Preparation and in vitro photodynamic activity of amphiphilic zinc(II) phthalocyanines substituted with 2-(dimethylamino)ethylthio moieties and their N-alkylated derivatives
作者:Wubiao Duan、Pui-Chi Lo、Lei Duan、Wing-Ping Fong、Dennis K.P. Ng
DOI:10.1016/j.bmc.2010.02.020
日期:2010.4
presence of Zn(OAc)2·2H2O and 1,8-diazabicyclo[5.4.0]undec-7-ene to give the corresponding 2,3-disubstituted zinc(II) phthalocyanines. N-methylation or pentylation of the bis[2-(dimethylamino)ethylthio] substituted analogue resulted in the formation of the respective dicationic phthalocyanines. For comparison, the octa-substituted analogues were also prepared by base and zinc-promoted self-cyclization
用2-(二甲基氨基)乙硫醇盐酸盐和K 2 CO 3处理4,5-二氯邻苯二甲腈,根据反应温度,得到4,5-双[2-(二甲基氨基)乙硫基]邻苯二甲腈或杂环稠合的邻苯二甲腈。后者已经在光谱和结构上进行了表征。两种化合物均在Zn(OAc)2 ·2H 2存在下与3当量的未取代邻苯二甲腈混合环化O和1,8-二氮杂双环[5.4.0]十一碳-7-烯得到相应的2,3-二取代的锌(II)酞菁锌。双[2-(二甲基氨基)乙硫基]取代的类似物的N-甲基化或戊基化导致形成各自的双效酞菁。为了比较,通过碱和锌促进的4,5-双[2-(二甲基氨基)乙硫基]邻苯二甲腈的自环化,然后进行N-甲基化,也制备了八取代的类似物。在N,N中检查了这些二取代和八取代的酞菁的光谱和基本光物理性质-二甲基甲酰胺。除杂环稠合的类似物外,所有这些基本上保持非聚集状态,显示适度的荧光发射,并可以产生单线态氧,其中单线态的激发态被氨基取代基还原淬灭