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The invention disclosed in this application relates to novel (S)-2-amino-3-(4-amino phenyl) propanol Of the formula I . and also to a process of its preparation .The process comprises (i) Preparing the 4-nitro-(S)-phenylalaninol of formula (IV) by conventional methods.(il) Reducing the nitro compound of formula (IV)to produce a novel intermediate of the formula (I).The novel compound (I) is useful for the preparation of oxazolidinone of theformula which in turn is an intermediate for the preparation of Zolmitriptan which is a drug useful in the treatment of migraine
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
13 January 2003
Publication Number
Publication Type
Invention Field
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2007-09-25
Renewal Date
Applicants
NATCO PHARMA LTD
NATCO HOUSE
ROAD NO. 2
BANJARA HILLS
HYDERABAD 500 033.
Inventors
1. AMALA KOMPELLA
NATCO PHARMA LTD
NATCO HOUSE
ROAD NO 2
BANJARA HILLS
HZDERABAD 500 003
ANDHRA PRADESH.
2. THUGATHURTHZ SRINIVASA RAO
NATCO PHARMA LTD
NATCO HOUSE
ROAD NO 2
BANJARA HILLS
HZDERABAD 500 003
ANDHRA PRADESH.
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 028-che-2003-pct.pdf | 2011-09-02 |
| 2 | 028-che-2003-form 5.pdf | 2011-09-02 |
| 3 | 028-che-2003-form 19.pdf | 2011-09-02 |
| 4 | 028-che-2003-form 1.pdf | 2011-09-02 |
| 5 | 028-che-2003-description(complete)grant.pdf | 2011-09-02 |
| 6 | 028-che-2003-description(complete)filed.pdf | 2011-09-02 |
| 7 | 028-che-2003-correspondnece-po.pdf | 2011-09-02 |
| 8 | 028-che-2003-correspondnece-others.pdf | 2011-09-02 |
| 9 | 028-che-2003-claims grant.pdf | 2011-09-02 |
| 10 | 028-che-2003-claims filed.pdf | 2011-09-02 |
| 11 | 028-che-2003-abstract.pdf | 2011-09-02 |
| 12 | 28-CHE-2003-RELEVANT DOCUMENTS [14-02-2018(online)].pdf | 2018-02-14 |