DK166499B1 - Fremgangsmaade til fremstilling af thienoimidazolderivater - Google Patents
Fremgangsmaade til fremstilling af thienoimidazolderivater Download PDFInfo
- Publication number
- DK166499B1 DK166499B1 DK115686A DK115686A DK166499B1 DK 166499 B1 DK166499 B1 DK 166499B1 DK 115686 A DK115686 A DK 115686A DK 115686 A DK115686 A DK 115686A DK 166499 B1 DK166499 B1 DK 166499B1
- Authority
- DK
- Denmark
- Prior art keywords
- sub
- formula
- sup
- preparation
- descarboxybiotin
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 16
- 239000004593 Epoxy Substances 0.000 claims abstract description 8
- JCZAVVUIFWZMQI-UHFFFAOYSA-N 1h-thieno[2,3-d]imidazole Chemical class N1C=NC2=C1C=CS2 JCZAVVUIFWZMQI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- 239000001257 hydrogen Substances 0.000 claims abstract description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 9
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 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 abstract description 15
- 125000000217 alkyl group Chemical group 0.000 abstract description 7
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 4
- 239000000543 intermediate Substances 0.000 description 9
- 229960002685 biotin Drugs 0.000 description 8
- 239000011616 biotin Substances 0.000 description 8
- 235000020958 biotin Nutrition 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 125000000753 cycloalkyl group Chemical group 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 3
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910015900 BF3 Inorganic materials 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 229940068840 d-biotin Drugs 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- FXHGMKSSBGDXIY-UHFFFAOYSA-N heptanal Chemical compound CCCCCCC=O FXHGMKSSBGDXIY-UHFFFAOYSA-N 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CBDKQYKMCICBOF-UHFFFAOYSA-N thiazoline Chemical compound C1CN=CS1 CBDKQYKMCICBOF-UHFFFAOYSA-N 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 150000003722 vitamin derivatives Chemical class 0.000 description 2
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- ZEPXAFZTJPAGHT-UHFFFAOYSA-N 2-bromoheptanal Chemical compound CCCCCC(Br)C=O ZEPXAFZTJPAGHT-UHFFFAOYSA-N 0.000 description 1
- QRZPCAMSVQQRGQ-UHFFFAOYSA-N 3,5-dihydroimidazo[1,5-c][1,3]thiazole Chemical compound C1=NCN2CSC=C21 QRZPCAMSVQQRGQ-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- 241000282461 Canis lupus Species 0.000 description 1
- 241000186216 Corynebacterium Species 0.000 description 1
- 238000005684 Liebig rearrangement reaction Methods 0.000 description 1
- 239000012448 Lithium borohydride Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 241000222068 Sporobolomyces <Sporidiobolaceae> Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- -1 bromine heptanal Chemical compound 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- UWRRAHYBHTWXAQ-UHFFFAOYSA-N ethyl 2-isothiocyanatoacetate;lithium Chemical compound [Li].CCOC(=O)CN=C=S UWRRAHYBHTWXAQ-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Chemical group 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 231100000925 very toxic Toxicity 0.000 description 1
- 238000010626 work up procedure Methods 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P3/00—Drugs for disorders of the metabolism
- A61P3/02—Nutrients, e.g. vitamins, minerals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nutrition Science (AREA)
- Hematology (AREA)
- Obesity (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Diabetes (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/711,682 US4670564A (en) | 1985-03-14 | 1985-03-14 | Preparation of thieno-imidazole derivatives |
| US71168285 | 1985-03-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK115686D0 DK115686D0 (da) | 1986-03-13 |
| DK115686A DK115686A (da) | 1986-09-15 |
| DK166499B1 true DK166499B1 (da) | 1993-06-01 |
Family
ID=24859083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK115686A DK166499B1 (da) | 1985-03-14 | 1986-03-13 | Fremgangsmaade til fremstilling af thienoimidazolderivater |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4670564A (de) |
| EP (1) | EP0194846B1 (de) |
| JP (2) | JPH0686456B2 (de) |
| AT (1) | ATE63310T1 (de) |
| AU (1) | AU557395B2 (de) |
| CA (1) | CA1270254A (de) |
| DE (1) | DE3679091D1 (de) |
| DK (1) | DK166499B1 (de) |
| IE (1) | IE58456B1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU580042B2 (en) * | 1984-03-22 | 1988-12-22 | Bresatec Limited | Non-radioactive biological probes |
| US8993039B2 (en) | 2006-01-25 | 2015-03-31 | Tate & Lyle Ingredients Americas Llc | Fiber-containing carbohydrate composition |
