CN1272496A - 手性咪唑啉酮除草剂的制备方法 - Google Patents
手性咪唑啉酮除草剂的制备方法 Download PDFInfo
- Publication number
- CN1272496A CN1272496A CN00108177A CN00108177A CN1272496A CN 1272496 A CN1272496 A CN 1272496A CN 00108177 A CN00108177 A CN 00108177A CN 00108177 A CN00108177 A CN 00108177A CN 1272496 A CN1272496 A CN 1272496A
- Authority
- CN
- China
- Prior art keywords
- formula
- methyl
- tetrahydroglyoxaline
- acid
- sec
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 title description 10
- 238000000034 method Methods 0.000 claims abstract description 33
- -1 dimethyl butyrate Chemical compound 0.000 claims description 21
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 20
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 229960003512 nicotinic acid Drugs 0.000 claims description 7
- 235000001968 nicotinic acid Nutrition 0.000 claims description 7
- 239000011664 nicotinic acid Substances 0.000 claims description 7
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 150000004945 aromatic hydrocarbons Chemical group 0.000 claims description 5
- 229910052728 basic metal Inorganic materials 0.000 claims description 5
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 4
- 239000011260 aqueous acid Substances 0.000 claims description 4
- 150000005690 diesters Chemical class 0.000 claims description 4
- 229930195733 hydrocarbon Natural products 0.000 claims description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 150000002148 esters Chemical class 0.000 claims description 3
- 238000010306 acid treatment Methods 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 150000003818 basic metals Chemical class 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims 1
- 150000005826 halohydrocarbons Chemical class 0.000 claims 1
- 125000003944 tolyl group Chemical group 0.000 claims 1
- YCPQUHCGFDFLSI-ZCFIWIBFSA-N (2r)-2-amino-2,3-dimethylbutanamide Chemical compound CC(C)[C@@](C)(N)C(N)=O YCPQUHCGFDFLSI-ZCFIWIBFSA-N 0.000 abstract 1
- CAAMSDWKXXPUJR-UHFFFAOYSA-N 3,5-dihydro-4H-imidazol-4-one Chemical compound O=C1CNC=N1 CAAMSDWKXXPUJR-UHFFFAOYSA-N 0.000 abstract 1
- 239000004009 herbicide Substances 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009333 weeding Methods 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical class NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- GHVZOJONCUEWAV-UHFFFAOYSA-N [K].CCO Chemical compound [K].CCO GHVZOJONCUEWAV-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- DNSISZSEWVHGLH-UHFFFAOYSA-N butanamide Chemical compound CCCC(N)=O DNSISZSEWVHGLH-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229940117389 dichlorobenzene Drugs 0.000 description 1
- 239000002027 dichloromethane extract Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 125000004184 methoxymethyl group Chemical group [H]C([H])([H])OC([H])([H])* 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/06—Nitrogen directly attached to an aromatic ring system
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Plural Heterocyclic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/303,967 US5973154A (en) | 1999-05-03 | 1999-05-03 | Process for the preparation of chiral imidazolinone herbicides |
| US09/303,967 | 1999-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1272496A true CN1272496A (zh) | 2000-11-08 |
Family
ID=23174474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00108177A Pending CN1272496A (zh) | 1999-05-03 | 2000-04-27 | 手性咪唑啉酮除草剂的制备方法 |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US5973154A (enExample) |
