Abstract: The present invention relates to a salt of formula (I), the preparation method for preparing same, and the use thereof in the preparation of silodosin.
Type:
Grant
Filed:
September 29, 2016
Date of Patent:
September 24, 2019
Assignee:
URQUIMA S.A.
Inventors:
José Luis Del Río Pericacho, Xavier Vila Tusell
Abstract: Process for the preparation of olopatadine (I), which comprises reacting a compound of formula (V) in the presence of a palladium catalyst to provide a compound of formula (VI), wherein the acid protecting group is removed to provide the compound of formula (I) and if desired, transformation into its salts.
Type:
Grant
Filed:
July 11, 2005
Date of Patent:
November 3, 2009
Assignee:
Urquima S.A.
Inventors:
Joan Bosch Cartés, Jordi Bachs Roca, Antonia Ma Gomez Gomez, Yolanda Alonso Marin, Mercè Bessa Sanchez
Abstract: A new process for the preparation of Ropinirole (1) and pharmaceutically acceptable hydrochloride salt thereof comprising reacting the compound (V) with nitromethane to obtain the compound of formula (II), which is reduced to compound (III) and alkylated to obtain compound (IV).
Type:
Grant
Filed:
October 13, 2004
Date of Patent:
June 12, 2007
Assignee:
Urquima S.A.
Inventors:
Joan Bosch Cartés, Xavier Pujol Ollé, José Luis Del Rio Pericacho, Yolanda Alonso Marin, Mercè Bessa Sanchez
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