Novel fluorinated ring-fused chlorins as promising PDT agents against melanoma and esophagus cancer
作者:Nelson A. M. Pereira、Mafalda Laranjo、Bruno F. O. Nascimento、João C. S. Simões、João Pina、Bruna D. P. Costa、Gonçalo Brites、João Braz、J. Sérgio Seixas de Melo、Marta Pineiro、Maria Filomena Botelho、Teresa M. V. D. Pinho e Melo
DOI:10.1039/d0md00433b
日期:——
Investigation of novel 4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-fused chlorins, derived from 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin, as PDT agents against melanoma and esophagus cancer is disclosed. Diol and diester fluorinated ring-fused chlorins, including derivatives with 2-(2-hydroxyethoxy)ethanamino groups at the phenyl rings, were obtained via a two-step methodology, combining SNAr and [8π + 2π]
公开了源自 5,10,15,20-四(五氟苯基)卟啉的新型 4,5,6,7-四氢吡唑并[1,5- a ]吡啶稠合二氢卟酚作为抗黑色素瘤和食道癌的 PDT 药物的研究。通过结合 S N Ar 和 [8π + 2π] 环加成反应的两步法获得了二醇和二酯氟化环稠二氢卟酚,包括苯环上带有 2-(2-羟基乙氧基)乙氨基的衍生物。苯环对位的短链PEG基团与稠合吡唑环上的二醇部分一起促进Soret带的红移、荧光量子产率的降低和单线态氧形成的增加量子产率,提高作为光敏剂所需的光物理特性。这些亲水基团的引入还改善了细胞对敏化剂的掺入,达到初始剂量的近50%的细胞摄取值。合理的设计使得光敏剂对人类黑色素瘤和食道癌细胞系具有令人印象深刻的 IC 50值,分别为 13 和 27 nM。