WO1999052930A1 - VERFAHREN ZUR HERSTELLUNG VON 4,4-DIMETHYL-5α-CHOLESTA-8,14,24-TRIEN-3β-OL UND ZWISCHENPRODUKTE IM VERFAHREN (I) - Google Patents
VERFAHREN ZUR HERSTELLUNG VON 4,4-DIMETHYL-5α-CHOLESTA-8,14,24-TRIEN-3β-OL UND ZWISCHENPRODUKTE IM VERFAHREN (I) Download PDFInfo
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- WO1999052930A1 WO1999052930A1 PCT/DE1999/001002 DE9901002W WO9952930A1 WO 1999052930 A1 WO1999052930 A1 WO 1999052930A1 DE 9901002 W DE9901002 W DE 9901002W WO 9952930 A1 WO9952930 A1 WO 9952930A1
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- WO
- WIPO (PCT)
- Prior art keywords
- general formula
- compounds
- hydrogen
- dimethyl
- esters
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- LFQXEZVYNCBVDO-PBJLWWPKSA-N 4,4-dimethyl-5alpha-cholesta-8,14,24-trien-3beta-ol Chemical compound C([C@@]12C)C[C@H](O)C(C)(C)[C@@H]1CCC1=C2CC[C@]2(C)[C@@H]([C@@H](CCC=C(C)C)C)CC=C21 LFQXEZVYNCBVDO-PBJLWWPKSA-N 0.000 title claims description 23
- 239000013067 intermediate product Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 150000001875 compounds Chemical class 0.000 claims abstract description 75
- 229910052739 hydrogen Inorganic materials 0.000 claims description 41
- -1 aromatic carboxylic acids Chemical class 0.000 claims description 29
- 239000001257 hydrogen Substances 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 150000002148 esters Chemical class 0.000 claims description 20
- 239000002253 acid Substances 0.000 claims description 18
- 125000006239 protecting group Chemical group 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 14
- 125000001931 aliphatic group Chemical group 0.000 claims description 13
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 12
- 238000006317 isomerization reaction Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 9
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 8
- 230000029936 alkylation Effects 0.000 claims description 7
- 238000005804 alkylation reaction Methods 0.000 claims description 7
- 230000002829 reductive effect Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 125000004185 ester group Chemical group 0.000 claims description 3
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 20
- 125000000217 alkyl group Chemical group 0.000 claims 11
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims 9
- 238000003776 cleavage reaction Methods 0.000 claims 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims 1
- 239000012022 methylating agents Substances 0.000 claims 1
- 230000007017 scission Effects 0.000 claims 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 45
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 43
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 34
- 239000000203 mixture Substances 0.000 description 34
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 33
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 22
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 22
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 18
- 239000002904 solvent Substances 0.000 description 17
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 14
- 150000004702 methyl esters Chemical class 0.000 description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 12
- 229910052938 sodium sulfate Inorganic materials 0.000 description 12
- 235000011152 sodium sulphate Nutrition 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 10
- 238000001914 filtration Methods 0.000 description 10
- 239000000741 silica gel Substances 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 9
- 239000012074 organic phase Substances 0.000 description 9
- 239000002585 base Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- 238000005481 NMR spectroscopy Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 4
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- 230000031709 bromination Effects 0.000 description 4
- 238000005893 bromination reaction Methods 0.000 description 4
- 230000032050 esterification Effects 0.000 description 4
- 238000005886 esterification reaction Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000012279 sodium borohydride Substances 0.000 description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 4
- GYZXREZVEDFMNG-UHFFFAOYSA-N 5-iodo-2-methylpent-2-ene Chemical compound CC(C)=CCCI GYZXREZVEDFMNG-UHFFFAOYSA-N 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 3
