YU99792A - PROCEDURE FOR OBTAINING PYRIDINE DERIVATIVES - Google Patents
PROCEDURE FOR OBTAINING PYRIDINE DERIVATIVESInfo
- Publication number
- YU99792A YU99792A YU99792A YU99792A YU99792A YU 99792 A YU99792 A YU 99792A YU 99792 A YU99792 A YU 99792A YU 99792 A YU99792 A YU 99792A YU 99792 A YU99792 A YU 99792A
- Authority
- YU
- Yugoslavia
- Prior art keywords
- pyridine derivatives
- methyl
- radical
- procedure
- hydrogen
- Prior art date
Links
Landscapes
- Pyridine Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
POSTUPAK ZA DOBIJANJE DERIVATA PIRIDINA, postupak za dobijanje derivata piridina formule 1, gde je X CH ili N triradikal, R1 je vodonik, metoksi, difluorometoksi 2, 2,2-tri-fluoroetoksi, izopropiloksi, 2-metilpropiloksi ili ciklopropilmetoksi radikal, R2 i R3 su nezavisno vodonik, metil ili metoksi radikal, a R4 je 2,2,2-trifluoroetil, etil, izopropil, metil ili 3-metoksipropil radikal, osim gde je u isto vreme X -CH=, R1 je MeO-; a R2, R3 i R4 su Me; postupak obuhvata minimum od 7 stupnjeva, od kojih je prvi N -oksidacija metil piridina sa vodonik peroksidom i katalizatorom, a poslednji je S - oksidacija tioetra sa per - kiselinom ili sa vodonik peroksidom, bazom i katalizatorom.A process for the preparation of pyridine derivatives, a process for the preparation of pyridine derivatives of formula 1, wherein X is CH or N triradical, R 1 is hydrogen, methoxy, difluoromethoxy 2, 2,2-trifluoroethoxy, isopropyloxy, 2-methylpropyloxy or cyclopropylmethoxy radical, R2 R3 is independently hydrogen, methyl or methoxy radical, and R4 is 2,2,2-trifluoroethyl, ethyl, isopropyl, methyl or 3-methoxypropyl radical, except where at the same time X is -CH =, R1 is MeO-; and R2, R3 and R4 are Me; the procedure involves a minimum of 7 steps, the first being N -oxidation of methyl pyridine with hydrogen peroxide and catalyst and the last one is S - oxidation of thioether with per-acid or with hydrogen peroxide, base and catalyst.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9102594A ES2036948B1 (en) | 1991-11-21 | 1991-11-21 | PROCEDURE FOR OBTAINING COMPOUNDS DERIVED FROM PIRIDINE. |
Publications (1)
Publication Number | Publication Date |
---|---|
YU99792A true YU99792A (en) | 1995-10-03 |
Family
ID=8274245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
YU99792A YU99792A (en) | 1991-11-21 | 1992-11-19 | PROCEDURE FOR OBTAINING PYRIDINE DERIVATIVES |
Country Status (4)
Country | Link |
---|---|
ES (4) | ES2036948B1 (en) |
HR (1) | HRP921309A2 (en) |
SI (1) | SI9200336A (en) |
YU (1) | YU99792A (en) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2060541B1 (en) * | 1993-02-26 | 1995-11-16 | Vinas Lab | NEW PROCEDURE FOR THE SYNTHESIS OF A DERIVATIVE OF 2- (2-PIRIDILMETILSUFINIL) BENCIMIDAZOLE, AND NEW INTERMEDIATE PRODUCTS OBTAINED WITH THE SAME. |
ES2063705B1 (en) * | 1993-06-14 | 1995-07-16 | S A L V A T Lab Sa | INTERMEDIATE FOR THE SYNTHESIS OF LANSOPRAZOLE AND ITS PROCEDURE FOR OBTAINING. |
ES2166269B1 (en) * | 1999-07-14 | 2003-04-01 | Sint Quimica Sa | NEW PROCEDURE FOR OBTAINING DERIVATIVES OF 2- (2-PIRIDINILMETILSULFINIL) -1H-BENZIMIDAZOL. |
ES2163372B1 (en) * | 2000-03-13 | 2003-05-01 | Esteve Quimica Sa | OXIDATION PROCEDURE OF A SULFOXIDE TIOETER GROUP. |
ES2171116B1 (en) * | 2000-04-14 | 2003-08-01 | Esteve Quimica Sa | PROCEDURE FOR OBTAINING DERIVATIVES OF (((PIRIDIL REPLACED) METAL) UNCLE) BENCIMIDAZOL. |
