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:
wherein
R
1
represents a hydrogen atom or an optionally substituted alkyl or cycloalkyl group;
R
2
, each of which may be the same or different, represents a hydrogen atom or an optionally substituted alkyl group; and
X is a linking group.
本发明涉及
5-氨基戊酸(
5-ALA)的新衍
生物及其作为光敏剂的用途。特别地,涉及通式I的化合物及其药学上可接受的盐,用于制备此类化合物的方法以及它们在医学和美容上的应用,例如在光动力疗法和诊断方法中:其中R1代表氢原子或可选择取代的烷基或环烷基;R2,每个可能相同或不同,代表氢原子或可选择取代的烷基;而X是连接基。