WO1991002734A1 - Verfahren zur herstellung von d-(+)-biotin - Google Patents
Verfahren zur herstellung von d-(+)-biotin Download PDFInfo
- Publication number
- WO1991002734A1 WO1991002734A1 PCT/EP1990/001235 EP9001235W WO9102734A1 WO 1991002734 A1 WO1991002734 A1 WO 1991002734A1 EP 9001235 W EP9001235 W EP 9001235W WO 9102734 A1 WO9102734 A1 WO 9102734A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- formula
- meaning given
- compound
- group
- alkyl
- Prior art date
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- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 title claims abstract description 47
- 235000000638 D-biotin Nutrition 0.000 title claims abstract description 21
- 239000011665 D-biotin Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 32
- 125000003118 aryl group Chemical group 0.000 claims abstract description 15
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 8
- 125000001072 heteroaryl group Chemical group 0.000 claims abstract description 8
- 125000006239 protecting group Chemical group 0.000 claims abstract description 8
- 125000000547 substituted alkyl group Chemical group 0.000 claims abstract description 8
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims abstract description 7
- 125000004663 dialkyl amino group Chemical group 0.000 claims abstract description 7
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 6
- 125000002947 alkylene group Chemical group 0.000 claims abstract description 4
- 125000004474 heteroalkylene group Chemical group 0.000 claims abstract description 4
- -1 trialkylsilyl triflate Chemical compound 0.000 claims description 42
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 37
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 35
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 29
- 125000000217 alkyl group Chemical group 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 18
- FTVLMFQEYACZNP-UHFFFAOYSA-N trimethylsilyl trifluoromethanesulfonate Chemical group C[Si](C)(C)OS(=O)(=O)C(F)(F)F FTVLMFQEYACZNP-UHFFFAOYSA-N 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 17
- 150000001298 alcohols Chemical class 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 10
- WJRBRSLFGCUECM-UHFFFAOYSA-N hydantoin Chemical compound O=C1CNC(=O)N1 WJRBRSLFGCUECM-UHFFFAOYSA-N 0.000 claims description 10
- 229940091173 hydantoin Drugs 0.000 claims description 10
- 150000001615 biotins Chemical class 0.000 claims description 9
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims description 9
- 235000018417 cysteine Nutrition 0.000 claims description 9
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- SIPUZPBQZHNSDW-UHFFFAOYSA-N diisobutylaluminium hydride Substances CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 claims description 6
- 238000006266 etherification reaction Methods 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 239000002841 Lewis acid Substances 0.000 claims description 5
- 230000029936 alkylation Effects 0.000 claims description 5
- 238000005804 alkylation reaction Methods 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims description 5
- 239000012039 electrophile Substances 0.000 claims description 5
- 150000007517 lewis acids Chemical class 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 125000002619 bicyclic group Chemical group 0.000 claims description 4
- 229910052794 bromium Inorganic materials 0.000 claims description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 4
- 125000003342 alkenyl group Chemical group 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 2
- 125000005425 toluyl group Chemical group 0.000 claims description 2
- 125000004665 trialkylsilyl group Chemical group 0.000 claims description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims 2
- 239000012448 Lithium borohydride Substances 0.000 claims 1
- AZWXAPCAJCYGIA-UHFFFAOYSA-N bis(2-methylpropyl)alumane Chemical compound CC(C)C[AlH]CC(C)C AZWXAPCAJCYGIA-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
- 125000004448 alkyl carbonyl group Chemical group 0.000 abstract 1
- 125000005129 aryl carbonyl group Chemical group 0.000 abstract 1
- 125000006254 cycloalkyl carbonyl group Chemical group 0.000 abstract 1
- 239000013067 intermediate product Substances 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 36
- 239000000203 mixture Substances 0.000 description 30
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 27
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 27
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 18
- 239000002904 solvent Substances 0.000 description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 13
- 235000019439 ethyl acetate Nutrition 0.000 description 13
