Synthesis and properties of novel type I photosensitizer polycyclic amide

被引:3
|
作者
Wang, Kui [1 ]
Ye, Tao [1 ]
Du, Haoyang [1 ]
Jin, Xiangyu [1 ]
Yi, Xiaofen [1 ]
Gao, Huiying [1 ]
Zhang, Yuan [1 ]
Dong, Wei [1 ]
Liu, Shihui [2 ]
Guan, Jing [1 ]
Lin, Feng [1 ]
Xia, Debin [2 ,3 ]
机构
[1] Harbin Med Univ, Coll Pharm, Dept Organ Chem, Harbin, Peoples R China
[2] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers &, Harbin, Peoples R China
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin, Peoples R China
来源
NANOSCALE ADVANCES | 2023年 / 5卷 / 14期
基金
中国国家自然科学基金;
关键词
PHOTODYNAMIC THERAPY; TUMOR; MODEL;
D O I
10.1039/d3na00341h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Herein, we have designed and synthesized a novel type-I photosensitizer (PhPA) via Rh-catalyzed oxidative cyclization of diacetoxyterephthalamide with alkynes. The photoelectric properties, photosensitivity and photodegradation process of PhPA have been systematically investigated. The remarkable fluorescence quenching effect (& phi;(PL) < 0.01) of PhPA suggests that the intersystem crossing from the singlet excited state to the reactive triplet state is enhanced by the enlarged conjugated backbone. Additionally, the ability of superoxide radical (O-2(-)) generation was confirmed by electron paramagnetic resonance spectroscopy. Finally, the mechanism of PhPA photo-oxidative degradation via the structure of two metabolites is proposed.
引用
收藏
页码:3629 / 3633
页数:5
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