl chlorides Chemical class 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- RMRFFCXPLWYOOY-UHFFFAOYSA-N allyl radical Chemical compound [CH2]C=C RMRFFCXPLWYOOY-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 150000001649 bromium compounds Chemical class 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004063 butyryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005933 dealkoxycarbonylation reaction Methods 0.000 description 1
- 238000006567 deketalization reaction Methods 0.000 description 1
- 230000005595 deprotonation Effects 0.000 description 1
- 238000010537 deprotonation reaction Methods 0.000 description 1
- FAMGJMYDHOESPR-UHFFFAOYSA-M dilithium;carbanide;bromide Chemical compound [Li+].[Li+].[CH3-].[Br-] FAMGJMYDHOESPR-UHFFFAOYSA-M 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000005448 ethoxyethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 description 1
- 150000004694 iodide salts Chemical class 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- YNESATAKKCNGOF-UHFFFAOYSA-N lithium bis(trimethylsilyl)amide Chemical compound [Li+].C[Si](C)(C)[N-][Si](C)(C)C YNESATAKKCNGOF-UHFFFAOYSA-N 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229910000103 lithium hydride Inorganic materials 0.000 description 1
- FRIJBUGBVQZNTB-UHFFFAOYSA-M magnesium;ethane;bromide Chemical compound [Mg+2].[Br-].[CH2-]C FRIJBUGBVQZNTB-UHFFFAOYSA-M 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 238000006263 metalation reaction Methods 0.000 description 1
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 125000002560 nitrile group Chemical group 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 150000002900 organolithium compounds Chemical class 0.000 description 1
- 150000002901 organomagnesium compounds Chemical class 0.000 description 1
- 238000010653 organometallic reaction Methods 0.000 description 1
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 description 1
- 125000006503 p-nitrobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1[N+]([O-])=O)C([H])([H])* 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
- LEVJVKGPFAQPOI-UHFFFAOYSA-N phenylmethanone Chemical compound O=[C]C1=CC=CC=C1 LEVJVKGPFAQPOI-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000005588 protonation Effects 0.000 description 1
- 238000006462 rearrangement reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 125000001981 tert-butyldimethylsilyl group Chemical group [H]C([H])([H])[Si]([H])(C([H])([H])[H])[*]C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 125000005490 tosylate group Chemical group 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 238000011911 α-alkylation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
- C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
Definitions
- the invention relates to protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for the synthesis of epothilones and derivatives and processes for Production of these esters, i.e. new intermediates and processes for their production and use.
- the process for the production of new intermediates is based on inexpensive starting materials, supplies the intermediates in high enantiomeric purities, in high chemical purity, in good yields and allows large-scale production.
- the invention is used in the synthesis of the C1-C6 segment required for the production of natural and synthetically modified epothilones or derivatives.
- the natural epothilones are 16-membered macrolide rings isolated from cultures of the Myxobacte around Sorangium Cellosum and represent a class of promising antitumor agents that have been tested to be effective against a range of cancer lines.
- R represents a C1-C4-alkyl radical, such as the methyl, ethyl, n- or i-propyl, n-butyl or tert-butyl radical or a C2-C4-alkenyl radical, such as the vinyl or allyl radical, PGi and PG 2 are known to a person skilled in the art for a hydroxy function
- Protecting groups such as, for example, methoxymethyl, methoxyethyl, ethoxyethyl, tetrahydropyranyl, tetrahydrofuranyl, trimethylsilyl, triethylsilyl, tert.butyldimethylsilyl, tert.butyldiphenylsilyl, tribenzylsilyl, triisopropyl, triisopropyl Butyl, benzy
- a preparation of the epothilone C1-C6 segment of the formula III is described in patent applications WO 03/04063 and WO 03/015068.
- the starting compounds of type Ila or type IIb are converted in an organometallic reaction with an alkyl metal to a compound of the formula III.