| CN104987342B (zh) * | 2015-06-30 | 2017-03-15 | 江西科技师范大学 | 天然产物(+)‑生物素的全合成方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2489236A (en) * | 1947-07-24 | 1949-11-22 | Hoffmann La Roche | Synthesis of biotin and related compounds |
| US2489235A (en) * | 1947-07-24 | 1949-11-22 | Hoffmann La Roche | Synthesis of biotin |
| US3393129A (en) * | 1964-12-23 | 1968-07-16 | Takeda Chemical Industries Ltd | Method for producing d-biotin |
| US4029647A (en) * | 1973-12-03 | 1977-06-14 | Hoffmann-La Roche Inc. | Synthesis of biotin |
| US4062868A (en) * | 1977-02-23 | 1977-12-13 | Hoffmann-La Roche Inc. | Synthesis of biotin |
| US4468516A (en) * | 1982-05-17 | 1984-08-28 | Pfizer Inc. | Process for the preparation of biotin |
| CA1192947A (en) * | 1982-10-28 | 1985-09-03 | General Motors Corporation | Low silhouette venting system for electric storage battery |
-
1985
- 1985-03-14 US US06/711,682 patent/US4670564A/en not_active Expired - Fee Related
-
1986
- 1986-03-11 AT AT86301718T patent/ATE63310T1/de not_active IP Right Cessation
- 1986-03-11 EP EP86301718A patent/EP0194846B1/de not_active Expired - Lifetime
- 1986-03-11 DE DE8686301718T patent/DE3679091D1/de not_active Expired - Lifetime
- 1986-03-12 CA CA000503855A patent/CA1270254A/en not_active Expired - Lifetime
- 1986-03-13 AU AU54685/86A patent/AU557395B2/en not_active Ceased
- 1986-03-13 DK DK115686A patent/DK166499B1/da not_active IP Right Cessation
- 1986-03-13 IE IE66986A patent/IE58456B1/en not_active IP Right Cessation
- 1986-03-14 JP JP61056767A patent/JPH0686456B2/ja not_active Expired - Lifetime
-
1993
- 1993-10-27 JP JP5269016A patent/JPH0759585B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DK115686A (da) | 1986-09-15 |
| US4670564A (en) | 1987-06-02 |
| IE860669L (en) | 1986-09-14 |
| EP0194846A3 (en) | 1988-01-07 |
| EP0194846A2 (de) | 1986-09-17 |
| IE58456B1 (en) | 1993-09-22 |
| DE3679091D1 (de) | 1991-06-13 |
| ATE63310T1 (de) | 1991-05-15 |
| AU557395B2 (en) | 1986-12-18 |
| AU5468586A (en) | 1986-09-18 |
| JPS61233687A (ja) | 1986-10-17 |
| JPH0686456B2 (ja) | 1994-11-02 |
| JPH06293771A (ja) | 1994-10-21 |
| JPH0759585B2 (ja) | 1995-06-28 |
| EP0194846B1 (de) | 1991-05-08 |
| DK115686D0 (da) | 1986-03-13 |
| CA1270254A (en) | 1990-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1138677B1 (de) | Verfahren zur Herstellung von 11-Amino-3-chlor-6,11-dihydro-5,5-dioxo-6-methyl-dibenzo[c,f][1,2]-thiazepin und Anwendung zur Synthese von Thianeptin | |
| DK166499B1 (da) | Fremgangsmaade til fremstilling af thienoimidazolderivater | |
| RU2007402C1 (ru) | Способ получения производных 2-азабицикло(2,2,1)гепт-5-ен-2-уксусной кислоты | |
| CN116925023B (zh) | 2-全氟烷基-4h-吡喃-4-酮衍生物的改进合成方法 | |
| EP0112939B1 (de) | Pentacycloundecan Derivate, Verfahren zu ihrer Herstellung, und diese enthaltende pharmazeutische Zusammensetzungen | |
| US8080663B2 (en) | Process for the preparation of 2-methylspiro(1,3-oxathiolane-5,3′)quiniclidine | |
| US4292431A (en) | Process for the production of hydroxymethylimidazoles | |
| US4424356A (en) | Process for the preparation of 5,6,7,7a-tetrahydro-4H-thieno- 3,2,-c!pyridin-2-one | |
| SK20192000A3 (sk) | Soli n-terc-butylhydroxylamínu | |
| SU618045A3 (ru) | Способ получени производных тиено (2,3-с) пиридина или их солей | |
| US3845076A (en) | Method of preparing aldehydes | |
| Lowell Jr et al. | The Stereochemistry of Δ2-Thiazoline Formation from Episulfides | |
| HU214086B (en) | Process for producing 3-isoxazolecarboxylic acid and intermediates thereof | |
| FI113859B (fi) | Uusia menetelmiä (S)-4-amino-hepta-5,6-dieenihapon ja sen välituotteiden valmistamiseksi sekä uudet välituotteet | |
| KR100203233B1 (ko) | 아스타크산틴의 제조방법 | |
| US3359290A (en) | Production of omega-aminoketo-carboxylic acids | |
| EP0058070A2 (de) | Verfahren zur Herstellung von Pirbuterol | |
| ES3033407T3 (en) | Method for the preparation of alkyl-4-oxo-tetrahydrofuran-2-carboxylate | |
| KR20000018793A (ko) | 1,2-벤즈이소티아졸린-3-온의 제조방법 | |
| KR101170192B1 (ko) | 1,2-벤즈이속사졸-3-메탄술폰아미드의 원-포트 제조방법 | |
| US5073538A (en) | Cycloalkylidene derivatives and fragrance composition | |
| SE502722C2 (sv) | Förfarande för framställning av N,N-disubstituerade mandelsyraamider | |
| SU620210A3 (ru) | Способ получени 2,4,5-триметилтиено (3,2- ) морфана или его солей | |
| NZ199022A (en) | Preparation of 5,6,7,7a-tetrahydro-4h-thieno (3,2,-c) pyridin-2-one derivatives | |
| CA2058144C (en) | Process for the production of threo-4-alkoxy-5-(arylhydroxymethyl)-2(5h)-furanones |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |