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:
Feb. 02, 2016
Filed:
Aug. 02, 2013
Photocure Asa, Oslo, NO;
Jon Erik Brænden, Oslo, NO;
Colin Barry Charnock, Vestby, NO;
Aslak Godal, Oslo, NO;
Jo Klaveness, Oslo, NO;
Nils Olav Nilsen, Oslo, NO;
Photocure ASA, Oslo, NO;
Abstract
The invention relates to new derivatives of 5-aminolevulinic acid (5-ALA) and their use as photosensitizing agents. In particular, it relates to compounds of general formula I and their pharmaceutically acceptable salts, to methods for preparing such compounds and their medical and cosmetic use, for example in methods of photodynamic therapy and diagnosis: whereinRrepresents a hydrogen atom or an optionally substituted alkyl or cycloalkyl group;R, each of which may be the same or different, represents a hydrogen atom or an optionally substituted alkyl group; andX is a linking group.