- R 6 alkyl, alkenyl, alkynyl, etc., see description
- the conversion of the dialkylamide group in IIIa or the nitrile group in IIb can be achieved in a smooth reaction in a synthesis step to III. After hydrolysis of the reaction mixture, the product of formula III is obtained in a high yield.
- the direct reaction of an organometal with an alkyl ester function -CO 2 R a is not selective, since the intermediate ketone continues to react. In the case of the primary adducts from Ila or IIb, these are stabilized and do not react further to the carbinol in question as a side reaction.
- organolithium and organometallic compounds are limited. It would therefore be advantageous if standard lithium organyles could be used, which are commercially available or can be produced in a simple manner. With these, a further alkyl radical should be introduced in a subsequent alkylation step via ⁇ -alkylation of the methyl ketone of the formula purple. This would be particularly advantageous if the alkyl or alkenyl halide on which the organometallic compound is based is quite expensive or is not available, as is the case with the C4-C6 alkenyl halides, for example. For example, in the case of a homoallyl residue to be introduced, the underlying homoallyl bromide is very expensive.
- but-3-en-1-lithium lithium also causes technical problems.
- the conversion of 1-bromobut-3-en to but-3-en-1-lithium is accompanied by the elimination to buta-1, 3-diene.
- the alkylation is carried out with a suitable alkylating agent in the presence of a base to give a compound of the form IVa.
- a suitable alkylating agent in the presence of a base to give a compound of the form IVa.
- the bisalkylation product of formula IVb is definitely undesirable.
- bisalkylation product IVb is also generally formed, and the conversion is often incomplete, so that starting material also remains.
- condensation reactions can also occur in the alkylation reaction.
- the reaction products such as monoalkylation product IVa, bisalkylation product IVb and starting material of the formula purple can generally only be separated with difficulty.
- the problem of bisalkylation has been discussed by A. Streitwieser et al. in Org. Lett., 2001, 3, 2599-2601.
- a problem with purification is that the reaction mixture consisting of starting material, monoalkylation product and bisalkylation product has to be separated.
- the present invention was intended to provide a process which allows only the monoalkylation product to IV a to be obtained in a simple manner in the alkylation of lilac.
- a ⁇ -keto ester of the general form V is prepared from a compound of the general formula purple.
- Keto esters of the general formula V provide access to compounds of the general formula VI which, after saponification to VII and decarboxylation of the ester group, gives a product of the formula IVa.
- the compounds of the general formula V can be prepared by known methods from a compound of the general formula purple and an ester of carbonic acid, preferably dimethyl or diethyl carbonate.
- an ester of carbonic acid preferably dimethyl or diethyl carbonate.
- sodium methylate, sodium ethanolate, potassium tert-butoxide or sodium hydride is used as the base.
- the carbonate itself can also serve as the solvent.
- keto esters of the formula V can be alkylated well to give compounds of the general formula VI.
- bases are metal hydroxides such as sodium, lithium, potassium or calcium hydroxide, metal hydrides such as sodium or lithium hydride, amine bases such as LDA (lithium diisopropylamide), sodium amide, LiHMDS (lithium hexamethyldisilazane), metal alkoxides such as, for.
- LDA lithium diisopropylamide
- sodium amide lithium amide
- LiHMDS lithium hexamethyldisilazane
- metal alkoxides such as, for.
- R 6 in R 6 X and thus in the general formulas IIIa, IVa, VI and VII has the meaning of C- ⁇ -C 6 alkyl, C 2 -C 6 alkenyl or C 2 -C 6 alkynyl.
- C 1 -C 6 alkyl can be straight-chain or branched, R 6 can also be an alkoxyalkyl, alkoxyalkenyl, alkoxyalkynyl and also.
- Aryl-alkyl mean in which alkyl in the alkoxy part is a C 1 -C 6 -alkyl radical and aryl is a phenyl or naphthyl radical and - Alkyl, alkenyl, alkynyl are a CC 6 alkyl, C 2 -C 6 alkenyl or C 2 -C 6 alkynyl radical.