ES2187248B1 (en) * | 2000-08-25 | 2004-01-16 | Sint Quimica Sa | NEW PROCEDURE FOR OBTAINING DERIVATIVES OF 2- (2-PIRIDINILMETILSULFINIL) -1H-BENZIMIDAZOL. |
TWI270542B (en) | 2002-02-07 | 2007-01-11 | Sumitomo Chemical Co | Method for preparing sulfone or sulfoxide compound |
AU2003258335A1 (en) | 2002-08-21 | 2004-03-11 | Teva Pharmaceutical Industries Ltd. | A method for the purification of lansoprazole |
US7683080B2 (en) | 2002-11-18 | 2010-03-23 | Teva Pharmaceutical Industries Ltd. | Stable iansoprazole containing more than 500 ppm, up to about 3,000 ppm water and more than 200 ppm, up to about 5,000 ppm alcohol |
CA2515130A1 (en) | 2003-02-05 | 2004-08-26 | Teva Pharmaceutical Industries Ltd. | Method of stabilizing lansoprazole |
US7601737B2 (en) | 2005-07-26 | 2009-10-13 | Nycomed Gmbh | Isotopically substituted proton pump inhibitors |
WO2009066309A2 (en) * | 2007-07-12 | 2009-05-28 | Cadila Healthcare Limited | Process for preparation of omeprazole |
WO2009010937A1 (en) | 2007-07-17 | 2009-01-22 | Ranbaxy Laboratories Limited | Process for the preparation op pantoprazole sodium and pantoprazole sodium sesquihydrate |
ES2363075B1 (en) * | 2009-12-23 | 2012-03-27 | Laboratorios Viñas S.A. | Procedure for obtaining 4-chloro-2-chloromethyl-3-methylpyridine |
CN102267979A (en) * | 2011-06-15 | 2011-12-07 | 扬州天和药业有限公司 | Method for preparing lansoprazole |
CN110317164B (en) * | 2019-07-06 | 2022-08-19 | 抚州三和医药化工有限公司 | Preparation method of omeprazole intermediate |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE8204879D0 (en) * | 1982-08-26 | 1982-08-26 | Haessle Ab | NOVEL CHEMICAL INTERMEDIATES |
JPS6150978A (en) * | 1984-08-16 | 1986-03-13 | Takeda Chem Ind Ltd | Pyridine derivative and preparation thereof |
ES8604202A1 (en) * | 1985-06-01 | 1986-01-16 | Rubio Lab | Prepn. of benzimidazole deriv. for treating gastric ulcers |
FI864138A (en) * | 1985-10-16 | 1987-04-17 | Fisons Plc | HETEROCYCLISKA BLANDNINGAR. |
JPS62209062A (en) * | 1986-03-10 | 1987-09-14 | Yamanouchi Pharmaceut Co Ltd | 2-pyridylmethylthio-or 2-pyridylmethylsulfinyl-substituted condensed ring compound |
ES2023609A6 (en) * | 1990-11-29 | 1992-01-16 | Inke Sa | Process for obtaining 2-[[[3-methyl-4-(2,2,2- trifluoroethoxy)-2-pyridinyl]methyl]sulphinyl]-1H- benzimidazole |
ES2024357A6 (en) * | 1990-12-05 | 1992-02-16 | Genesis Para La Investigacion | Process for the preparation of 2-halomethyl-3,5-dimethyl-4-methoxypyridine halohydrate |
-
1991
- 1991-11-21 ES ES9102594A patent/ES2036948B1/en not_active Expired - Fee Related
-
1992
- 1992-11-19 YU YU99792A patent/YU99792A/en unknown
- 1992-11-20 HR HRP921309 patent/HRP921309A2/en not_active Application Discontinuation
- 1992-11-20 SI SI9200336A patent/SI9200336A/en unknown
-
1993
- 1993-01-15 ES ES9300064A patent/ES2066701B1/en not_active Expired - Fee Related
- 1993-05-04 ES ES9300935A patent/ES2067407B1/en not_active Expired - Fee Related
-
1994
- 1994-11-24 ES ES9402419A patent/ES2105953B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
SI9200336A (en) | 1993-06-30 |
ES2066701A1 (en) | 1995-03-01 |
ES2036948A1 (en) | 1993-06-01 |
ES2067407A1 (en) | 1995-03-16 |
HRP921309A2 (en) | 1995-02-28 |
ES2105953B1 (en) | 1998-07-01 |
ES2036948B1 (en) | 1994-09-01 |
ES2066701B1 (en) | 1995-12-01 |
ES2067407B1 (en) | 1996-04-16 |
ES2105953A1 (en) | 1997-10-16 |
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