Synthesis and preliminary cytotoxicity of nitrogen mustard derivatives of distamycin A
作者:Yuqiang Wang、Susan C Wright、James W Larrick
DOI:10.1016/s0960-894x(02)00986-1
日期:2003.2
Distamycin and nitrogen mustard conjugates, in which the nitrogen mustard unit was coupled to the C-terminus of the pyrrole, were synthesized. The switching of the nitrogen mustard unit from the N-terminus to the C-terminus did not compromise the compound's cytotoxicity. Compound 3, bearing three pyrrole units, was highly toxic to human K562 leukemia cells in vitro with an IC(50) value of 0.03 microM
合成了其中氮芥子单元与吡咯的C-末端偶联的二霉素和氮芥子结合物。氮芥子单位从N端转换为C端不会损害该化合物的细胞毒性。带有三个吡咯单元的化合物3在体外对人K562白血病细胞具有高毒性,IC(50)值为0.03 microM。在分子上添加反式双键对细胞毒性影响很小。