| Title of Invention | METHOD FOR OBTAINING DERIVATIVES OF [((PYRIDIL SUBSTITUTED) METHYL)THIO] BENZIMIDAZOLE |
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| Abstract | The method for obtaining derivatives of [[(pyridil substituted)methyl]thio]benzomidazol (I), where each of R1, R3 and R4, independently of each other, is hydrogen, an alkyl, alkoxy or fluorinated alkoxy of 1 to 6 carbon atoms, and R2 is nitro, halogen, alkoxy or halogenated alkoxy of 1 to 6 carbon atoms, or a group -OR-(CH2)n-OR8, where n is an integer between 1 and 6 and R8 represents hydrogen or an alkyl group with 1 to 6 carbon atoms, which involves (a) reacting an N-oxide of a methylpyridine with an anhydride of activated carboxylic acid or of sulfonic acid, and (b) reacting the intermediate formed in stage (a) with a corresponding mercaptobenzomidazol. The compounds (I) are useful in the synthesis of derivatives of [[(pyridil substituted)methyl]sulfinyl]benzomidazol, such as omeprazol, lansoprazol, rabeprazol or pantoprazol. |
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IN-PCT-2002-1272-KOL-CORRESPONDENCE.pdf
IN-PCT-2002-1272-KOL-FORM 27.pdf
in-pct-2002-1272-kol-granted-abstract.pdf
in-pct-2002-1272-kol-granted-claims.pdf
in-pct-2002-1272-kol-granted-correspondence.pdf
in-pct-2002-1272-kol-granted-description (complete).pdf
in-pct-2002-1272-kol-granted-examination report.pdf
in-pct-2002-1272-kol-granted-form 1.pdf
in-pct-2002-1272-kol-granted-form 18.pdf
in-pct-2002-1272-kol-granted-form 3.pdf
in-pct-2002-1272-kol-granted-form 5.pdf
in-pct-2002-1272-kol-granted-gpa.pdf
in-pct-2002-1272-kol-granted-letter patent.pdf
in-pct-2002-1272-kol-granted-priority document.pdf
in-pct-2002-1272-kol-granted-reply to examination report.pdf
in-pct-2002-1272-kol-granted-specification.pdf
| Patent Number | 220848 | |||||||||
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| Indian Patent Application Number | IN/PCT/2002/1272/KOL | |||||||||
| PG Journal Number | 23/2008 | |||||||||
| Publication Date | 06-Jun-2008 | |||||||||
| Grant Date | 06-Jun-2008 | |||||||||
| Date of Filing | 08-Oct-2002 | |||||||||
| Name of Patentee | ESTEVE QUIMICA S.A. | |||||||||
| Applicant Address | AVDA. MARE DE DEU DE MONTSERRAT, 12, E-O8024, BARCELONA | |||||||||
Inventors:
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| PCT International Classification Number | C07D 401/12 | |||||||||
| PCT International Application Number | PCT/ES01/00143 | |||||||||
| PCT International Filing date | 2001-04-10 | |||||||||
PCT Conventions:
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