Reactions of <i>N</i>,<i>N</i>-Bis(2-chloroethyl)-<i>p</i>-aminophenylbutyric Acid (Chlorambucil) with 2‘-Deoxyguanosine
作者:Elina Haapala、Kristo Hakala、Eeva Jokipelto、Juhani Vilpo、Jari Hovinen
DOI:10.1021/tx000249u
日期:2001.8.1
N,N-Bis(2-chloroethyl)-p-aminophenylbutyric acid (chlorambucil, 1) was allowed to react in the presence of 2'-deoxyguanosine (16 mM) at physiological pH (cacodylic acid, 50% base), and the reactions were followed by HPLC/MS/MS techniques. Although the predominant reaction observed was chlorambucil hydrolysis, ca. 24% of 1 reacted with different heteroatoms of the nucleoside. As expected, the principal
使N,N-双(2-氯乙基)-对氨基苯基丁酸(苯丁酸氮芥,1)在2'-脱氧鸟苷(16 mM)的存在下于生理pH(草酸,50%碱)下反应,用HPLC / MS / MS技术跟踪反应。尽管观察到的主要反应是苯丁酸氮芥水解,但是。1的24%与不同的核苷杂原子反应。不出所料,2'-脱氧鸟苷烷基化的主要位点是N7。N7的烷基化导致自然的去嘌呤,N-(7-胍基乙基)-N-羟乙基-对氨基苯基丁酸(5)和相应的N7,N7-双加合物(6)是主要的稳定dGuo衍生物。还检测了其他几种加合物,并通过MS / MS和UV进行了初步鉴定。从它们来看,O(6-),N1-,N(2-)和O5'衍生物可能具有生物学意义。