| Title of Invention | CHIRAL 1,4-DISUBSTITUTED PIPERAZINES PROCESS FOR THEIR PREPARATION AND INTERMEDIATES |
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| Abstract | The invention discloses a process for the stereoselective preparation of a compound of formula III wherein R and R' each independently represents a C1-C3 alkyl group; Ar represents dihydro-benzodioxinyl or benzodioxinyl, or phenyl optionally substituted with up to three substituents independently selected from halogen, methoxy, halomethyl, dihalomethy and trihalomethyl. The invention also discloses a compound of formula IV wherein Ar and R are as defined above obtained by reduction of the compound of formula III, process for their preparation and intermediates. |
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1338-kolnp-2004-granted-abstract.pdf
1338-kolnp-2004-granted-assignment.pdf
1338-kolnp-2004-granted-claims.pdf
1338-kolnp-2004-granted-correspondence.pdf
1338-kolnp-2004-granted-description (complete).pdf
1338-kolnp-2004-granted-examination report.pdf
1338-kolnp-2004-granted-form 1.pdf
1338-kolnp-2004-granted-form 18.pdf
1338-kolnp-2004-granted-form 3.pdf
1338-kolnp-2004-granted-form 5.pdf
1338-kolnp-2004-granted-gpa.pdf
1338-kolnp-2004-granted-letter patent.pdf
1338-kolnp-2004-granted-reply to examination report.pdf
1338-kolnp-2004-granted-specification.pdf
| Patent Number | 222139 | ||||||||||||
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| Indian Patent Application Number | 01338/KOLNP/2004 | ||||||||||||
| PG Journal Number | 30/2008 | ||||||||||||
| Publication Date | 25-Jul-2008 | ||||||||||||
| Grant Date | 23-Jul-2008 | ||||||||||||
| Date of Filing | 10-Sep-2004 | ||||||||||||
| Name of Patentee | WYETH | ||||||||||||
| Applicant Address | FIVE GIRALDA FARMS, MADISON, NJ 07940-0874 | ||||||||||||
Inventors:
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| PCT International Classification Number | C07D 401/00 | ||||||||||||
| PCT International Application Number | PCT/US03/07176 | ||||||||||||
| PCT International Filing date | 2003-03-10 | ||||||||||||
PCT Conventions:
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