- 239000002585 base Substances 0.000 description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 9
- WDYVUKGVKRZQNM-UHFFFAOYSA-N 6-phosphonohexylphosphonic acid Chemical compound OP(O)(=O)CCCCCCP(O)(O)=O WDYVUKGVKRZQNM-UHFFFAOYSA-N 0.000 description 8
- 239000012442 inert solvent Substances 0.000 description 8
- 239000000543 intermediate Substances 0.000 description 8
- 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 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 7
- SCZNXLWKYFICFV-UHFFFAOYSA-N 1,2,3,4,5,7,8,9-octahydropyrido[1,2-b]diazepine Chemical compound C1CCCNN2CCCC=C21 SCZNXLWKYFICFV-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000003776 cleavage reaction Methods 0.000 description 6
- 150000002170 ethers Chemical class 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 150000007513 acids Chemical class 0.000 description 5
- 230000007017 scission Effects 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000007858 starting material Substances 0.000 description 5
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 4
- LEVWYRKDKASIDU-IMJSIDKUSA-N L-cystine Chemical compound [O-]C(=O)[C@@H]([NH3+])CSSC[C@H]([NH3+])C([O-])=O LEVWYRKDKASIDU-IMJSIDKUSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 4
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 4
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- KQIADDMXRMTWHZ-UHFFFAOYSA-N chloro-tri(propan-2-yl)silane Chemical compound CC(C)[Si](Cl)(C(C)C)C(C)C KQIADDMXRMTWHZ-UHFFFAOYSA-N 0.000 description 4
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229960003067 cystine Drugs 0.000 description 4
- QQFBQBDINHJDMN-UHFFFAOYSA-N ethyl 2-trimethylsilylacetate Chemical compound CCOC(=O)C[Si](C)(C)C QQFBQBDINHJDMN-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- NVIFVTYDZMXWGX-UHFFFAOYSA-N sodium metaborate Chemical compound [Na+].[O-]B=O NVIFVTYDZMXWGX-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 description 4
- LHJCZOXMCGQVDQ-UHFFFAOYSA-N tri(propan-2-yl)silyl trifluoromethanesulfonate Chemical compound CC(C)[Si](C(C)C)(C(C)C)OS(=O)(=O)C(F)(F)F LHJCZOXMCGQVDQ-UHFFFAOYSA-N 0.000 description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 3
- 239000004158 L-cystine Substances 0.000 description 3
- 235000019393 L-cystine Nutrition 0.000 description 3
- 239000012359 Methanesulfonyl chloride Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 125000004093 cyano group Chemical group *C#N 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 238000003818 flash chromatography Methods 0.000 description 3
- 150000004678 hydrides Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- QARBMVPHQWIHKH-UHFFFAOYSA-N methanesulfonyl chloride Chemical compound CS(Cl)(=O)=O QARBMVPHQWIHKH-UHFFFAOYSA-N 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 238000007363 ring formation reaction Methods 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 230000000707 stereoselective effect Effects 0.000 description 3
- 235000000346 sugar Nutrition 0.000 description 3
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- MTCFGRXMJLQNBG-REOHCLBHSA-N (2S)-2-Amino-3-hydroxypropansäure Chemical compound OC[C@H](N)C(O)=O MTCFGRXMJLQNBG-REOHCLBHSA-N 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 2
- OISVCGZHLKNMSJ-UHFFFAOYSA-N 2,6-dimethylpyridine Chemical compound CC1=CC=CC(C)=N1 OISVCGZHLKNMSJ-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 239000004201 L-cysteine Substances 0.000 description 2
- 235000013878 L-cysteine Nutrition 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- MSPCIZMDDUQPGJ-UHFFFAOYSA-N N-methyl-N-(trimethylsilyl)trifluoroacetamide Chemical compound C[Si](C)(C)N(C)C(=O)C(F)(F)F MSPCIZMDDUQPGJ-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- HOPRXXXSABQWAV-UHFFFAOYSA-N anhydrous collidine Natural products CC1=CC=NC(C)=C1C HOPRXXXSABQWAV-UHFFFAOYSA-N 0.000 description 2
- 235000020958 biotin Nutrition 0.000 description 2
- 239000011616 biotin Substances 0.000 description 2
- 229960002685 biotin Drugs 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- IYYIVELXUANFED-UHFFFAOYSA-N bromo(trimethyl)silane Chemical compound C[Si](C)(C)Br IYYIVELXUANFED-UHFFFAOYSA-N 0.000 description 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- UTBIMNXEDGNJFE-UHFFFAOYSA-N collidine Natural products CC1=CC=C(C)C(C)=N1 UTBIMNXEDGNJFE-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 150000001469 hydantoins Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 150000007530 organic bases Chemical class 0.000 description 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- 239000003586 protic polar solvent Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 238000006884 silylation reaction Methods 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- GFYHSKONPJXCDE-UHFFFAOYSA-N sym-collidine Natural products CC1=CN=C(C)C(C)=C1 GFYHSKONPJXCDE-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- AQRLNPVMDITEJU-UHFFFAOYSA-N triethylsilane Chemical compound CC[SiH](CC)CC AQRLNPVMDITEJU-UHFFFAOYSA-N 0.000 description 2
