A phenothiazinium compound of Formula (I) for use as an antimicrobial agent for the prevention of microbial infections wherein: Rl, R2, R3 and R4 each independently is an optionally substituted linear, branched or cyclic hydrocarbon group;or Rl and R2 or R3 and R4 together with the N atom to which they are attached form an optionally substituted 5-, 6- or 7- membered ring; XP- is a counteranion; and P is 1, 2 or 3. The invention also relates to compositions comprising phenothiazinium. compounds, to selected compounds and their use as medicaments, as PDT agents, as photodiagnostic agents, to a conjugate or composite formed between a phenothiazinium. and a polymer; and to a method for sterilising fluids in which the fluid is passed over the conjugate or composite whilst it is illuminated. The compounds are biologically active photosensitisers which are strongly photocytotoxic and have application in the areas of photodynamic therapy (PDT), as well as for the diagnosis and detection of medical conditions and related uses in photochemical internalisation, in the production of cancer vaccines, in the treatment and prevention of microbial infections and in photodisinfection or photosterilisation.
一种Formula(I)的
噻唑啉化合物,用作抗微
生物剂,预防微
生物感染,其中:R1、R2、R3和R4每个独立地是一个可选择取代的直链、分支或
环烃基;或者R1和R2或R3和R4与它们连接的N原子一起形成一个可选择取代的5、6或7-成员环;XP-是一个对离子;P为1、2或3。该发明还涉及包含
噻唑啉化合物的组合物,选择性化合物及其用作药物、光动力治疗剂、光诊断剂的用途,
噻唑啉和聚合物之间形成的共轭物或复合物;以及一种在液体通过共轭物或复合物时照明的方法。这些化合物是具有
生物活性的光敏剂,具有很强的光细胞毒作用,在光动力治疗(PDT)领域以及用于诊断和检测医学状况以及相关用途,如光
化学内化、癌症疫苗的生产、治疗和预防微
生物感染以及光灭菌或光灭菌中具有应用。