CN100345864C - 一种治疗呼吸道疾病的甾体药物的制备方法及其中间体 - Google Patents
一种治疗呼吸道疾病的甾体药物的制备方法及其中间体 Download PDFInfo
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- CN100345864C CN100345864C CNB2004100867323A CN200410086732A CN100345864C CN 100345864 C CN100345864 C CN 100345864C CN B2004100867323 A CNB2004100867323 A CN B2004100867323A CN 200410086732 A CN200410086732 A CN 200410086732A CN 100345864 C CN100345864 C CN 100345864C
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- methyl
- phenyl
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000003814 drug Substances 0.000 title abstract description 6
- 150000003431 steroids Chemical class 0.000 title abstract description 5
- 201000010099 disease Diseases 0.000 title 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 title 1
- 230000029058 respiratory gaseous exchange Effects 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 88
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000002378 acidificating effect Effects 0.000 claims abstract description 21
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 21
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 19
- KVFDZFBHBWTVID-UHFFFAOYSA-N cyclohexanecarbaldehyde Chemical compound O=CC1CCCCC1 KVFDZFBHBWTVID-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 239000001257 hydrogen Substances 0.000 claims abstract description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 44
- -1 isobutyl- Chemical group 0.000 claims description 24
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 20
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 20
- XEKOWRVHYACXOJ-UHFFFAOYSA-N ethyl acetate Substances CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 19
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 230000007062 hydrolysis Effects 0.000 claims description 15
- 238000006460 hydrolysis reaction Methods 0.000 claims description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 12
- 239000003960 organic solvent Substances 0.000 claims description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 10
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 10
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 10
- BUDQDWGNQVEFAC-UHFFFAOYSA-N Dihydropyran Chemical compound C1COC=CC1 BUDQDWGNQVEFAC-UHFFFAOYSA-N 0.000 claims description 9
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- 238000007127 saponification reaction Methods 0.000 claims description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 claims description 6
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 125000005466 alkylenyl group Chemical group 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- LSACYLWPPQLVSM-UHFFFAOYSA-N isobutyric acid anhydride Chemical compound CC(C)C(=O)OC(=O)C(C)C LSACYLWPPQLVSM-UHFFFAOYSA-N 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 5
- 150000002460 imidazoles Chemical class 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
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 5
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical group C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 claims description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 claims description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 3
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- GLUUGHFHXGJENI-UHFFFAOYSA-N diethylenediamine Natural products C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005903 acid hydrolysis reaction Methods 0.000 claims description 2
- 230000001476 alcoholic effect Effects 0.000 claims description 2
- 150000005826 halohydrocarbons Chemical group 0.000 claims description 2
- 229910000042 hydrogen bromide Inorganic materials 0.000 claims description 2
- 150000002576 ketones Chemical class 0.000 claims description 2
- 150000003053 piperidines Chemical class 0.000 claims description 2
- 238000006884 silylation reaction Methods 0.000 claims description 2
- DGMOBVGABMBZSB-UHFFFAOYSA-N 2-methylpropanoyl chloride Chemical compound CC(C)C(Cl)=O DGMOBVGABMBZSB-UHFFFAOYSA-N 0.000 claims 1
- 125000001309 chloro group Chemical group Cl* 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 2
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 208000023504 respiratory system disease Diseases 0.000 abstract 1
- 239000002585 base Substances 0.000 description 39
- 238000003756 stirring Methods 0.000 description 22
- 150000003527 tetrahydropyrans Chemical class 0.000 description 20
- 238000001953 recrystallisation Methods 0.000 description 17
- 229910052710 silicon Inorganic materials 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 239000010703 silicon Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- 238000005160 1H NMR spectroscopy Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 10
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 6
- 229960004756 ethanol Drugs 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000012043 crude product Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 238000004128 high performance liquid chromatography Methods 0.000 description 5
- 230000002194 synthesizing effect Effects 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Natural products O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000005046 Chlorosilane Substances 0.000 description 3
