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:
May. 31, 2010
Filed:
Jun. 13, 2002
Claude Thal, Sceaux, FR;
Catherine Guillou, Gif-sur-Yvette, FR;
Jean-luc Beunard, Orsay, FR;
Emmanuel Gras, Rochefort, FR;
Pierre Potier, Paris, FR;
Claude Thal, Sceaux, FR;
Catherine Guillou, Gif-sur-Yvette, FR;
Jean-Luc Beunard, Orsay, FR;
Emmanuel Gras, Rochefort, FR;
Pierre Potier, Paris, FR;
Abstract
The invention relates to a method for the synthesis of galanthamine, the derivatives and analogues thereof of formula (1) where R=a hydrogen atom, R=a hydroxy group, Rand Rtogether form ═O, R, R, and Rindependently=a hydrogen atom, a hydroxy group or a (C-C)alkoxy group, R═H, (C-C)alkyl, (CH)NRR, or —(CH)NRRRwhere n=1 to 12, Z=two hydrogen atoms, or an oxygen atom and X=an oxygen, sulphur or nitrogen atom, or a —SO, —SO, or —NRgroup where Ris as defined above or is an amine protecting group.