- R 6 represents the radical allyl, crotyl or benzyl.
- the alkylation is carried out with the corresponding alkyl halides, allyl halides, benzyl halides, tosylates and the radical R 6
- Alkyl sulfur ester derivatives of the formula R 6 X can be carried out.
- Alkyl chlorides, bromides, iodides and alkyl esters of sulfuric acid and alkyl esters of alkyl sulfonic acids or aryl sulfonic acids are preferably used as alkylating agents.
- the inventive method has the advantage that no expensive complexing agents such as B. DMPU (dimethylpropyleneurea) are required. Also, no low temperature conditions are required for the alkylation. The alkylation can be carried out in a temperature range between 0 ° C and 50 ° C. The reactions are also robust and not very sensitive to moisture and air presence. If the conversion is incomplete, the base and alkylation agents can be added. Condensation products due to self-condensation do not occur.
- B. DMPU dimethylpropyleneurea
- Acidification is preferably carried out with phosphoric acid or ammonium chloride solution, acidification takes place under pH control.
- the compounds of the general formula IVa are surprisingly stable in the alkaline range.
- the compounds of general formula VII can be reacted at a temperature up to 100 ° C for decarboxylation. It has been found that the decarboxylation can be carried out at a pH of 4-9. The pH is crucial for the stability of the protective groups during decarboxalation.
- the compounds of the formula II, Iva, V and VI can be reacted further in solution without intermediate isolation.
- An advantage is the quality of the product produced by this process, which contains less than 1 percent of the educt purple and less than 1 percent of the bisalkylated compound IVb.
- the compounds of the general formula VI can also be converted directly to the compounds of the general formula IVa by reacting the compounds of the general formula VI with lithium carbonate in DMF
- the compounds of the formula VI can also be prepared from a compound of the general formula IIb and a bromoester of the general formula VIII in a Reformatsky-type reaction with zinc under the action of ultrasound (K. Nakunan, B.-J. Uang, Synthesis 1989 , 571.
- R1 and R6 in the compounds of the general formulas VI and VIII have the meanings given previously in the general formula VI.
- the allyl ester of the formula IX can be used for the synthesis.
- IX One method for the synthesis of IX is the reaction of a compound of the general purple by reaction with diallyl carbonate in the presence of a base.
- the allyl ketoesters of the formula IX can also be obtained, for example, by transesterification of an alkyl ester of the general formula V.
- allyl keto ester of the general formula IX can also be used in a
- Rearrangement reaction can be converted into the product of the general formula X.
- This rearrangement is favored in the presence of bases and can be carried out at milder temperatures (see J.Org. Chem., 1987, 52, 2988-2995).
- an aluminum alkoxide such as z. B. AI (OiPr) 3 (aluminum tri-isopropylate) can be used.
- This reaction from IX to X can also be carried out by transesterifying an alkyl ester of the general formula V in the presence of a base, the subsequent reaction taking place with decarboxylation in the presence of aluminum alkoxides according to route A) and migration of the allyl group.
- Such palladium-catalyzed decarboxylations / allylations have been described by J. Tsuji et al. in J. Org. Chem., 1987, 52, 2988-2995.
- allyl esters of the general formula IX can be converted into a homoallyl ketone of the general formula X with decarboxylation and simultaneous allylation.
- R in the general formulas IX, X and XI can mean hydrogen or a straight-chain or branched-chain C 6 -C 6 alkyl radical, such as. B. have a methyl, ethyl or propyl radical.
- the double bond in compounds of the general formula X can be converted to the saturated form of the compounds of the general formula XI using hydrogen using a palladium or platinum catalyst.
- the process according to the invention permits the selective monoalkylation of alkyl ketones. It is possible to introduce different alkyl radicals which are not available or are difficult to access as an organometallic compound.