- 239000005051 trimethylchlorosilane Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 1
- NAMOLZDECBHWKJ-MYJWUSKBSA-N (7ar)-6-benzyl-3-phenyl-3,7a-dihydro-1h-imidazo[1,5-c][1,3]thiazole-5,7-dione Chemical compound C([C@H]1C2=O)SC(C=3C=CC=CC=3)N1C(=O)N2CC1=CC=CC=C1 NAMOLZDECBHWKJ-MYJWUSKBSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- RPXYAIQJELFBMF-UHFFFAOYSA-N 1,3-dibenzyl-4-hydroxy-5-(sulfanylmethyl)imidazolidin-2-one Chemical compound O=C1N(CC=2C=CC=CC=2)C(O)C(CS)N1CC1=CC=CC=C1 RPXYAIQJELFBMF-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- PWKSKIMOESPYIA-UHFFFAOYSA-N 2-acetamido-3-sulfanylpropanoic acid Chemical compound CC(=O)NC(CS)C(O)=O PWKSKIMOESPYIA-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 125000002774 3,4-dimethoxybenzyl group Chemical group [H]C1=C([H])C(=C([H])C(OC([H])([H])[H])=C1OC([H])([H])[H])C([H])([H])* 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 125000006181 4-methyl benzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])C([H])([H])* 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
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 238000006214 Clemmensen reduction reaction Methods 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- SRBFZHDQGSBBOR-OWMBCFKOSA-N L-ribopyranose Chemical compound O[C@H]1COC(O)[C@@H](O)[C@H]1O SRBFZHDQGSBBOR-OWMBCFKOSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical class [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 description 1
- 238000006856 Wolf-Kishner-Huang Minlon reduction reaction Methods 0.000 description 1
- 238000005644 Wolff-Kishner reduction reaction Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 239000002168 alkylating agent Substances 0.000 description 1
- 229940100198 alkylating agent Drugs 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 229940024606 amino acid Drugs 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 1
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 1
- JRXXLCKWQFKACW-UHFFFAOYSA-N biphenylacetylene Chemical class C1=CC=CC=C1C#CC1=CC=CC=C1 JRXXLCKWQFKACW-UHFFFAOYSA-N 0.000 description 1
- SIOVKLKJSOKLIF-UHFFFAOYSA-N bis(trimethylsilyl)acetamide Chemical compound C[Si](C)(C)OC(C)=N[Si](C)(C)C SIOVKLKJSOKLIF-UHFFFAOYSA-N 0.000 description 1
- UORVGPXVDQYIDP-UHFFFAOYSA-N borane Chemical class B UORVGPXVDQYIDP-UHFFFAOYSA-N 0.000 description 1
- 229910000085 borane Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 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
- MXOSTENCGSDMRE-UHFFFAOYSA-N butyl-chloro-dimethylsilane Chemical compound CCCC[Si](C)(C)Cl MXOSTENCGSDMRE-UHFFFAOYSA-N 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
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- BULLHNJGPPOUOX-UHFFFAOYSA-N chloroacetone Chemical compound CC(=O)CCl BULLHNJGPPOUOX-UHFFFAOYSA-N 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000011097 chromatography purification Methods 0.000 description 1
- 239000012230 colorless oil Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- HPYNZHMRTTWQTB-UHFFFAOYSA-N dimethylpyridine Natural products CC1=CC=CN=C1C HPYNZHMRTTWQTB-UHFFFAOYSA-N 0.000 description 1
- 125000005982 diphenylmethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- OJCSPXHYDFONPU-UHFFFAOYSA-N etoac etoac Chemical compound CCOC(C)=O.CCOC(C)=O OJCSPXHYDFONPU-UHFFFAOYSA-N 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 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
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 150000007857 hydrazones Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- HZRMTWQRDMYLNW-UHFFFAOYSA-N lithium metaborate Chemical compound [Li+].[O-]B=O HZRMTWQRDMYLNW-UHFFFAOYSA-N 0.000 description 1
- BRMYZIKAHFEUFJ-UHFFFAOYSA-L mercury diacetate Chemical compound CC(=O)O[Hg]OC(C)=O BRMYZIKAHFEUFJ-UHFFFAOYSA-L 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 150000004681 metal hydrides Chemical class 0.000 description 1
- 125000005394 methallyl group Chemical group 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- BYKIUQGQPWHSRX-FIXSFTCYSA-N methyl 5-[(3as,4s,6ar)-1,3-dibenzyl-2-oxo-3a,4,6,6a-tetrahydrothieno[3,4-d]imidazol-4-yl]pentanoate Chemical compound N1([C@H]2[C@@H](N(C1=O)CC=1C=CC=CC=1)CS[C@H]2CCCCC(=O)OC)CC1=CC=CC=C1 BYKIUQGQPWHSRX-FIXSFTCYSA-N 0.000 description 1