- 239000000010 aprotic solvent Substances 0.000 description 3
- 244000309464 bull Species 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 150000001993 dienes Chemical class 0.000 description 3
- 150000002170 ethers Chemical class 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 239000000543 intermediate Substances 0.000 description 3
- 239000012280 lithium aluminium hydride Substances 0.000 description 3
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910000033 sodium borohydride Inorganic materials 0.000 description 3
- 239000011877 solvent mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- MJVAVZPDRWSRRC-UHFFFAOYSA-N Menadione Chemical compound C1=CC=C2C(=O)C(C)=CC(=O)C2=C1 MJVAVZPDRWSRRC-UHFFFAOYSA-N 0.000 description 2
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 238000006036 Oppenauer oxidation reaction Methods 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002168 alkylating agent Substances 0.000 description 2
- 229940100198 alkylating agent Drugs 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- DCFKHNIGBAHNSS-UHFFFAOYSA-N chloro(triethyl)silane Chemical compound CC[Si](Cl)(CC)CC DCFKHNIGBAHNSS-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- FMGSKLZLMKYGDP-USOAJAOKSA-N dehydroepiandrosterone Chemical compound C1[C@@H](O)CC[C@]2(C)[C@H]3CC[C@](C)(C(CC4)=O)[C@@H]4[C@@H]3CC=C21 FMGSKLZLMKYGDP-USOAJAOKSA-N 0.000 description 2
- 229940043279 diisopropylamine Drugs 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 2
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 2
- TZIHFWKZFHZASV-UHFFFAOYSA-N methyl formate Chemical compound COC=O TZIHFWKZFHZASV-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 2
- NCMZQTLCXHGLOK-ZKHIMWLXSA-N prasterone acetate Chemical compound C([C@@H]12)C[C@]3(C)C(=O)CC[C@H]3[C@@H]1CC=C1[C@]2(C)CC[C@H](OC(=O)C)C1 NCMZQTLCXHGLOK-ZKHIMWLXSA-N 0.000 description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 2
- SMUQFGGVLNAIOZ-UHFFFAOYSA-N quinaldine Chemical compound C1=CC=CC2=NC(C)=CC=C21 SMUQFGGVLNAIOZ-UHFFFAOYSA-N 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 150000003459 sulfonic acid esters Chemical class 0.000 description 2
- 150000003460 sulfonic acids Chemical class 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 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
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 2
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- BQPPJGMMIYJVBR-UHFFFAOYSA-N (10S)-3c-Acetoxy-4.4.10r.13c.14t-pentamethyl-17c-((R)-1.5-dimethyl-hexen-(4)-yl)-(5tH)-Delta8-tetradecahydro-1H-cyclopenta[a]phenanthren Natural products CC12CCC(OC(C)=O)C(C)(C)C1CCC1=C2CCC2(C)C(C(CCC=C(C)C)C)CCC21C BQPPJGMMIYJVBR-UHFFFAOYSA-N 0.000 description 1
- OILXMJHPFNGGTO-UHFFFAOYSA-N (22E)-(24xi)-24-methylcholesta-5,22-dien-3beta-ol Natural products C1C=C2CC(O)CCC2(C)C2C1C1CCC(C(C)C=CC(C)C(C)C)C1(C)CC2 OILXMJHPFNGGTO-UHFFFAOYSA-N 0.000 description 1
- RQOCXCFLRBRBCS-UHFFFAOYSA-N (22E)-cholesta-5,7,22-trien-3beta-ol Natural products C1C(O)CCC2(C)C(CCC3(C(C(C)C=CCC(C)C)CCC33)C)C3=CC=C21 RQOCXCFLRBRBCS-UHFFFAOYSA-N 0.000 description 1
- CHGIKSSZNBCNDW-UHFFFAOYSA-N (3beta,5alpha)-4,4-Dimethylcholesta-8,24-dien-3-ol Natural products CC12CCC(O)C(C)(C)C1CCC1=C2CCC2(C)C(C(CCC=C(C)C)C)CCC21 CHGIKSSZNBCNDW-UHFFFAOYSA-N 0.000 description 1
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- 102000009878 3-Hydroxysteroid Dehydrogenases Human genes 0.000 description 1
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- FKKLUOCEIANSFL-UHFFFAOYSA-N 4-methylpent-3-en-1-ol Chemical compound CC(C)=CCCO FKKLUOCEIANSFL-UHFFFAOYSA-N 0.000 description 1
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- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- UCTLRSWJYQTBFZ-UHFFFAOYSA-N Dehydrocholesterol Natural products C1C(O)CCC2(C)C(CCC3(C(C(C)CCCC(C)C)CCC33)C)C3=CC=C21 UCTLRSWJYQTBFZ-UHFFFAOYSA-N 0.000 description 1
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- 229910010199 LiAl Inorganic materials 0.000 description 1
- 239000012448 Lithium borohydride Substances 0.000 description 1
- CAHGCLMLTWQZNJ-UHFFFAOYSA-N Nerifoliol Natural products CC12CCC(O)C(C)(C)C1CCC1=C2CCC2(C)C(C(CCC=C(C)C)C)CCC21C CAHGCLMLTWQZNJ-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910021604 Rhodium(III) chloride Inorganic materials 0.000 description 1
