adjacent molecule and form a one‐dimensional zigzag chain. In 2a, the macrocyclic core of the porphyrin is coplanar and each tin atom possesses a distorted tetrahedral geometry. These compounds (1 and 2) have potent in vitro cytotoxic activity against two human tumor cell lines – CoLo205 and MCF‐7 – and the activity decreases in the order Ph > Cy > PhC(CH3)2CH2 for the R group bound to tin. Copyright © 2013
5,10,15,20-四[4-(三
有机锡烷基氧基)苯基]
卟啉,(R 3 SnO)4
TPP [2,R = Cy(a),Ph(b),PhC(CH 3)2 CH 2( c)]的合成方法是,在BF 3存在下,将4-(三
有机锡基乙氧基)
苯甲醛,4-(R 3 SnO)C 6 H 4 CHO(1)与
吡咯缩合,然后通过
对氯苯胺和通过元素分析,红外,紫外可见和NMR(1 H,13 C和119 Sn)光谱进行表征。X射线单晶衍射结果表明1a和1b具有反式C3 SnO 2三角双锥几何形状,其轴向位置由相邻分子的
酚盐氧和甲酰基氧占据,并形成一维之字形链。在2a中,
卟啉的大环核是共面的,每个
锡原子都具有扭曲的四面体几何形状。这些化合物(1和2)对两种人类肿瘤
细胞系CoLo205和MCF-7具有强大的体外细胞毒性活性,并且与R基团结合时,活性以Ph> Cy> PhC(CH 3)2 CH 2的顺序降低
锡。版权所有©2013