- the problem for the synthesis of homoallyl ketones of the formula X was solved.
- the present invention is illustrated by the following examples:
- S-3- (2,2-dimethyl- [1,3] dioxan-4-yl) -4-methyl-3-oxopentanoic acid ethyl ester is prepared from the compound Example 1 and diethyl carbonate.
- S-3- (2,2-dimethyl- [1,3] dioxan-4-yl) -4-methyl-5-oxopentanoic acid allyl ester can be prepared from the compound Example 1 and diallyl carbonate.
- reaction is mixed with 25 ml of 2N NaOH and stirred at 40 ° C for 2 h. After the saponification, neutralization is carried out with phosphoric acid (85%) (pH 7) and the solution is heated to 80 ° C. for 30 min with evolution of CO2
- the mixture is neutralized with phosphoric acid (85%) (pH 7) and the solution is heated to 80 ° C. for 30 minutes (CO 2 evolution). After cooling, the mixture is extracted with methyl tert-methyl ether and the product is chromatographed on silica gel. 5.64 g (97% of theory) of product are obtained.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10326195A DE10326195A1 (en) | 2003-06-07 | 2003-06-07 | Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for the synthesis of epothilones and derivatives and processes for the preparation of these esters |
| PCT/EP2004/006057 WO2004108697A1 (en) | 2003-06-07 | 2004-06-05 | Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for synthesizing epothilones and derivatives derivatives, and methods for producing these esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1631563A1 true EP1631563A1 (en) | 2006-03-08 |
Family
ID=33482767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04739609A Withdrawn EP1631563A1 (en) | 2003-06-07 | 2004-06-05 | Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for synthesizing epothilones and derivatives derivatives, and methods for producing these esters |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7595418B2 (en) |
| EP (1) | EP1631563A1 (en) |
| JP (1) | JP2006527180A (en) |
| DE (1) | DE10326195A1 (en) |
| WO (1) | WO2004108697A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546113A (en) * | 1983-04-14 | 1985-10-08 | Pfizer Inc. | Antiprotozoal diamidines |
| US5211412A (en) * | 1992-01-27 | 1993-05-18 | Sabel James M | Steering linkage grease cup retainer apparatus |
| US6211412B1 (en) | 1999-03-29 | 2001-04-03 | The University Of Kansas | Synthesis of epothilones |
| DE10041470A1 (en) * | 2000-08-18 | 2002-02-28 | Schering Ag | New 6-substituted 12,13-(cyclopropyl or azacyclopropyl)-epothilone derivatives, useful as cell division regulators for treating e.g. malignant tumors, psoriasis or arthritis |
| DE10138348A1 (en) * | 2001-08-03 | 2003-02-27 | Schering Ag | Protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and methods of preparation and use |
| US6933385B2 (en) * | 2001-08-03 | 2005-08-23 | Schering Ag | Protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and process for the production and the use |
| DE10164592A1 (en) * | 2001-12-21 | 2003-07-03 | Schering Ag | C1-C6 epothilone fragments and process for the preparation of C1-C6 fragments of epothilones and their derivatives |
-
2003
- 2003-06-07 DE DE10326195A patent/DE10326195A1/en not_active Withdrawn
-
2004
- 2004-06-05 JP JP2006508280A patent/JP2006527180A/en active Pending
- 2004-06-05 US US10/559,389 patent/US7595418B2/en not_active Expired - Fee Related
- 2004-06-05 WO PCT/EP2004/006057 patent/WO2004108697A1/en not_active Ceased
- 2004-06-05 EP EP04739609A patent/EP1631563A1/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004108697A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080015366A1 (en) | 2008-01-17 |