- 101000744001 Ruminococcus gnavus (strain ATCC 29149 / VPI C7-9) 3beta-hydroxysteroid dehydrogenase Proteins 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 1
- OKWJDOQNMJARTI-SDBSVMQESA-N [(2r)-2-[(3s,5r,10s,13r,17r)-3-[tert-butyl(dimethyl)silyl]oxy-4,4,10,13-tetramethyl-1,2,3,5,6,7,11,12,16,17-decahydrocyclopenta[a]phenanthren-17-yl]-6-methylhept-5-enyl] methanesulfonate Chemical compound C([C@@]12C)C[C@H](O[Si](C)(C)C(C)(C)C)C(C)(C)[C@@H]1CCC1=C2CC[C@]2(C)[C@@H]([C@H](COS(C)(=O)=O)CCC=C(C)C)CC=C21 OKWJDOQNMJARTI-SDBSVMQESA-N 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 230000002152 alkylating effect Effects 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- HOPRXXXSABQWAV-UHFFFAOYSA-N anhydrous collidine Natural products CC1=CC=NC(C)=C1C HOPRXXXSABQWAV-UHFFFAOYSA-N 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- SIPUZPBQZHNSDW-UHFFFAOYSA-N bis(2-methylpropyl)aluminum Chemical compound CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 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
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- UCTLRSWJYQTBFZ-DDPQNLDTSA-N cholesta-5,7-dien-3beta-ol Chemical compound C1[C@@H](O)CC[C@]2(C)[C@@H](CC[C@@]3([C@@H]([C@H](C)CCCC(C)C)CC[C@H]33)C)C3=CC=C21 UCTLRSWJYQTBFZ-DDPQNLDTSA-N 0.000 description 1
- UTBIMNXEDGNJFE-UHFFFAOYSA-N collidine Natural products CC1=CC=C(C)C(C)=N1 UTBIMNXEDGNJFE-UHFFFAOYSA-N 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006114 decarboxylation reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000007269 dehydrobromination reaction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- QBSJHOGDIUQWTH-UHFFFAOYSA-N dihydrolanosterol Natural products CC(C)CCCC(C)C1CCC2(C)C3=C(CCC12C)C4(C)CCC(C)(O)C(C)(C)C4CC3 QBSJHOGDIUQWTH-UHFFFAOYSA-N 0.000 description 1
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 description 1
- VAYGXNSJCAHWJZ-UHFFFAOYSA-N dimethyl sulfate Chemical compound COS(=O)(=O)OC VAYGXNSJCAHWJZ-UHFFFAOYSA-N 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- DNVPQKQSNYMLRS-SOWFXMKYSA-N ergosterol Chemical compound C1[C@@H](O)CC[C@]2(C)[C@H](CC[C@]3([C@H]([C@H](C)/C=C/[C@@H](C)C(C)C)CC[C@H]33)C)C3=CC=C21 DNVPQKQSNYMLRS-SOWFXMKYSA-N 0.000 description 1
- DNVPQKQSNYMLRS-APGDWVJJSA-N ergosterol group Chemical group [C@@H]1(CC[C@H]2C3=CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)[C@H](C)\C=C\[C@H](C)C(C)C DNVPQKQSNYMLRS-APGDWVJJSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 210000001733 follicular fluid Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- 230000003054 hormonal effect Effects 0.000 description 1
- 231100000508 hormonal effect Toxicity 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- CAHGCLMLTWQZNJ-RGEKOYMOSA-N lanosterol Chemical compound C([C@]12C)C[C@@H](O)C(C)(C)[C@H]1CCC1=C2CC[C@]2(C)[C@H]([C@H](CCC=C(C)C)C)CC[C@@]21C CAHGCLMLTWQZNJ-RGEKOYMOSA-N 0.000 description 1
- 229940058690 lanosterol Drugs 0.000 description 1
- 230000021121 meiosis Effects 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003138 primary alcohols Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 150000004819 silanols Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- WRIKHQLVHPKCJU-UHFFFAOYSA-N sodium bis(trimethylsilyl)amide Chemical compound C[Si](C)(C)N([Na])[Si](C)(C)C WRIKHQLVHPKCJU-UHFFFAOYSA-N 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000003637 steroidlike Effects 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000003458 sulfonic acid derivatives Chemical class 0.000 description 1
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 125000004665 trialkylsilyl group Chemical group 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J9/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J51/00—Normal steroids with unmodified cyclopenta(a)hydrophenanthrene skeleton not provided for in groups C07J1/00 - C07J43/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
- C07J7/008—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms substituted in position 21
- C07J7/0095—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms substituted in position 21 carbon in position 21 is part of carboxylic group
Definitions
- the invention relates to processes for the preparation of 4,4-dimethyl-5 ⁇ -cholesta-8, 14,24-trien-3ß-ol (1) and intermediates in the process
- the object of this invention is new methods for the synthesis of FF-MAS.