- MXKXIBHYPPOKCN-UHFFFAOYSA-N methyl 6-[(4-ethoxy-4,5-dihydroimidazol-1-yl)methylsulfanyl]-5-oxohexanoate Chemical compound O=C(CSCN1C=NC(C1)OCC)CCCC(=O)OC MXKXIBHYPPOKCN-UHFFFAOYSA-N 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([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
- 238000005580 one pot reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000005440 p-toluyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C(*)=O)C([H])([H])[H] 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- FAIAAWCVCHQXDN-UHFFFAOYSA-N phosphorus trichloride Chemical compound ClP(Cl)Cl FAIAAWCVCHQXDN-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229960003975 potassium Drugs 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 0.000 description 1
- JVUYWILPYBCNNG-UHFFFAOYSA-N potassium;oxido(oxo)borane Chemical compound [K+].[O-]B=O JVUYWILPYBCNNG-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229960001153 serine Drugs 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 150000003462 sulfoxides Chemical class 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
- WHRNULOCNSKMGB-UHFFFAOYSA-N tetrahydrofuran thf Chemical compound C1CCOC1.C1CCOC1 WHRNULOCNSKMGB-UHFFFAOYSA-N 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 238000006257 total synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- DBGVGMSCBYYSLD-UHFFFAOYSA-N tributylstannane Chemical compound CCCC[SnH](CCCC)CCCC DBGVGMSCBYYSLD-UHFFFAOYSA-N 0.000 description 1
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-M triflate Chemical compound [O-]S(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-M 0.000 description 1
- 150000008648 triflates Chemical class 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 1
- SIOVKLKJSOKLIF-HJWRWDBZSA-N trimethylsilyl (1z)-n-trimethylsilylethanimidate Chemical compound C[Si](C)(C)OC(/C)=N\[Si](C)(C)C SIOVKLKJSOKLIF-HJWRWDBZSA-N 0.000 description 1
- LEIMLDGFXIOXMT-UHFFFAOYSA-N trimethylsilyl cyanide Chemical compound C[Si](C)(C)C#N LEIMLDGFXIOXMT-UHFFFAOYSA-N 0.000 description 1
- CSRZQMIRAZTJOY-UHFFFAOYSA-N trimethylsilyl iodide Chemical compound C[Si](C)(C)I CSRZQMIRAZTJOY-UHFFFAOYSA-N 0.000 description 1
- 125000002221 trityl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C([*])(C1=C(C(=C(C(=C1[H])[H])[H])[H])[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/30—Oxygen or sulfur atoms
- C07D233/40—Two or more oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/30—Oxygen or sulfur atoms
- C07D233/42—Sulfur atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/04—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D233/28—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/44—Nitrogen atoms not forming part of a nitro radical
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
Definitions
- the invention relates to a process for the preparation of D - (+) - biotin from a cysteine hydantoin
- R 1 H a group R 3 R 4 CH- or SiR 5 R 6 R 7 , wherein R 3 and R 4 are each independently
- R H or a protective group suitable for a nitrogen atom
- the object of the invention was to provide a new process for the production of optically active D - (+) - biotin, which avoids the implementation of a racemate cleavage and thus the discarding or recycling of the undesired enantiomer.
- DE-OS 3122 562 and DE-OS 33 20 140 D-arabinose used as a chiral starting material.
- D - (+) - biotin can be obtained from the chiral (4R / S, 5R) -5-mercaptomethyl-imidazolidin-4-ol of the formula II without additional racemate resolution.
- This can be produced from the naturally occurring amino acids L-cysteine or L-cystine via a cysteine hydantoin of the formula I.
- the invention therefore relates to a method
- R 1 H a group R 3 R 4 CH- or SiR 5 R 6 R 7 , wherein
- R 3 and R 4 are each independently
- R 7 each independently represent unsubstituted or substituted alkyl, cycloalkyl, aryl, aralkyl or heteroaryl, R 2 is H or a protective group suitable for a nitrogen atom and
- Cycloalkyl, aryl, alkoxycarbonyl group or a dialkylamino group is, under the action of a complex reducing agent, reduced to an alcohol of the formula II.
- ZO, S a dialkoxy, alkylenedioxydiyl, alkylenedithiodiyl group or N-R ', where R' is an alkyl, cycloalkyl, aryl, alkoxycarbonyl group or dialkylamino group, Y Cl, Br, J or -O-SO 2 -R ", in which R '' is methyl, toluyl or perfluoroalkyl, and R 9 is alkyl or alkenyl with up to 8 C atoms, C 6 H 5 ,
- R is lower alkyl, cycloalkyl or aryl, and n is 2, 3, 4, 5, 6, 7 or 8, mean the alkylation product of formula IV thus obtained
- R 1 , R 2 , R 9 , Z and X have the meaning given and R 10 is alkyl having 1-6 C atoms or one
- Trialkylsilyl group means, after conversion into a silyl enol ether, cyclized with a silylating reagent in the presence of a base by means of a Lewis acid to a biotin derivative of the formula V.