| EP (1) | EP1050533A1 (enExample) |
| JP (1) | JP2000319276A (enExample) |
| KR (1) | KR20010029680A (enExample) |
| CN (1) | CN1272496A (enExample) |
| AR (1) | AR025522A1 (enExample) |
| AU (1) | AU3024300A (enExample) |
| BR (1) | BR0002073A (enExample) |
| CA (1) | CA2307391C (enExample) |
| HU (1) | HUP0001710A3 (enExample) |
| IL (1) | IL135795A (enExample) |
| IN (1) | IN187740B (enExample) |
| MX (1) | MXPA00004111A (enExample) |
| NZ (1) | NZ504204A (enExample) |
| PL (1) | PL339971A1 (enExample) |
| SK (1) | SK6002000A3 (enExample) |
| TW (1) | TWI223650B (enExample) |
| ZA (1) | ZA200002131B (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115400A1 (zh) * | 2019-12-13 | 2021-06-17 | 沈阳中化农药化工研发有限公司 | 一种咪唑啉酮化合物的制备方法 |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SI2272350T1 (sl) | 2004-04-01 | 2013-09-30 | Basf Agrochemical Products B.V. | Sinergijsko delujoče herbicidne mešanice |
| EP1976383A2 (en) * | 2005-12-23 | 2008-10-08 | Basf Se | A method for controlling aquatic weeds |
| US9210930B2 (en) * | 2005-12-23 | 2015-12-15 | Basf Se | Control of submerged aquatic vegetation |
| US8080497B2 (en) * | 2005-12-23 | 2011-12-20 | Basf Se | Method of controlling the aquatic weed Hydrilla verticillata |
| PL2007202T3 (pl) * | 2006-04-07 | 2012-11-30 | Basf Se | Mieszanina chwastobójcza zawierająca herbicyd imidazolinonowy i środek wspomagający |
| EP2296466B1 (en) | 2008-06-18 | 2014-03-19 | Basf Se | Ternary herbicidal compositions comprising aminopyralid and imazamox |
| WO2010055042A1 (en) * | 2008-11-13 | 2010-05-20 | Basf Se | 2-[(1-cyanopropyl)carbamoyl]-5-methoxymethyl nicotinic acids and the use thereof in manufacturing herbicidal imidazolinones |
| BRPI0921883A2 (pt) * | 2008-11-13 | 2020-08-04 | Basf Se | composto, processos para preparar um composto e para a fabricação de um composto, e, uso de um composto |
| EP2358678B1 (en) * | 2008-11-13 | 2015-01-14 | Basf Se | Process for manufacturing 5-chloromethyl-2,3-pyridine dicarboxylic acid anhydrides |
| US8389731B2 (en) | 2009-05-15 | 2013-03-05 | Northwestern University | Chiral pyrrolidine core compounds en route to inhibitors of nitric oxide synthase |
| US20130157856A1 (en) | 2010-08-24 | 2013-06-20 | Basf Se | Agrochemical Mixtures for Increasing the Health of a Plant |
| HRP20171711T1 (hr) | 2011-12-05 | 2018-03-23 | Basf Agrochemical Products, B.V. | Postupci za kontroliranje nepoželjne vegetacije pomoću imazamoksa i adjuvanasa u biljnim kulturama otpornim na herbicide |
| CA3044164A1 (en) | 2016-11-21 | 2018-05-24 | Adama Agan Ltd. | Process for preparing methoxy methyl pyridine dicarboxylate |
| EP3897137B1 (en) | 2018-12-18 | 2025-07-30 | BASF Agrochemical Products B.V. | Herbicidal combinations |
| WO2020126579A1 (en) | 2018-12-18 | 2020-06-25 | Basf Agrochemical Products B.V. | Herbicidal combinations |
| WO2020126582A1 (en) | 2018-12-18 | 2020-06-25 | Basf Agrochemical Products B.V. | Herbicidal combinations |
| EP3897151A1 (en) | 2018-12-18 | 2021-10-27 | BASF Agrochemical Products B.V. | Herbicidal composition |
| WO2020126583A1 (en) | 2018-12-18 | 2020-06-25 | Basf Agrochemical Products B.V. | Herbicidal combinations |
| WO2020126584A1 (en) | 2018-12-18 | 2020-06-25 | Basf Agrochemical Products B.V. | Herbicidal combinations |