- This invention also relates to the new, previously unknown compounds which are run through in the course of the syntheses and which, per se or derivatized, can be used as starting materials for the synthesis of other target molecules, -2-
- the compound mentioned here as the starting material is easily accessible in various ways from commercially available steroids.
- the representation of a compound of formula 2 with R ⁇ CH3 in a 3-step sequence from 3 ⁇ -hydroxyandrost-5-en-17-one (CAS registry number 53-43-0; 571-35-7 etc.) via Horner -Wittig (e.g. Synth. Commun. 1977, 7, 215), reduction of the resulting 17 double bond (e.g. Synthesis 1996, 455) and subsequent Oppenauer oxidation (e.g. Helv. Chim. Acta 1939, 22, 1178 and 1184).
- R n compounds of the formula 2 can be varied by standard methods. This can be done by using others
- R * can therefore mean hydrogen, methyl, ethyl, propyl, isopropyl, butyl and the corresponding butyl isomers, pentyl and -3-
- a compound of formula 2 is reacted in the presence of bases such as the alkali metal salts of lower alcohols, but preferably potassium tert-butylate, with an alkylating agent such as dimethyl sulfate, dimethyl carbonate or else methyl iodide in a solvent or solvent mixture.
- bases such as the alkali metal salts of lower alcohols, but preferably potassium tert-butylate
- an alkylating agent such as dimethyl sulfate, dimethyl carbonate or else methyl iodide in a solvent or solvent mixture.
- Lower, preferably tertiary alcohols and ethers for example methyl tertiary butyl ether or tetrahydrofuran and mixtures thereof, can be used as solvents. Preference is given to using tertiary butanol or a mixture of tertiary butanol and tetrahydrofuran.
- the reaction is carried out in a temperature range from 0 ° C. to 65 ° C., but preferably in the temperature range from 15 ° C. to 50 ° C.
- BH3 complexes e.g. with tertiary butylamine or
- braked lithium aluminum hydrides eg LiAl (O t Bu) 3H
- microorganisms such as baker's yeast or enzymes, for example 3 ⁇ -hydroxysteroid dehydrogenase, can also be used.
- Suitable protective groups are, for example, esters of aliphatic and aromatic carboxylic acids, for example acetic and benzoic acid esters, acetal protective groups such as tetrahydropyranyl, methoxymethyl or methoxyethoxymethyl ether, but -4-
- ether protecting groups for example silyl ethers such as trimethylsilyl, triethylsilyl or triisopropylsilyl; Triphenylsilyl; Dimethyl (l, l-dimethylethyl) silyl ether.
- reaction conditions and reaction temperatures vary depending on the desired protective group.
- the respective protective group is introduced by methods known per se to the person skilled in the art.
- An example is the esterification of a compound of formula 4 with acetyl chloride in the presence of a base such as triethylamine or pyridine with or without the addition of an inert solvent, for example
- a silyl protective group is preferably introduced by reacting a compound of the formula 4 with a silyl halide, but preferably dimethyl (l, l-dimethylethyl) silyl chloride or triethylsilyl chloride in the presence of a base, for example imidazole, in a suitable solvent such as dimethylformamide in one
- the 7,8 double bond can be introduced into a compound of the formula 5 ( ⁇ 6) in a two-stage process.
- brominated to the 5,6 double bond in position 7 is brominated and then a compound of formula 6 is obtained by eliminating hydrogen bromide.
- the bromine compound does not need to be isolated, but can usually be used immediately in the next step.
- the bromination is carried out according to processes known per se.
- N-bromosuccinimide can be used in a suitable solvent, such as benzene, lower alkanes or halogenated hydrocarbons such as carbon tetrachloride.
- the reaction can be carried out with the addition of a radical initiator, for example
- Solvents other than those previously mentioned can also be used for the bromination step, for example methyl formate (for example: Angew. Chem. 1980, 92, 471).
- Various reagents can be used for the elimination of hydrogen bromide; nitrogen bases such as quinaldine or collidine are preferred, but also other reagents such as trimethyl phosphite.
- the reaction is carried out in suitable solvents, for example in an aromatic hydrocarbon such as xylene in a temperature range between 70 ° C. and 145 ° C. (see, for example: Helv. Chim. Acta 1973, 56, 1708; J. Org. Chem. 1951, 16 , 1126: J. Org. Chem. 1982, 47, 2536).