- R 1 , R 2 , R 9 and X have the meaning given, and converting this derivative into a dehydrobiotin derivative of the formula VI by reduction with a complex reducing agent and subsequent elimination,
- R 1 , R 2 , R 9 and X have the meaning given. which is converted into D - (+) - biotin by methods known per se.
- Such a process is also one in which the optically active bicyclic hydantoin is used to prepare the cysteine hydantoin of the formula I.
- R 2 , R 3 , R 4 and X have the meaning given, cleaved with an acid and / or a reducing agent, object of the invention.
- the intermediates of the formulas II, IV, IVa and V which have passed through in the process according to the invention are new.
- the invention also relates to the new intermediates, namely the compounds of the formula II,
- R 1 , R 2 , R 9 , Z and X have the meaning given, in particular in which R 1 and R 2 are benzyl, ZO and R 9 - (CH 2 ) 3 -COOR, in which R is lower alkyl, the compounds Formula IVa,
- R 1 , R 2 , R 9 , R 10 , Z and X have the meaning given, in particular in which R 1 and R 2 are benzyl, ZO and R 9 - (CH 2 ) 3 -COOR, in which R is lower alkyl , as well as the compounds formula V,
- R 1 , R 2 , R 9 , Z and X have the meaning given in, in particular in which R 1 and R 2 are benzyl, ZO, and R 9 - (CH 2 ) 3 -COOR, in which R is lower alkyl.
- the starting compounds of the formula I are prepared by methods known per se, as described in the literature (for example in standard works such as Houben-Weyl, Methods of Organic Chemistry, Georg-Thieme-Verlag, Stuttgart), under reaction conditions such as they are known and suitable for the implementations mentioned. Use can also be made of variants which are known per se and are not mentioned here in detail.
- Formula VII are known or can be prepared from L-cysteine or L-serine (EP-A2-0243 734) by known methods.
- Heavy metal salts such as silver nitrate, mercury (II) chloride or mercury (II) acetate can also be used as a cleavage reagent.
- the subsequent decomposition of the intermediate metal mercaptides is advantageously carried out using hydrogen sulfide.
- Solvents suitable for this cleavage reaction can be found, for example, among the alcohols such as methanol or ethanol, amides such as dimethylformamide or ethers such as tetrahydrofuran.
- Bicyclic hydantoins of the formula VII can be reacted with reducing agents to give intermediates of the formula I in which R 1 is CHR 3 R 4 .
- Suitable reducing agents are, for example, metals such as zinc.
- Metals are preferably made in an acidic environment.
- Suitable acids for this are, for example, mineral acids such as hydrochloric acid or sulfuric acid or organic acids
- the alcohols of the formula II can be obtained from the cysteine hydantoins of the formula I by the action of a complex reducing agent.
- Preferred com plexe reducing agents are, for example, boranes such as diborane, sodium boranate, lithium cyano-trihydroborate, lithium, sodium or potassium triethylboranate, metal hydrides such as sodium hydride or aluminum hydride, silicon hydrides such as triethylsilane, tributyltin hydride and mixed hydrides such as lithium alanate, sodium 2-ananate, sodium alanate, sodium -ethoxy) -dihydridoaluminate,
- Potassium boranate or lithium boranate especially diisobutyl aluminum hydride (DIBAH).
- DIBAH diisobutyl aluminum hydride
- suitable solvents are, for example, water, alcohols such as methanol, ethanol, isopropanol or butanol, ethers such as tetrahydrofuran, dioxane, diethyl ether or ethylene glycol dimethyl ether and hydrocarbons such as pentane, cyclohexane, benzene or toluene.
- alcohols such as methanol, ethanol, isopropanol or butanol
- ethers such as tetrahydrofuran, dioxane, diethyl ether or ethylene glycol dimethyl ether
- hydrocarbons such as pentane, cyclohexane, benzene or toluene.
- R 1 , R 2 , R 3 , R 4 , R 9 have
- R 10 , X, Y, Z and n have the meaning given, unless expressly stated otherwise.
- the radical R 1 is preferably a radical of
- the radicals R 5 , R 4 and R 7 are preferably C 1 -C 4 -alkyl unsubstituted or substituted by C 1 -C 3 phenyl, particularly preferably R 5 and R 6 are simultaneously methyl or phenyl and R 7 is methyl or tert.- Butyl.
- R 2 preferably denotes a protective group for the nitrogen atom linked to it, which makes it possible to convert the compound of the formula I into a D - (+) - biotin derivative, the nitrogen atom of which is protected with R 2 , by the process according to the invention, and then to selectively split off this protective group under mild conditions.
- Preferred radicals R 2 are, for example, benzyl, methoxybenzyl, 3,4-dimethoxybenzyl, 4-methylbenzyl, allyl,
- X represents O or S, preferably O.
