Title:
IMPROVED PHARMACEUTICAL DRUG CANDIDATES AND METHODS FOR PREPARATION THEREOF
Document Type and Number:
WIPO Patent Application WO2004113391
Kind Code:
A3
Abstract:
The present invention is directed to methods of preparation of sulfonate derivatized compounds, e.g., 3-amino-l-propanesulfonic acid and 1,3-propanedisulfonic acid disodium salt with increased purity, with reduced potential for toxic by-products, and that are pharmaceutically useful, e.g., for the treatment of amyloidosis.
Inventors:
KONG XIANQI (CA)
MIGNEAULT DAVID (CA)
WU XINFU (CA)
MIGNEAULT DAVID (CA)
WU XINFU (CA)
Application Number:
PCT/IB2004/002563
Publication Date:
April 14, 2005
Filing Date:
June 21, 2004
Export Citation:
Assignee:
NEUROCHEM INT LTD (CH)
KONG XIANQI (CA)
MIGNEAULT DAVID (CA)
WU XINFU (CA)
KONG XIANQI (CA)
MIGNEAULT DAVID (CA)
WU XINFU (CA)
International Classes:
C07C303/22; C07C303/32; C07D207/325; C07D211/52; C07D211/64; C07D211/70; C07D217/04; C07D217/10; C07D221/04; C07D233/54; C07D295/088; C07D453/02; C07D471/04; C07D495/04; C07C309/05; C07C309/14; C07D207/32; (IPC1-7): C07C303/22; C07C303/32
Domestic Patent References:
| WO2000064420A2 | 2000-11-02 | |||
| WO1996028187A1 | 1996-09-19 | |||
| WO1999040909A1 | 1999-08-19 |
Foreign References:
| GB1319841A | 1973-06-13 | |||
| GB764340A | 1956-12-28 | |||
| US4085134A | 1978-04-18 |
Other References:
ERMAN W F ET AL: "SYNTHESES AND FACILE CLEAVAGE OF FIVE-MEMBERED RING SULTAMS", JOURNAL OF ORGANIC CHEMISTRY, AMERICAN CHEMICAL SOCIETY. EASTON, US, vol. 26, December 1961 (1961-12-01), pages 4841 - 4850, XP009003664, ISSN: 0022-3263
DATABASE BEILSTEIN BEILSTEIN INSTITUT ZUR FÖRDERUNG DER CHEMISCHEN WISSENSCHAFTEN, FRANKURT AM MAIN, DE; XP002315807, Database accession no. REACTION ID 69948
DATABASE BEILSTEIN BEILSTEIN INSTITUT ZUR FÖRDERUNG DER CHEMISCHEN WISSENSCHAFTEN, FRANKURT AM MAIN, DE; XP002315808, Database accession no. BRN 5931024
DATABASE BEILSTEIN BEILSTEIN INSTITUT ZUR FÖRDERUNG DER CHEMISCHEN WISSENSCHAFTEN, FRANKURT AM MAIN, DE; XP002315809, Database accession no. BRN 2434022
DATABASE BEILSTEIN BEILSTEIN INSTITUT ZUR FÖRDERUNG DER CHEMISCHEN WISSENSCHAFTEN, FRANKURT AM MAIN, DE; XP002315807, Database accession no. REACTION ID 69948
DATABASE BEILSTEIN BEILSTEIN INSTITUT ZUR FÖRDERUNG DER CHEMISCHEN WISSENSCHAFTEN, FRANKURT AM MAIN, DE; XP002315808, Database accession no. BRN 5931024
DATABASE BEILSTEIN BEILSTEIN INSTITUT ZUR FÖRDERUNG DER CHEMISCHEN WISSENSCHAFTEN, FRANKURT AM MAIN, DE; XP002315809, Database accession no. BRN 2434022
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