- 208000018569 Respiratory Tract disease Diseases 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 3
- 235000019439 ethyl acetate Nutrition 0.000 description 3
- 150000007530 organic bases Chemical class 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 229920005654 Sephadex Polymers 0.000 description 2
- 239000012507 Sephadex™ Substances 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000003810 ethyl acetate extraction Methods 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 230000000144 pharmacologic effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 description 2
- JSZOAYXJRCEYSX-UHFFFAOYSA-N 1-nitropropane Chemical compound CCC[N+]([O-])=O JSZOAYXJRCEYSX-UHFFFAOYSA-N 0.000 description 1
- ICGLPKIVTVWCFT-UHFFFAOYSA-N 4-methylbenzenesulfonohydrazide Chemical compound CC1=CC=C(S(=O)(=O)NN)C=C1 ICGLPKIVTVWCFT-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical group C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- VOVIALXJUBGFJZ-KWVAZRHASA-N Budesonide Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@@H]2[C@@H]1[C@@H]1C[C@H]3OC(CCC)O[C@@]3(C(=O)CO)[C@@]1(C)C[C@@H]2O VOVIALXJUBGFJZ-KWVAZRHASA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910004373 HOAc Inorganic materials 0.000 description 1
- AKQOBHZKBDHWQI-BZEFIUHZSA-N O[C@H]1C[C@@H](CCC1)N1C(C2(C3=C1N=C(N=C3)NC1=CC=C(C=C1)S(=O)(=O)NC([2H])([2H])[2H])CC2)=O Chemical compound O[C@H]1C[C@@H](CCC1)N1C(C2(C3=C1N=C(N=C3)NC1=CC=C(C=C1)S(=O)(=O)NC([2H])([2H])[2H])CC2)=O AKQOBHZKBDHWQI-BZEFIUHZSA-N 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 229960003328 benzoyl peroxide Drugs 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229960004436 budesonide Drugs 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229940127108 compound 5g Drugs 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 1
- 230000003637 steroidlike Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Steroid Compounds (AREA)
Abstract
Description
Claims (17)
Priority Applications (1)
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CNB2004100867323A CN100345864C (zh) | 2004-10-29 | 2004-10-29 | 一种治疗呼吸道疾病的甾体药物的制备方法及其中间体 |
Applications Claiming Priority (1)
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CNB2004100867323A CN100345864C (zh) | 2004-10-29 | 2004-10-29 | 一种治疗呼吸道疾病的甾体药物的制备方法及其中间体 |
Publications (2)
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CN1651454A CN1651454A (zh) | 2005-08-10 |
CN100345864C true CN100345864C (zh) | 2007-10-31 |
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CNB2004100867323A Expired - Fee Related CN100345864C (zh) | 2004-10-29 | 2004-10-29 | 一种治疗呼吸道疾病的甾体药物的制备方法及其中间体 |
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Families Citing this family (2)
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EP1869064A2 (en) * | 2005-11-02 | 2007-12-26 | Sicor, Inc. | Improved process for the preparation of ciclesonide |
CN106883283B (zh) * | 2015-12-15 | 2021-02-02 | 天津金耀集团有限公司 | 环索奈德一水合物及其晶型与制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5482934A (en) * | 1990-09-07 | 1996-01-09 | Especialidades Latinas Medicamentos Universales, S.A. (Elmu, S.A.) | Pregna-1,4-diene3,20-dione-16-17-acetal-21 esters, process for their preparation, composition, and methods for the treatment of inflammatory conditions |
WO1998009982A1 (en) * | 1996-09-03 | 1998-03-12 | Byk Gulden Lomberg Chemische Fabrik Gmbh | Process for r-epimer enrichment of 16,17-acetal derivatives of 21-acyloxy pregan-1,4-dien-11.beta.,16.alpha.,17.alpha.-triol-3,20-dione derivatives |
US5728826A (en) * | 1994-03-09 | 1998-03-17 | Byk Gulden Lomberg Chemische Fabrik Gmbh | Silyl Compounds and their use |
US5733901A (en) * | 1993-04-02 | 1998-03-31 | Byk Gulden Lomberg Chemische Fabrik Gmbh | Prednisolone derivatives |
WO2002038584A1 (en) * | 2000-11-10 | 2002-05-16 | Altana Pharma Ag | Process for the production of 16,17-[(cyclohexylmethylen)bis(oxy)]-11,21-dihydroxy-pregna-1,4-dien-3,20-dion or its 21-isobutyrat by transketalisation |
-
2004
- 2004-10-29 CN CNB2004100867323A patent/CN100345864C/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5482934A (en) * | 1990-09-07 | 1996-01-09 | Especialidades Latinas Medicamentos Universales, S.A. (Elmu, S.A.) | Pregna-1,4-diene3,20-dione-16-17-acetal-21 esters, process for their preparation, composition, and methods for the treatment of inflammatory conditions |
US5733901A (en) * | 1993-04-02 | 1998-03-31 | Byk Gulden Lomberg Chemische Fabrik Gmbh | Prednisolone derivatives |
US5728826A (en) * | 1994-03-09 | 1998-03-17 | Byk Gulden Lomberg Chemische Fabrik Gmbh | Silyl Compounds and their use |
WO1998009982A1 (en) * | 1996-09-03 | 1998-03-12 | Byk Gulden Lomberg Chemische Fabrik Gmbh | Process for r-epimer enrichment of 16,17-acetal derivatives of 21-acyloxy pregan-1,4-dien-11.beta.,16.alpha.,17.alpha.-triol-3,20-dione derivatives |
WO2002038584A1 (en) * | 2000-11-10 | 2002-05-16 | Altana Pharma Ag | Process for the production of 16,17-[(cyclohexylmethylen)bis(oxy)]-11,21-dihydroxy-pregna-1,4-dien-3,20-dion or its 21-isobutyrat by transketalisation |
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