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:
Jun. 13, 2006
Filed:
Jul. 16, 2001
Gilles Guichard, Wolfisheim, FR;
Marie-christine Galas-rodriguez, Legal Representative, Strasbourg, FR;
Pierre Rodriguez, Legal Representative, Strasbourg, FR;
Elisa Rodriguez, Legal Representative, Strasbourg, FR;
Romain Rodriguez, Legal Representative, Strasbourg, FR;
Vincent Semetey, Strasbourg, FR;
Jean-paul Briand, Strasbourg, FR;
Gilles Guichard, Wolfisheim, FR;
Marie-Christine Galas-Rodriguez, legal representative, Strasbourg, FR;
Pierre Rodriguez, legal representative, Strasbourg, FR;
Elisa Rodriguez, legal representative, Strasbourg, FR;
Romain Rodriguez, legal representative, Strasbourg, FR;
Vincent Semetey, Strasbourg, FR;
Jean-Paul Briand, Strasbourg, FR;
Neomps, Strasbourg, FR;
Centre National de la Recherche Scientifique, Paris Cedex, FR;
Abstract
Process for the preparation of stable activated derivatives of carbamic acid, comprising at least one protected amino group and an activated carbamic acid function, from an amino acid derivative in which the amino group is protected. The process includes: a) a step of transformation of the —COOH group of the amino acid derivative into a —CONgroup to obtain an acyl azide; b) a step of transformation of the —CONgroup of the acyl azide into a —NCO group to obtain an isocyanate; c) a step of treating the isocyanate to obtain a stable derivative of carbamic acid.