| RU2707043C1 (ru) * | 2019-03-25 | 2019-11-21 | Акционерное общество "Щелково Агрохим" | Способ получения гербицида имазамокса |
| CN113620928A (zh) * | 2021-08-16 | 2021-11-09 | 辽宁先达农业科学有限公司 | 一种甲氧咪草烟钠盐的合成方法 |
| US20250169499A1 (en) | 2021-09-28 | 2025-05-29 | Basf Agrochemical Products B.V. | Imazamox and glyphosate for controlling digitaria insularis |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4683324A (en) * | 1982-05-25 | 1987-07-28 | American Cyanamid Company | Process for the resolution of certain racemic amino nitriles |
| ZA844134B (en) * | 1983-06-02 | 1985-01-30 | American Cyanamid Co | (2-imidazolin-2-yl)thieno-and furo(2,3,-b)and(3,2-b)-pyridines and intermediates for the preparation thereof,and use of said compounds as herbicidal agents |
| DE3782508D1 (de) * | 1986-02-10 | 1992-12-17 | Ciba Geigy Ag | Verfahren zur herstellung von 2-(imidazolin-2-yl)-pyridin- und -chinolin-3-carbonsaeuren. |
| EP0296109A3 (de) * | 1987-06-18 | 1989-12-20 | Ciba-Geigy Ag | 2-(Imidazolin-2-yl)nicotinsäurederivate |
| US4925944A (en) * | 1989-03-21 | 1990-05-15 | American Cyanamid Company | Process for the preparation of o-carboxypyridyl- and o-carboxyquinolylimidazolinones |
-
1999
- 1999-05-03 US US09/303,967 patent/US5973154A/en not_active Expired - Fee Related
-
2000
- 2000-04-24 IL IL13579500A patent/IL135795A/en active IP Right Grant
- 2000-04-25 JP JP2000123949A patent/JP2000319276A/ja not_active Withdrawn
- 2000-04-26 SK SK600-2000A patent/SK6002000A3/sk unknown
- 2000-04-27 NZ NZ504204A patent/NZ504204A/en unknown
- 2000-04-27 CN CN00108177A patent/CN1272496A/zh active Pending
- 2000-04-27 MX MXPA00004111A patent/MXPA00004111A/es unknown
- 2000-04-28 EP EP00303585A patent/EP1050533A1/en not_active Ceased
- 2000-04-28 PL PL00339971A patent/PL339971A1/xx not_active Application Discontinuation
- 2000-05-01 CA CA002307391A patent/CA2307391C/en not_active Expired - Fee Related
- 2000-05-01 IN IN257CA2000 patent/IN187740B/en unknown
- 2000-05-01 KR KR1020000023246A patent/KR20010029680A/ko not_active Ceased
- 2000-05-02 ZA ZA200002131A patent/ZA200002131B/xx unknown
- 2000-05-02 AU AU30243/00A patent/AU3024300A/en not_active Abandoned
- 2000-05-02 AR ARP000102094A patent/AR025522A1/es unknown
- 2000-05-02 TW TW089108313A patent/TWI223650B/zh not_active IP Right Cessation
- 2000-05-02 HU HU0001710A patent/HUP0001710A3/hu unknown
- 2000-05-02 BR BR0002073-7A patent/BR0002073A/pt not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021115400A1 (zh) * | 2019-12-13 | 2021-06-17 | 沈阳中化农药化工研发有限公司 | 一种咪唑啉酮化合物的制备方法 |
| CN113061125A (zh) * | 2019-12-13 | 2021-07-02 | 沈阳中化农药化工研发有限公司 | 一种咪唑啉酮化合物的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| HUP0001710A2 (hu) | 2001-05-28 |
| CA2307391C (en) | 2008-07-08 |
| IL135795A0 (en) | 2001-05-20 |
| HU0001710D0 (en) | 2000-06-28 |
| JP2000319276A (ja) | 2000-11-21 |
| MXPA00004111A (es) | 2002-07-22 |
| PL339971A1 (en) | 2000-11-06 |
| BR0002073A (pt) | 2001-01-02 |
| AU3024300A (en) | 2000-11-09 |
| US5973154A (en) | 1999-10-26 |
| TWI223650B (en) | 2004-11-11 |
| EP1050533A1 (en) | 2000-11-08 |
| KR20010029680A (ko) | 2001-04-06 |
| IL135795A (en) | 2004-05-12 |
| NZ504204A (en) | 2001-09-28 |
| HUP0001710A3 (en) | 2002-12-28 |
| ZA200002131B (en) | 2000-11-07 |
| SK6002000A3 (en) | 2000-12-11 |
| AR025522A1 (es) | 2002-12-04 |
| IN187740B (enExample) | 2002-06-15 |
| CA2307391A1 (en) | 2000-11-03 |
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