- Y represents a leaving group, preferably a halogen such as Cl, Br, or J or a sulfonic acid residue -O-SO 2 -R ", where R" preferably signifies p-toluyl, methyl or trifluoromethyl.
- R preferably signifies p-toluyl, methyl or trifluoromethyl.
- Y particularly preferably denotes Cl or bromine.
- R 9 preferably denotes alkyl or alkenyl having up to 8 carbon atoms, - (CH 2 ) n -CN, - (CH 2 ) n -COOR or
- R is lower alkyl and n is 2, 3, 4, 5, 6, 7 or 8.
- R is preferably 9
- R 9 represents a radical which can be converted into a radical of the formula - (CH 2 ) 3 -CO 2 R in a manner known per se.
- R 9 is n-butyl, 3-cyanopropyl, 3- (alkoxycarbonyl) propyl, 2-alkoxyethyl, 3-alkoxypropyl or 4-alkoxybutyl, alkoxy preferably methoxy,
- Ethoxy, n-propoxy or i-propoxy means.
- the compounds of formula II are in the presence of a
- Base alkylated with the electrophiles of formula III are, for example, alkali metal hydroxides such as sodium or potassium hydroxide,
- Alkali metal carbonates such as sodium hydrogen carbonate, potassium carbonate or potassium hydrogen carbonate, alkali metal acetates such as sodium or potassium acetate, alkaline earth metal hydroxides and oxides such as calcium hydroxide, calcium oxide or aluminum oxide or organic bases such as triethylamine, diisopropylethylamine, pyridine,
- Lutidine piperidine, morpholine, piperazine, collidine, quinoline or N, N-dimethylaminopyridine, especially triethylamine or pyridine.
- Suitable inert solvents are preferably hydrocarbons such as cyclohexane, benzene or Toluene, ethers such as tetrahydrofuran or dioxane, amides such as dimethylformamide or hexamethylphosphoric triamide, sulfoxides such as dimethyl sulfoxide, alcohols such as methanol or ethanol or esters such as ethyl acetate.
- An excess of organic base is also suitable as a solvent.
- reaction temperatures are advantageously between about 0 ° and 200 ° C, preferably between 20 and
- the alkylation products of the formula IV are preferably etherified to the ethers of the formula IVa.
- R 10 preferably denotes methyl, ethyl, n-propyl, n-butyl, n-pentyl, n-hexyl, trimethylsilyl, triisopropylsilyl or tert. Butyldimethylsilyl as well as i-propyl and tert. Butyl.
- the corresponding alcohols of the formula R 10 are preferably -OH with the alcohol of the formula IV
- a catalytic amount of acid or a dehydrating agent such as an acid such as sulfuric acid, phosphoric acid, hydrogen chloride or p-toluenesulfonic acid, an acid derivative such as phosphorus pentoxide, phosphorus trichloride, or phosphorus oxychloride, an acidic ion exchanger or molecular sieves.
- the etherification is carried out in a suitable solvent, the pure alcohol R 10 -OH or a mixture
- Suitable solvents are, for example, benzene, toluene,
- Chloroform, dichloroethane, diethyl ether and tetrahydrofuran Chloroform, dichloroethane, diethyl ether and tetrahydrofuran.
- the etherification is preferably carried out at temperatures between -20 ° C and +150 ° C.
- the etherification is particularly preferably weak
- Suitable silylation reagents are the trialkylsilyl halides such as trimethylchlorosilane (TMCS), triisopropylchlorosilane (TIPCS), tert. Butyldimethylchlorosilane (TBDMCS), trimethylbromosilane (TMBS) and trimethyliodosilane (TMJS), trialkylsilyl triflates such as e.g. B.
- TMSOTf trimethylsilyl triflate
- ThiDMSOTf Thexyldimetethylsilyltriflat
- TIPSOTf triisopropylsilyl triflate
- ETSA trimethylsilyl ethyl ester
- BSA N, O-bis (trimethylsilyl) acetamide
- MSTFA N-methyl-N-trimethylsilyltrifluoroacetamide
- HMDS hexamethyldisilazane
- the trialkylsilyl triflates are particularly preferred, since they carry out a reaction under kinetic control at temperatures between -60 ° and 10 ° C, preferably between -30 and 0 ° C, allow.
- Organic amines are suitable as bases. Suitable organic amines are, for example, pyridine, triethylamine, diisopropylamine, piperidine, morpholine, tert. Butylamine, collidine, quinoline, 4-N, N-dimethylaminopyridine, diisopropylethylamine, 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU) and 1,6-diazabicyclo [4.3.0] non-5-ene (DBN).
- pyridine triethylamine
- diisopropylamine piperidine
- morpholine tert.
- Butylamine collidine, quinoline, 4-N, N-dimethylaminopyridine, diisopropylethylamine, 1,8-diazabicyclo [5.4.0] undec-7-ene (DBU) and 1,6-diazabicyclo [4.3.0] non-5-ene (DBN).
- R 1 , R 2 , R 9 , R 10 and X have the meaning given, and R 11 each independently
- Alkyl group with 1-6 C atoms means, is converted in situ by means of a Lewis acid to a biotin derivative
- Suitable Lewis acids are aluminum, tin, zinc and titanium halides or triflates, such as, for example, aluminum chloride, tin tetrachloride, zinc chloride and titanium tetrachloride, boron halides and boric acid esters, such as, for example, boron trifluoride, boron trichloride and trimethyl borate, or trialkylsilyl triflate, such as trimethylsilyl trilyl triflate, such as trimethylsilyl triflate.
- the reaction temperature is usually between -90 ° and 0 ° C, preferably between -90 ° and -50 ° C. At these temperatures, the reactions are usually complete after 15 minutes to 4 hours.
- the alcohol of the formula IV or the ether of the formula IVa is in an inert solvent in the presence of a base at a temperature between -30 ° C. and 0 ° C. with about one equivalent of trialkylsilyl triflate in the silylenol ether of the formula IVb and, after cooling to a temperature between 90 ° C. and -50 ° C., cyclized in situ to the biotin derivative of the formula V by adding a further substoichiometric amount of the same trialkylsilyl triflate.
- the biotin derivative of the formula V is present as a mixture of the diastereomers of the formulas Va and Vb.
- the ratio of these diastereomers can be influenced by suitable reaction control.
- biotin derivatives of the formula Vb can be converted into biotin derivatives with suitable reducing agents
- Formula VIII are known and can be prepared by methods known per se, e.g. in DE-2058234, EP-0 036 030, EP-0 084377 and U.S. Pat. 3,859,167 discloses to
- Suitable reducing agents for reducing the biotin derivatives of formula Vb to those of formula VIII are e.g. Zinc amalgam in aqueous hydrochloric acid (Clemmensen reduction), hydrazine hydrate in the presence of bases
- R 1 , R 2 , R 9 and X have the meaning given, are converted with a complex reducing agent and subsequent dehydration to a dehydrobiotin derivative of the formula VI.
- complex reducing agents are those which are also used for reducing the cysteine hydantoins in the formula I.
- reaction of the complex hydrides with the compounds of the formula V is advantageously carried out in an inert solvent, a protic solvent or a mixture of an inert and a protic one
- Suitable inert solvents are preferably hydrocarbons such as pentane,
- reaction temperatures are advantageously between about -120 ° C and +150 ° C, preferably between -80 ° C and +100 ° C, the reaction times between about 30 minutes and 24 hours.
- Acids such as sulfuric acid, hydrochloric acid, phosphoric acid, toluenesulfonic acid or bases such as sodium or potassium hydroxide are suitable, for example, for dehydrating the alcohols of the formula Va.
- suitable solvents are alcohols such as methanol, ethanol, isopropanol or butanol.
- the alcohols of the formula Vc are preferably converted into the corresponding mesylate using mesyl chloride and then heated in the presence of a base.
- the dehydrobiotin derivatives of the formula VI are known and can be prepared by processes known per se (e.g.
- EP 0 084 377) can be converted to D - (+) - biotin.
- the process according to the invention thus allows the production of optically active D - (+) - biotin in a simple and stereospecific manner in high yields from easily accessible, inexpensive starting materials in a few synthetic steps, some of which can be carried out in one-pot processes, and thus represents a significant advance in the field of Biotin synthesis.
- the specific rotation values are measured on a Perkin-Elmer polarimeter in the specified solvent.
- TMSOTf and 2 ml dry dichloromethane After warming up to room temperature, stirring is continued for a further 1.5 hours. After cooling to -60 ° C, a mixture is added dropwise to 180 mg of TMSOTf and 1 ml of dry dichloromethane.
- Hexane 1 1 + 1% TEA).
- Dichloromethane is stirred at -20 ° C and 111 mg TEA and 222 mg TMSOTf for 10 hours. After cooling to -60 ° C., adding a further 245 mg of TMSOTf and stirring for a further half hour, 310 mg (69% of theory) of a 2: 1 diastereomer mixture of (3aS, 6aR, 4R) and (3aS, 6aR, 4S) -1,3-dibenzyl-4- (1-oxo-4-methoxycarbonylbutyl) tetrahydrothieno [3,4 d] imidazolidin-2 (3H) -one.
- the pure (3aS, 6aR, 4R) diastereomer with a melting point of 101-102 ° C. is obtained by recrystallization.
