申请人:biolitec Unternehmensbeteiligungs II AG
公开号:US20190241593A1
公开(公告)日:2019-08-08
The present invention provides biologically active compounds and methods to obtain biologically active compounds that can be used as photosensitizers for diagnostic and therapeutic applications, particularly for PDT of cancer, infections and other hyperproliferative diseases, fluorescence diagnosis and PDT treatment of non-tumorous indications such as arthritis, inflammatory diseases, viral or bacterial infections, dermatological, ophthalmological or urological disorders. As the compounds exhibit also toxicity against targets (tumor cells, bacteria, inflammation-related cells) without light these biologically active compounds may also be used for the light-independent treatment of such indications. Preferred embodiments of the present invention consist of methods to synthesize metal or half-metal complex structures incorporating one or more substituted 2,3,5,6-tetrafluorophenyl-dipyrromethene (2,3,5,6-tetrafluorophenyldipyrrin) units. These dipyrromethenes (dipyrrins) can carry a variety of different substituents in the 4-position enabling a fine tuning of their biological or amphiphilic/hydrophilic properties. Another object of the present invention is to provide amphiphilic compounds with a higher membrane affinity and increased efficacy.
本发明提供了生物活性化合物和获得这些生物活性化合物的方法,这些化合物可用作诊断和治疗应用的光敏剂,特别是用于癌症、感染和其他过度增殖疾病的光动力疗法(PDT),以及用于非肿瘤指示物的荧光诊断和PDT治疗,如关节炎、炎症性疾病、病毒或细菌感染、皮肤科、眼科或泌尿学障碍。由于这些化合物对靶标(肿瘤细胞、细菌、与炎症相关的细胞)也表现出毒性,因此这些生物活性化合物也可用于对这些指示物进行独立于光的治疗。本发明的优选实施例包括合成金属或半金属配合物结构的方法,其中包含一个或多个取代的2,3,5,6-四氟苯基二吡咯甲烷(2,3,5,6-四氟苯基二吡咯)单元。这些二吡咯甲烷(二吡咯)在4-位可以携带各种不同的取代基,从而微调它们的生物性质或两性/亲水性质。本发明的另一个目的是提供具有更高膜亲和力和增强效果的两性化合物。