- the reaction of a compound of formula 5 to a compound of formula 6 can also be carried out by direct dehydrogenation in one reaction step.
- Quinones for example 2-methyl-1,4-naphthoquinone (Recl. Trav. Chim. Pays-Bas 1940, 59, 454) or 1,4-benzoquinone (J. Am. Chem. Soc. 1946, 68, 738) can be used.
- preference is given to the two-stage process, consisting of a bromination step and a subsequent dehydrobromination step.
- the isomerization of a compound of formula 6 ( ⁇ 7) can be carried out by various methods, for example hydrochloric acid in a solvent mixture consisting of ethanol, benzene and water can be used (J. Org. Chem. 1986, 51, 4047). Ethanol and methanol are also described as the sole solvents for such diene isomerizations, hydrochloric acid also being used (for example: J. Am. Chem. Soc 1953, 75, 4404; Tet. Lett. 1967, 3699). If one works according to one of the methods described above, compounds of the formula 7 are obtained in which ⁇ is hydrogen and R * is ethyl or methyl, depending on the alcohol used.
- HCl gas in solvents such as chloroform or acetic acid is also described (e.g .: J. Org. Chem. 1988, 53, 1563; J. Chem. Soc. 1962, 2917).
- isomerization can also be carried out using other acids and / or solvents, for example with p-toluenesulfonic acid in benzene ⁇ chem. Pharm. Bull. 1988, 36, 2724).
- the isomerization of the 5,7-diene can also be carried out with sulfuric acid in solvents such as dioxane, primary alcohols or their mixtures with and without the addition of aromatic hydrocarbons such as toluene at elevated temperature; the preferred temperature range here is from 70 ° C. to 120 ° C, where appropriate working in a pressure vessel.
- solvents such as dioxane, primary alcohols or their mixtures with and without the addition of aromatic hydrocarbons such as toluene at elevated temperature; the preferred temperature range here is from 70 ° C. to 120 ° C, where appropriate working in a pressure vessel.
- R ⁇ is hydrogen
- Rl corresponds to the hydrocarbon part of an alcohol which may be used, without R n generally remains unchanged.
- the desired isomerization can also be carried out in sulfur dioxide at elevated temperature in the pressure vessel (J. Chem. Soc. 1954, 814).
- transition metal catalysts such as rhodium trichloride ⁇ J. Chem. Soc. Per
- R * is methyl or ethyl and R ⁇ is hydrogen or a protective group such as trialkylsilyl, tetrahydropyranyl, methoxymethyl or approximately
- Methoxyethoxymethyl mean. If appropriate, the desired protective group is introduced before the alkylation by methods known per se to the person skilled in the art.
- methyl or ethyl ester is predominantly used here.
- a number of alkylations with complex building blocks are also described (see for example Bull. Soc Chim. Belg.
- the alkylating reagent used here is 5-bromo-2-methyl-2-pentene or 5-iodo-2-methyl-2-pentene (for example: Synthesis 1979, 37) or a sulfonic acid ester, preferably methanesulfonic acid or j- Toluenesulfonic acid ester of the corresponding carbinol 4-methyl-3-pentenol used.
- Various bases can be used to deprotonate a compound of formula 7. Potassium and sodium hexamethyl disilazide ⁇ Tet. Lett. 1996, 37, 7473; Chem. Comm. 1997, 8, 765) and also other nitrogen bases, for example lithium diisopropylamide (see, for example, J. Chem.
- lithium dialkylamide bases can also be used. However, lithium diisopropylamide is preferred.
- hexamethylphosphonic or hexamethylphosphoric acid triamide can be added to the reaction.
- Aprotic solvents preferably ethers such as diethyl ether or also tetrahydrofuran or their mixtures with hydrocarbons, e.g. B. hexane used. However, tetrahydrofuran with or without the addition of hexane is preferred here.
- the reaction is carried out in a temperature range from -78 ° C to room temperature, but preferably in the temperature range from -40 ° C to 10 ° C. -7-
- the ester group of a compound of formula 8 is reduced to the methyl group (compounds of general formula 11) in a multi-stage process.
- the reduction sequence usually consists of three steps.
- First the ester is reduced to an alcohol of formula 9.
- Lithium aluminum hydride or diisobutyl aluminum hydride in suitable aprotic solvents such as, for example, hydrocarbons, for example toluene, or ethers, for example tetrahydrofuran, or mixtures thereof, are preferably used as reducing agents here.
- the reactions are carried out in a temperature range from -78 ° C to 40 ° C, but preferably in the range from -40 ° C to 25 ° C.