| JP2006527180A (en) | 2006-11-30 |
| DE10326195A1 (en) | 2004-12-23 |
| WO2004108697A1 (en) | 2004-12-16 |
| US7595418B2 (en) | 2009-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0319847B1 (en) | Method for the preparation of optically active 3-desmethylmevalonic acid derivatives and intermediate compounds | |
| EP0373423B1 (en) | Substituted 2-pyridones and pyride-2-thiones, process for their preparation and their use in medicine | |
| DE60206365T2 (en) | PROCESS FOR THE ENANTIOSELECTIVE SYNTHESIS OF AZETIDINONE INTERMEDIATE PRODUCTS | |
| DE69612086T2 (en) | METHOD FOR PRODUCING (+) COMPACTIN AND (+) MEVINOLIN DERIVATIVES WITH BETA-HYDROXY-DELTA-LACTONE RESIDUES | |
| DE19645361A1 (en) | Production of epothilone compounds with taxol-like activity | |
| EP0603649B1 (en) | Substituted 4-phenyl-pyridones and 4-phenyl-2-alkoxypyridines as HMG-CoA reductase inhibitors | |
| DE69223603T2 (en) | OPTICALLY ACTIVE INTERMEDIATE PRODUCT AND THEIR PRODUCTION | |
| EP0189577A2 (en) | Process for the preparation of oxetanones | |
| DE68908440T2 (en) | Synthesis of trichostatin. | |
| EP1682527B1 (en) | Method for the production of statins | |
| DE60100238T2 (en) | Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-2H-pyran-2-one | |
| EP1412323B1 (en) | Protected 3,5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and derivatives and method for the production and use thereof | |
| EP0391185B1 (en) | Substituted 1,8-naphthyridines | |
| DE1958600A1 (en) | New isoxazole derivatives and their production | |
| EP0254685B1 (en) | Complexes with optically active sugar ligands, process for their preparation and their use | |
| WO2003053949A1 (en) | C1-c6 fragments of epothilones and method for producing such fragments and the derivatives thereof | |
| DE60222244T2 (en) | PROCESS FOR PREPARING INTERCONNECTIONS IN THE MANUFACTURE OF DISCODERMOLID AND DISCODERMOLID ANALOGUE | |
| EP0411268B1 (en) | Dibenzo(1,5)dioxocin-5-on derivatives, their use in medicines and process for their preparation | |
| DE3525256A1 (en) | NAPHTHYLANALOGS OF MEVALONOLACTONES AND THEIR DERIVATIVES, METHOD FOR THE PRODUCTION AND THEIR USE | |
| EP1631563A1 (en) | Protected 5,7-dihydroxy-4,4-dimethyl-3-oxoheptanoic acid esters and 5,7-dihydroxy-2-alkyl-4,4-dimethyl-3-oxoheptanoic acid esters for synthesizing epothilones and derivatives derivatives, and methods for producing these esters | |
| DE10138348A1 (en) | Protected 3,5-dihydroxy-2,2-dimethyl-valeroamides for the synthesis of epothilones and derivatives and methods of preparation and use | |
| DE69104681T2 (en) | Optically active 7-substituted-3,5-difunctionalized 6-heptenoic acid esters. | |
| EP1888600A2 (en) | Method for the production of statins | |
| DE60222574T2 (en) | METHOD FOR PRODUCING A BETA-KETOESTER COMPOUND | |
| DE69403412T2 (en) | A process for producing a derivative of a 5-hydroxy-3-oxo ester and an optically active compound thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20051013 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PLATZEK, JOHANNES Owner name: WESTERMANN, JUERGEN Owner name: BAYER SCHERING PHARMA AG Owner name: PETROV, ORLIN |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BAYER SCHERING PHARMA AKTIENGESELLSCHAFT Owner name: PETROV, ORLIN Owner name: PLATZEK, JOHANNES Owner name: WESTERMANN, JUERGEN |
|
| 17Q | First examination report despatched |
Effective date: 20070716 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: PLATZEK, JOHANNES Owner name: WESTERMANN, JUERGEN Owner name: PETROV, ORLIN Owner name: BAYER PHARMA AKTIENGESELLSCHAFT |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120101 |