The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2007
Filed:
Aug. 06, 2003
Piero Del Soldato, Milan, IT;
Giancarlo Santus, Milan, IT;
Francesca Benedini, Milan, IT;
Nicox S.A., Sophia Antipolis - Valbonne, FR;
Abstract
The present invention refers to a process for preparing a compound of general formula (A), as reported in the description, wherein R is a radical of naproxen or bromonaproxen and R–Rare hydrogen or alkyl groups, m, n, o, q, r and s are each independently an integer from 0 to 6, and p is 0 or 1, and and X is O, S, SO, SO, NRor PR13 or an aryl, heteroaryl group, said process comprising reacting a compound of formula (B)R—COOZ  (B)wherein R is as defined above and Z is hydrogen or a cation selected from: Li+, Na+, K+, Ca++, Mg++, tetralkylammonium, tetralkylphosphonium, with a compound of formula (C), as reported in the description, wherein R1–R12 and m, n, o, p, q, r, s are as defined above and Y is a suitable leaving group.
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