- a compound of the formula 10 is further reduced.
- the choice of a suitable leaving group for the hydroxy function of a compound of formula 10 depends on the nature of the substituent R ⁇ . If R ⁇ is hydrogen, a reagent must be selected which ensures differentiation between the secondary hydroxyl group at C-3 and the primary hydroxyl group at C-21.
- Reactive sulfonic acid derivatives of sterically demanding sulfonic acids for example the anhydrides or acid halides of p-toluenesulfonic acid or 2,4,6-trimethylbenzenesulfonic acid, which differentiate between primary and secondary hydroxyl function, are particularly suitable for this.
- R ⁇ is one of the protective groups indicated, derivatives of other sulfonic acids, such as methanesulfonic acid chloride, can also be used. These esterifications are preferably carried out in the presence of a base such as pyridine or aliphatic tertiary amines, for example triethylamine, which can be used as the sole solvent.
- the reaction can also be carried out with the addition of a solvent such as dichloromethane. Usually a temperature range of 0 ° C to 70 ° C is used.
- the reduction of a compound of formula 10 can be effected with the same reagents and under the same reaction conditions as previously described for the reduction of the ester.
- Lithium triethyl borohydride may also be mentioned here as a reducing agent, which has proven particularly useful for the reductive removal of sulfonic acid esters. Examples of such multistage conversions of an ester into a methyl group can be found in the literature in a variety of ways, including in: Tet. Lett. 1987, 28, 1685; J. Am. Chem. Soc. 1995, 777, 1849 etc.
- R ⁇ in the meaning of hydrogen, FF-MAS (1) is obtained directly.
- R ⁇ represents a protective group (see above)
- a compound of the formula 11 is obtained, from which the protective group is split off by methods familiar to the person skilled in the art.
- step b) 74.7 g of the compound described in step b) are mixed with 40.8 g of imidazole and 60.3 g of tert-butyldimethylsilyl chloride in 1.25 liters of N, N-dimethylformamide
- step c) 4,4-Dimethyl-3ß - [[dimethyl (l, l-dimethylethyl) silyl] oxy] pregna-5,7-diene-21-acidic acid methyl ester: 93 g of the compound described in step c) are mixed with 32.6 gl, 3-dibromo-5,5-dimethylhydantoin boiled in a mixture of 0.75 liters of n-hexane and benzene for 20 minutes. After cooling, the product is filtered off with suction, the filtrate is concentrated and the evaporation residue is boiled for one hour with 45 ml of trimethyl phosphite in 0.9 liters of xylene.
- step d) 4,4-Dimethyl-3ß-hydroxypregna-8, 14-dien-21-acidic acid methyl ester 300 g of the compound described in Example 1, step d) are in a mixture of 2.7 liters of methanol and 0.4 liters of concentrated hydrochloric acid Cooked for 20 hours. After cooling in an ice bath, the crystals are filtered off with suction, the filtrate is partitioned between dichloromethane and water and the organic phase is washed neutral with water. After washing with saturated sodium chloride solution, drying over sodium sulfate and filtration, the mixture is concentrated and separated from silanols via a filter column. The crystals are washed with water and dried.
- step a) 92 g of the compound described in step a) are stirred for 18 hours at 70 ° C. with 0.75 liters of N, N-dimethylformamide, 51 g of tert-butyldimethylsilyl chloride and 27.8 g of imidazole. After cooling, it is poured onto 10 liters of ice-cold 0.5 molar aqueous hydrochloric acid and filtered. The filter cake is taken up in ethyl acetate, washed neutral with 1 normal sodium hydroxide solution, dried over sodium sulfate, filtered and concentrated.
- step f 2 g of the compound described in step f) are stirred in a mixture of 5 ml of 6 normal hydrochloric acid, 10 ml of ethanol and 30 ml of tetrahydrofuran at room temperature for 24 hours. It is then partitioned between ethyl acetate and water. After washing the organic phase with 1 normal sodium hydroxide solution, water and saturated sodium chloride solution, drying over sodium sulfate and filtration, the evaporation residue is chromatographed on silica gel with a mixture of n-hexane and ethyl acetate. 1.45 g of 4,4-dimethyl-5 ⁇ -cholesta-8, 14,24-trien-3ß-ol are obtained.