- the crude product is then dissolved in a mixture of 15 ml of dichloromethane and 15 ml of triethylamine, and 573 mg of methanesulfonyl chloride (mesyl chloride) are added at room temperature. The solution is stirred for 90 minutes at 35 ° C., filtered and concentrated under reduced pressure.
- methanesulfonyl chloride methanesulfonyl chloride
- the crude mesylate is then dissolved in 15 ml of DBU and stirred at 60 ° C for 2 hours. The mixture is then cooled to room temperature, the reaction mixture is diluted with 75 ml of toluene and washed in succession with 30 ml of 2N hydrochloric acid and water.
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- Chemical & Material Sciences (AREA)
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- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
Description
Claims
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Application Number | Priority Date | Filing Date | Title |
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DE3926690A DE3926690A1 (de) | 1989-08-12 | 1989-08-12 | Verfahren zur herstellung von d-(+)-biotin |
DEP3926690.7 | 1989-08-12 |
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WO1991002734A1 true WO1991002734A1 (de) | 1991-03-07 |
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PCT/EP1990/001235 WO1991002734A1 (de) | 1989-08-12 | 1990-07-28 | Verfahren zur herstellung von d-(+)-biotin |
Country Status (5)
Country | Link |
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US (1) | US5250699A (de) |
EP (1) | EP0439564A1 (de) |
JP (1) | JPH04501269A (de) |
DE (1) | DE3926690A1 (de) |
WO (1) | WO1991002734A1 (de) |
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US5274107A (en) * | 1992-04-06 | 1993-12-28 | Council Of Scientific & Industrial Research | Process for synthesis of D(+) biotin |
ZA966885B (en) * | 1995-08-22 | 1998-02-16 | Du Pont Merck Pharma | Substituted cyclic ureas and derivatives thereof useful as retroviral protease inhibitors. |
US6350881B1 (en) * | 2000-11-28 | 2002-02-26 | Council Of Scientific And Industrial Research | Process for the preparation of 5-methoxy-4-(methylthioalkyl) 1, 3-bis(phenylmethyl)-2-imidazolidone |
US20050159602A1 (en) * | 2004-01-16 | 2005-07-21 | Labeltek Inc. | Method for synthesizing chiral bicyclic thiazolidine hydantoin |
US20070278453A1 (en) * | 2006-06-02 | 2007-12-06 | Steffen Zahn | Electrically conductive polymers and method of making electrically conductive polymers |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0094776A2 (de) * | 1982-05-17 | 1983-11-23 | Pfizer Inc. | Verfahren zur Herstellung von Biotin |
EP0242686A2 (de) * | 1986-04-19 | 1987-10-28 | MERCK PATENT GmbH | Verfahren zur Herstellung von D-(+)-Biotin |
Family Cites Families (1)
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BE899531A (fr) * | 1984-04-27 | 1984-08-16 | Wallone Region | Derives sulfures de l'hydantoine et compositions pharmaceutiques les contenant. |
-
1989
- 1989-08-12 DE DE3926690A patent/DE3926690A1/de not_active Withdrawn
-
1990
- 1990-07-28 US US07/671,770 patent/US5250699A/en not_active Expired - Lifetime
- 1990-07-28 EP EP90910649A patent/EP0439564A1/de not_active Ceased
- 1990-07-28 JP JP2510418A patent/JPH04501269A/ja active Pending
- 1990-07-28 WO PCT/EP1990/001235 patent/WO1991002734A1/de not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0094776A2 (de) * | 1982-05-17 | 1983-11-23 | Pfizer Inc. | Verfahren zur Herstellung von Biotin |
EP0242686A2 (de) * | 1986-04-19 | 1987-10-28 | MERCK PATENT GmbH | Verfahren zur Herstellung von D-(+)-Biotin |
Non-Patent Citations (2)
Title |
---|
Journal of Biological Chemistry, Band 247, Nr. 1, 10. Januar 1972, Journal of Biological Chemistry, (Baltimore MD, US), M.N. KAZARINOFF et al.: "Bacterial Degradation of Biotin VI. Isolation and Idendification of beta-Hydroxy and beta-Keto Compounds", seiten 75-83 siehe seite 80, rechte spalte, zeilen 1-4 * |
Tetrahedron Letters, Band 29, Nr. 1. Januar 1988, Pergamon Press, (Oxford, GB), E.J. COREY et al.: "A Simple and Enantioselective Synthesis of (+)-Biotin", seiten 57-60 siehe Insbesondere seite 58, zeilen 1-18 in der anmeldung erwahnt * |
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JPH04501269A (ja) | 1992-03-05 |
EP0439564A1 (de) | 1991-08-07 |
DE3926690A1 (de) | 1991-02-14 |
US5250699A (en) | 1993-10-05 |
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