The present invention relates to compounds being esters of 5-aminolevulinic acids or pharmaceutically acceptable salts thereof, including compounds of formula (I) R22N—CH2COCH2—CH2CO—OR1 (wherein R1 may represent alkyl optionally substituted by hydroxy, alkoxy, acyloxy, alkoxycarbonyloxy, amino, aryl, oxo or fluoro groups and optionally interrupted by oxygen, nitrogen, sulphur or phosphorus atoms; and R2 represents a hydrogen atom or a group R1, and both R2 groups may be the identical or different), and their use in diagnosis and photochemotherapy of disorders or abnormalities of external or internal surfaces of the body, and products and kits for performing the invention.
                            本发明涉及
5-氨基戊酸酯或其药学上可接受的盐的化合物,包括式(I)的化合物
R22N—CH2COCH2—CH2CO—OR1(其中R1可以表示烷基,该烷基可以选择地被羟基,烷氧基,酰氧基,烷氧羰基氧基,
氨基,芳基,氧代,氮代,
硫代或
磷代原子中断; R2表示氢原子或R1基团,且两个R2基团可以相同或不同),以及它们在诊断和照光治疗身体内外表面的疾病或异常方面的使用,以及执行本发明的产品和工具包。