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- Chemical & Material Sciences (AREA)
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- General Health & Medical Sciences (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59907019T DE59907019D1 (de) | 1998-04-09 | 1999-03-26 | Verfahren zur herstellung von 4,4-dimethyl-5 alpha-cholesta-8,14,24-trien-3 beta-ol und zwischenprodukte im verfahren (i) |
AT99924752T ATE250078T1 (de) | 1998-04-09 | 1999-03-26 | Verfahren zur herstellung von 4,4-dimethyl-5 alpha-cholesta-8,14,24-trien-3 beta-ol und zwischenprodukte im verfahren (i) |
AU41321/99A AU4132199A (en) | 1998-04-09 | 1999-03-26 | Method for producing 4,4-dimethyl-5alpha-cholesta-8,14,24-triene-3beta-ol and intermediate products obtained by said method |
EP99924752A EP1070082B1 (de) | 1998-04-09 | 1999-03-26 | Verfahren zur herstellung von 4,4-dimethyl-5 alpha-cholesta-8,14,24-trien-3 beta-ol und zwischenprodukte im verfahren (i) |
CA002327714A CA2327714C (en) | 1998-04-09 | 1999-03-26 | Preparation of 4,4-dimethyl-5.alpha.-cholesta-8,14,24-triene-3.beta.-o1 and novel intermediate compounds |
DK99924752T DK1070082T3 (da) | 1998-04-09 | 1999-03-26 | Fremgangsmåde til fremstilling af 4,4-dimethyl-5alfa-cholesta-8,14,24-trien-3beta-ol og mellemprodukter i fremgangsmåden (I) |
JP2000543486A JP2002511481A (ja) | 1998-04-09 | 1999-03-26 | 4,4−ジメチル−5α−コレスタ−8,14,24−トリエン−3β−オールの製造方法及び方法(I)における中間生成物 |
NO20005058A NO317297B1 (no) | 1998-04-09 | 2000-10-06 | Fremgangsmate for fremstilling av 4,4-dimetyl-5<alfa>-kolesta-8,14,24-trien-3<beta>-ol og mellomprodukter erholdt ved fremgangsmaten |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19817520A DE19817520C1 (de) | 1998-04-09 | 1998-04-09 | Verfahren zur Herstellung von 4,4-Dimethyl-5alpha-cholesta-8,14,24,-trien-3beta-ol und Zwischenprodukte im Verfahren (1) |
DE19823677.8 | 1998-05-20 | ||
DE19823677A DE19823677A1 (de) | 1998-04-09 | 1998-05-20 | Verfahren zur Herstellung von 4,4-Dimethyl-5alpha-cholesta-8,14,24-trien-3beta-ol und Zwischenprodukte im Verfahren (I) |
DE19817520.5 | 1998-05-20 |
Publications (1)
Publication Number | Publication Date |
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WO1999052930A1 true WO1999052930A1 (de) | 1999-10-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE1999/001002 WO1999052930A1 (de) | 1998-04-09 | 1999-03-26 | VERFAHREN ZUR HERSTELLUNG VON 4,4-DIMETHYL-5α-CHOLESTA-8,14,24-TRIEN-3β-OL UND ZWISCHENPRODUKTE IM VERFAHREN (I) |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1070082B1 (de) |
JP (1) | JP2002511481A (de) |
KR (1) | KR100525139B1 (de) |
AT (1) | ATE250078T1 (de) |
AU (1) | AU4132199A (de) |
CA (1) | CA2327714C (de) |
DE (2) | DE19823677A1 (de) |
DK (1) | DK1070082T3 (de) |
ES (1) | ES2209441T3 (de) |
NO (1) | NO317297B1 (de) |
PT (1) | PT1070082E (de) |
WO (1) | WO1999052930A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000056758A1 (de) * | 1999-03-19 | 2000-09-28 | Schering Aktiengesellschaft | VERFAHREN ZUR HERSTELLUNG VON 4,4- DIMETHYL -3β- HYDROXYPREGNA -8,14-DIEN-21- CARBONSÄUREESTERN UND ZWISCHENPRODUKTE IM VERFAHREN |
-
1998
- 1998-05-20 DE DE19823677A patent/DE19823677A1/de not_active Withdrawn
-
1999
- 1999-03-26 DE DE59907019T patent/DE59907019D1/de not_active Expired - Fee Related
- 1999-03-26 KR KR10-2000-7011174A patent/KR100525139B1/ko not_active IP Right Cessation
- 1999-03-26 EP EP99924752A patent/EP1070082B1/de not_active Expired - Lifetime
- 1999-03-26 JP JP2000543486A patent/JP2002511481A/ja active Pending
- 1999-03-26 ES ES99924752T patent/ES2209441T3/es not_active Expired - Lifetime
- 1999-03-26 DK DK99924752T patent/DK1070082T3/da active
- 1999-03-26 PT PT99924752T patent/PT1070082E/pt unknown
- 1999-03-26 AT AT99924752T patent/ATE250078T1/de not_active IP Right Cessation
- 1999-03-26 AU AU41321/99A patent/AU4132199A/en not_active Abandoned
- 1999-03-26 WO PCT/DE1999/001002 patent/WO1999052930A1/de active IP Right Grant
- 1999-03-26 CA CA002327714A patent/CA2327714C/en not_active Expired - Fee Related
-
2000
- 2000-10-06 NO NO20005058A patent/NO317297B1/no unknown
Non-Patent Citations (6)
Title |
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DOLLE R E ET AL: "SYNTHESIS OF ZYMOSTEROL, FECOSTEROL, AND RELATED BIOSYNTHETIC STEROL INTERMEDIATES 1,2", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 111, no. 1, 4 January 1989 (1989-01-04), pages 278 - 284, XP000611665, ISSN: 0002-7863 * |
J. VAN DER EYCKEN ET AL: "24(R),25-Dihydroxycholesterol; An Attempt for Side Chain Stereocontrol via Iodolactonization", BULLETIN DES SOCIETES CHIMIQUES BELGES, vol. 95, no. 4, 1986, pages 289 - 292, XP002111487 * |
LETTRE, HANS ET AL: "Polyols derived from sterols and sterol derivatives. VI. Steroids containing structural units of ecdysone and the elatericins", LIEBIGS ANNALEN DER CHEMIE, vol. 758, 1972, WEINHEIM DE, pages 89 - 110, XP002111484 * |
R. B. WOODWARD ET AL: "The Synthesis of Lanosterol (Lanostadienol)", JOURNAL OF THE CHEMICAL SOCIETY., no. 3, March 1957 (1957-03-01), CHEMICAL SOCIETY. LETCHWORTH., GB, pages 1131 - 1144, XP002111485 * |
R. E. DOLLE ET AL: "Improved Preparation of (3.beta.,5.alpha.,14.alpha)-3-Hydroxy-14-methylcholest-7-en-15-one. Synthesis of Ergostenone and 20.alpha.-(Hydroxymethyl)pregnenone Analogues", JOURNAL OF ORGANIC CHEMISTRY., vol. 51, no. 21, 17 October 1986 (1986-10-17), AMERICAN CHEMICAL SOCIETY. EASTON., US, pages 4047 - 4053, XP002111486, ISSN: 0022-3263 * |
RUAN B ET AL: "An alternative synthesis of 4,4-Dimethyl-5alpha-cholesta-8,14,24 -trien-3beta-ol, an intermediate in sterol biosynthesis and a reported activator of meiosis and of nuclear orphan receptor LXRalpha", BIOORGANIC & MEDICINAL CHEMISTRY LETTERS, vol. 8, no. 3, 3 February 1998 (1998-02-03), pages 233-236, XP004136854, ISSN: 0960-894X * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000056758A1 (de) * | 1999-03-19 | 2000-09-28 | Schering Aktiengesellschaft | VERFAHREN ZUR HERSTELLUNG VON 4,4- DIMETHYL -3β- HYDROXYPREGNA -8,14-DIEN-21- CARBONSÄUREESTERN UND ZWISCHENPRODUKTE IM VERFAHREN |
US6653491B1 (en) | 1999-03-19 | 2003-11-25 | Schering Ag | Method for producing 4,4-dimethyl-3β-hydroxypregna-8, 14-diene-21-carboxylic acid esters and intermediate products obtained by said method |
Also Published As
Publication number | Publication date |
---|---|
CA2327714A1 (en) | 1999-10-21 |
CA2327714C (en) | 2008-12-16 |
KR20010042532A (ko) | 2001-05-25 |
DK1070082T3 (da) | 2004-01-26 |
DE19823677A1 (de) | 1999-11-25 |
ATE250078T1 (de) | 2003-10-15 |
KR100525139B1 (ko) | 2005-11-02 |
NO20005058L (no) | 2000-12-07 |
PT1070082E (pt) | 2004-02-27 |
ES2209441T3 (es) | 2004-06-16 |
EP1070082A1 (de) | 2001-01-24 |
DE59907019D1 (de) | 2003-10-23 |
JP2002511481A (ja) | 2002-04-16 |
AU4132199A (en) | 1999-11-01 |
NO20005058D0 (no) | 2000-10-06 |
NO317297B1 (no) | 2004-10-04 |
EP1070082B1 (de) | 2003-09-17 |
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